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Amended Consolidated Class Action Complaint, Antitrust Tranche — In re January 2021 Short Squeeze Trading Litigation (Dkt. 451, S.D. Fla.)

Summary

The Amended Consolidated Class Action Complaint in In re: January 2021 Short Squeeze Trading Litigation, Case 1:21-md-02989-CMA (Case No. 21-2989-MDL-ALTONAGA/Torres, Document 451, 127 pages), in the U.S. District Court for the Southern District of Florida, entered January 20, 2022, relating to All Antitrust Actions. Plaintiffs Angel Guzman, Burke Minahan, Christopher Miller and Terell Sterling sue Defendants Robinhood and Citadel, with agents and co-conspirators, on behalf of a class of Retail Investors. Plaintiffs allege that the scheme was finalized during the last week of January 2021.

Summary drafted by a model from the document's text below and checked by script against that text before publication. It is a navigation aid, not a reading of what the document proves. Where AI is used

Date
2022-01-20

Cite this document

“Amended Consolidated Class Action Complaint, Antitrust Tranche (Dkt. 451).” Original at archive.org, dated 2022-01-20. Archived at Pandemic Darlings, https://pandemicdarlings.com/source-documents/2022-01-20-covid-era-misc/, SHA-256 fff2bec6b7589a3500df5eb6c722d726b2c66cbc5390b1ee11c1c9dc97d91792.

Full text

Case 1:21-md-02989-CMA Document 451 Entered on FLSD Docket 01/20/2022 Page 1 of 127




                                   UNITED STATES DISTRICT COURT
                                   SOUTHERN DISTRICT OF FLORIDA

                                 CASE NO. 21-2989-MDL-ALTONAGA/Torres

     IN RE:

     JANUARY 2021 SHORT SQUEEZE
     TRADING LITIGATION
     ____________________________________/

     This Document Relates to:

     ALL ANTITRUST ACTIONS

                     AMENDED CONSOLIDATED CLASS ACTION COMPLAINT




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                                                           TABLE OF CONTENTS

                                                                                                                                              Page(s)
     INTRODUCTION .......................................................................................................................... 1
     JURISDICTION AND VENUE...................................................................................................... 6
     PARTIES ......................................................................................................................................... 7
     A.         Plaintiff Angel Guzman ...................................................................................................... 7

     B.         Plaintiff Burke Minahan...................................................................................................... 8

     C.         Plaintiff Christopher Miller ................................................................................................. 9

     D.         Plaintiff Terell Sterling ........................................................................................................ 9

     E.         Defendant Robinhood ....................................................................................................... 10

     F.         Defendant Citadel ............................................................................................................. 11

     AGENTS AND CO-CONSPIRATORS ........................................................................................ 11
     CLASS ALLEGATIONS .............................................................................................................. 12
     FACTUAL ALLEGATIONS......................................................................................................... 15
                Robinhood’s Business Model and Relationship with Citadel ............................................

                The Mechanics of Trading on Robinhood.........................................................................

                Background: Retail Investors, Institutional Investors, and Short Selling .........................

                The Rise in Stock Prices of the Relevant Securities ..........................................................

                The Illegal Scheme.............................................................................................................

                The Events of January 28, 2021 ........................................................................................

                Collusion Between Robinhood and Citadel Securities ......................................................

                The Anticompetitive Scheme Continued After January 28, 2021 ......................................

                Data Reveals that Shorts Exited Their Exposed Short Positions ......................................

                Relevant Product Markets .................................................................................................

                Robinhood Depended on Citadel Securities for Its Continued Operation ........................

                Robinhood Dominates the No-Fee Brokerage Trading App Market ...............................




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               Retail Investors in the No-Fee Brokerage Trading App Market Are Locked-In to Their
               Respective Brokerages in the Short Term ........................................................................

               Robinhood Customers Have Significant Influence on the Price of Securities ................

               Antitrust Injury .................................................................................................................

               There Are No Procompetitive Efficiency Justifications...................................................

               The Structure and Characteristics of the Market Support the Existence of an
               Anticompetitive Agreement .............................................................................................

               Motive to Collude ............................................................................................................

     CLAIMS FOR RELIEF .............................................................................................................. 121
     PRAYER FOR JUDGMENT ...................................................................................................... 123
     JURY TRIAL DEMANDED....................................................................................................... 124




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           Plaintiffs Angel Guzman, Burke Minahan, Christopher Miller, and Terell Sterling, on

    behalf of themselves and all others similarly situated, bring this Amended Class Action

    Complaint against Defendants Robinhood Markets, Inc., Robinhood Financial LLC, and

    Robinhood Securities, LLC (collectively, “Robinhood”) and Citadel Securities LLC (“Citadel,”

    or “Citadel Securities,” together with Robinhood, “Defendants”) for violations of Section 1 of

    the Sherman Act, 15 U.S.C. § 1.

                                            INTRODUCTION

           1.      This case involves a collusive agreement to restrict individual investors (“Retail

    Investors”) from exercising control over their trades and trading accounts. Robinhood and

    Citadel, each of whom are market leaders in their own relevant markets (the downstream and

    upstream markets, respectively), hatched an anticompetitive scheme to restrict Retail Investors’

    access to specific securities in the stock market, to suppress the prices of these securities, and to

    prevent the market from operating freely and fairly. Robinhood and Citadel entered into an

    illegal agreement to implement this scheme and committed a series of overt acts in furtherance of

    the conspiracy. The agreement was implemented, effective and caused its intended purposes,

    causing hundreds of millions in dollars in damages to the Plaintiffs and the Class they represent.

           2.      Robinhood and Citadel hatched their anticompetitive scheme to restrict Retail

    Investors’ access. Robinhood and Citadel had developed an important and lucrative relationship.

    The relationship was crucial to their respective businesses. They implemented the scheme to

    protect each other: Defendants conspired to prohibit Retail Investors from purchasing the

    Relevant Securities, defined below, to save Citadel from hemorrhaging losses due to its

    accumulation of large short positions, and to save Robinhood’s business model, which depends

    predominantly on the lucrative order flow payments that Robinhood receives from Citadel. In




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    preventing the market from operating freely and fairly, Defendants exercised their market power

    to restrain competition and harm Retail Investors—precisely the type of conduct that the modern

    antitrust law aims to prohibit.

           3.      Defendants’ collusive agreement prevented the market from operating in a

    competitive manner as it would have absent the restraint. As such, Defendants’ agreement

    introduced price artificiality by preventing the trading price from reflecting the supply and

    demand conditions that would have otherwise prevailed in a competitive market. Defendants

    harmed competition by leveraging each other’s market power in their respective markets to limit

    output (trades), reduce the quality of order execution (and thus increase the quality-adjusted

    price), and induce artificial prices for relevant market securities for their own benefit. This

    antitrust injury resulted in damages to Retail Investors, who could not avail themselves of the

    trading opportunities they would have taken advantage absent Defendants’ conduct.

           4.      Robinhood and Citadel are market leaders in the products and services they

    provide. Robinhood has significant market power as a brokerage and controls investor accounts

    of over 31 million American Retail Investors. Robinhood brands itself as a commission free

    brokerage, which was integral to its growth and market valuation. That is, Robinhood does not

    charge Retail Investors money for creating an account or buying securities through its platform.

    How, then, does Robinhood survive as a business? Through the money it makes by selling its

    order flow to market makers like Citadel. Payment for order flow is Robinhood’s primary source

    of revenue. Indeed, Robinhood derives as much as 80% of its revenues from payment for order

    flow. That revenue exceeds hundreds of millions of dollars on an annual basis. Without PFOF

    income, Robinhood would not survive.




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           5.        Citadel is not just any other business partner to Robinhood. Citadel is crucial to

    Robinhood’s success and business prospects. Robinhood’s entire business model is built around

    the PFOF revenue it derives from market makers like Citadel. Citadel alone contributed an

    astonishing 43% to Robinhood’s PFOF revenue, over $326 million, in the first quarter of 2021.

    Indeed, Vlad Tenev, Robinhood’s founder and CEO, acknowledged in Congressional testimony

    that Robinhood’s PFOF relationship with Citadel is Robinhood’s primary source of revenue.

           6.        Retail Investors are individual investors who make investments on their own

    behalf. They purchase securities such as stocks, bonds, options, mutual funds, and exchange

    traded funds (ETFs) through websites and apps provided by brokerage firms or other investment

    service providers such as Robinhood.

           7.        Leading up to January 27, 2021, based on their research and observations, the

    Retail Investors, primarily through Robinhood, invested in certain stocks—GameStop (GME),

    AMC Entertainment (AMC), Bed Bath & Beyond (BBBY), BlackBerry (BB), Express (EXPR),

    Koss (KOSS), Nokia (NOK), Tootsie Roll Industries (TR), and Trivago NV (TRVG) (the

    “Relevant Securities”)—that they believed would increase in value and serve as good investment

    opportunities.

           8.        Historically, Retail Investors paid a fee or commission to their brokerages for

    executing personal trades. Today, most brokerages do not charge their investors a fee per

    transaction, rather, they earn revenue through rebates, kickbacks and other payments from

    market makers. These payments are collectively known as “payment for order flow” or “PFOF.”

    Robinhood bases its business model on payment for order flow. While Robinhood offers

    commission-free app-based brokerage services to Retail Investors at no-cost, it profits by routing

    orders to market makers such as Citadel.



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            9.      When a market maker executes an order, it makes a profit on the spread between

    the “bid” price, the price at which a market maker is willing to buy a security, and the “ask”

    price, the price at which a market maker is willing to sell the security.

            10.     For every transaction, there must be a buyer and a seller. Market makers typically

    will take the other side of a transaction for orders routed to them. For example, if a buy order is

    routed to a market maker and there is no sell order available, market makers execute the order,

    either by selling a security in its inventory or by selling short.

            11.     As more Retail Investors bought the Relevant Securities through Robinhood,

    those orders were routed to market makers like Citadel. Citadel took the other side of the buy

    orders placed by the Retail Investors, i.e., Citadel sold the Relevant Securities short to complete

    the routed Retail Investors’ orders. As Citadel took the other side of more and more buy orders, it

    acquired a massive short position in the Relevant Securities in excess of a billion dollars.

            12.     As the Relevant Securities increased in value, due in large part to Retail Investors’

    purchases of the Relevant Securities, Citadel Securities exposed itself to potential losses of

    several billion dollars. As Retail Investors and others continued to purchase the Relevant

    Securities, Citadel Securities and unnamed co-conspirators were caught in a classic “short

    squeeze.” A “short squeeze” occurs when a stock or other asset rises sharply in value, distressing

    short positions. Short selling investors are faced with a rapid increase in the shorted asset’s value,

    exposing the short seller to increased and theoretically limitless loss.

            13.     Faced with the threat to its short positions posed by the nascent short squeeze,

    Citadel leveraged its PFOF relationship with Robinhood to form and implement an

    anticompetitive scheme to halt trading for essentially all Retail Investors. Robinhood could not

    take the risk of routing its rapidly increasing buy orders to a different market maker, or to the



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    open market, because its relationship with, and revenue stream from Citadel was critical to its

    survival. Robinhood and Citadel conspired, colluded, agreed, and acted in concert to cut off

    access to Retail Investors’ ability to buy the Relevant Securities and thereby artificially

    suppressed the prices of millions of dollars of securities that would have otherwise traded freely

    on the stock market. The scheme arrived at was finalized during the last week of January 2021.

           14.     Knowing full well that Robinhood would follow through with the plan on January

    28, 2021, on January 27, 2021, Citadel Securities executed additional short trades in the Relevant

    Securities in the after-hours session to develop larger short positions in the Relevant Securities in

    anticipation of the Relevant Securities declining in price on January 28, 2021. Robinhood was

    aware that Citadel intended to do so. Then, on January 28, 2021, Robinhood disabled all buy

    features for the Relevant Securities on its platforms thereby stripping the demand-side of the

    market and halting the price appreciation in the Relevant Securities.

           15.     Defendants’ scheme was successful as it drove the stock prices down. Retail

    Investors had no option but to sell or hold shares of their Relevant Securities. At the point in time

    where Defendants engaged in this conspiratorial effort to thwart buyers, the Relevant Securities

    had appreciated to unprecedented levels. Such highly appreciated stocks are generally sensitive

    to reversals in price and can make sharp price movements lower when a reversal occurs.

    Defendants were aware of this dynamic and the propensity of the Relevant Securities to drop

    substantially as a result of the Defendants’ collective action to prevent customers from buying

    the Relevant Securities and thus conspired to ensure that the stock prices for the Relevant

    Securities did not appreciate further and would instead sharply decrease.

           16.     By forcing the Retail Investors to sell their Relevant Securities at lower prices

    than they otherwise would have sold, Defendants caused damage to Plaintiffs and members of



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    the Class they represent. Defendants artificially constricted the price appreciation of the Relevant

    Securities and reduced the price of the Relevant Securities that Retail Investors either sold or

    held below the prices that they would have otherwise obtained in a competitive market free of

    collusion. The injuries caused by Defendants continued for several days and weeks. As a direct,

    foreseeable and proximate result of Defendants’ illegal conspiracy, Plaintiffs and the Class they

    represent sustained hundreds of millions of dollars in damages.

                                     JURISDICTION AND VENUE

           17.      Plaintiffs bring this action on behalf of themselves and on behalf of the members

    of the Class to recover damages, including treble damages, costs of suit, and reasonable

    attorneys’ fees arising from Defendants’ violations of Section 1 of the Sherman Act, 15 U.S.C. §

    1, as well as any and all equitable relief afforded to them under the federal laws pleaded herein.

           18.      This Court has federal question jurisdiction pursuant to 28 U.S.C. § 1331 because

    the case arises under the Constitution, laws, or treaties of the United States.

           19.      This Court also has subject matter jurisdiction pursuant to 28 U.S.C. §§ 1332(d)

    and 1367, in that this is a class action in which the matter or controversy exceeds the sum of

    $5,000,000, exclusive of interest and costs, and in which some members of the proposed Class

    are citizens of a state different from some Defendants.

           20.      Venue is proper in this judicial District pursuant to 28 U.S.C. § 1391(b), (c) and

    (d), because a substantial part of the events giving rise to Plaintiffs’ claims occurred in this

    District, a substantial portion of the affected interstate trade and commerce was carried out in this

    District, and one or more of the Defendants reside in this District or are licensed to do business

    in this District. Each Defendant has transacted business, maintained substantial contacts, or

    committed overt acts in furtherance of the illegal scheme and conspiracy throughout the United



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    States, including in this District. The conspiracy occurred in this judicial District. The conspiracy

    has been directed at, and has had the intended effect of, causing injury to persons residing in,

    located in, or doing business throughout the United States, including in this District.

           21.      This Court has personal jurisdiction over each Defendant because, each

    Defendant: (a) transacted business throughout the United States, including in this District; (b)

    transacted in substantial amounts of the Relevant Securities throughout the United States; (c) had

    substantial contacts with the United States, including this District; and/or (d) engaged in an

    antitrust conspiracy that was directed at and had a direct, foreseeable, and intended effect of

    causing injury to the business or property of persons residing in, located in, or doing business

    throughout the United States, including in this District.

           22.      The activities of the Defendants and all co-conspirators—whether unnamed or as

    of yet unknown—as described herein, were within the flow of, were intended to, and did have

    direct, substantial, and reasonably foreseeable effects on the foreign and interstate commerce of

    the United States.

                                                 PARTIES

           A.      Plaintiff Angel Guzman

           23.      Plaintiff Angel Guzman (“Guzman”) is a resident of the State of New York.

    Guzman purchased shares of BlackBerry Ltd., GameStop Corp., and Nokia Corp. on Robinhood

    and held said shares as of the close of market on January 27, 2021.

           24.      On January 28, 2021, Guzman was prohibited from purchasing the Relevant

    Securities on Robinhood due to the anticompetitive conduct alleged herein.

           25.      Consequently, on January 28, 2021, in an effort to purchase the Relevant

    Securities, Guzman applied for an account with Charles Schwab (“Schwab”) because Schwab



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    was not prohibiting its customers from purchasing the Relevant Securities. Yet, on January 28,

    2021, Guzman was unable to purchase any of the Relevant Securities on Schwab due to the

    amount of time required to open the account.

           26.     From January 29, 2021 through February 4, 2021, Guzman was subject to the

    trading limitations Robinhood imposed on certain of the Relevant Securities.

           27.     As a result of the anticompetitive conduct alleged herein, Guzman sold shares of

    BlackBerry Ltd., GameStop Corp., and Nokia Corp. on Robinhood during the Class Period.

           B.      Plaintiff Burke Minahan

           28.     Plaintiff Burke Minahan (“Minahan”) is a resident of the State of Minnesota.

    Minahan purchased shares of BlackBerry Ltd., GameStop Corp., and Nokia Corp. on Robinhood

    and held said shares as of the close of market on January 27, 2021.

           29.     On January 28, 2021, Minahan was prohibited from purchasing the Relevant

    Securities on Robinhood as a result of the anticompetitive conduct alleged herein.

           30.     Consequently, on January 28, 2021, in an effort to purchase the Relevant

    Securities, Minahan applied for and funded an account with Fidelity because Fidelity was not

    prohibiting its customers from purchasing the Relevant Securities. Minahan was subsequently

    able to purchase a share of GameStop Corp. on Fidelity that day.

           31.     From January 29, 2021 through February 4, 2021, Minahan was subject to the

    trading limitations Robinhood imposed on certain of the Relevant Securities.

           32.     As a result of the anticompetitive conduct described herein, Minahan sold shares

    of BlackBerry Ltd., GameStop Corp. and Nokia Corp. on Robinhood during the Class Period.




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           C.      Plaintiff Christopher Miller

           33.     Plaintiff Christopher Miller (“Miller”) is a resident of the State of Kansas. Miller

    purchased shares of GameStop Corp. on Robinhood and held said shares as of the close of

    market on January 27, 2021.

           34.     On January 28, 2021, Miller was prohibited from purchasing the Relevant

    Securities on Robinhood due to the anticompetitive conduct described herein.

           35.     Consequently, on January 28, 2021, in an effort to purchase the Relevant

    Securities, Miller applied to open accounts with Fidelity and TD Ameritrade (“TD”), because

    these firms were not prohibiting their customers from purchasing the Relevant Securities. Yet, on

    January 28, 2021, Miller was unable to purchase any of the Relevant Securities on Fidelity or TD

    due to the amount of time required to setup the accounts.

           36.     From January 29, 2021 through February 4, 2021, Miller was subject to the

    trading limitations Robinhood imposed on certain of the Relevant Securities.

           37.     As a result of the anticompetitive conduct alleged herein, Miller sold shares of

    GameStop on Robinhood during the Class Period.

           D.      Plaintiff Terell Sterling

           38.     Plaintiff Terell Sterling (“Sterling”) is a resident of the State of California.

    Sterling purchased shares of AMC Entertainment Holdings, Inc., BlackBerry Ltd., GameStop

    Corp. on Robinhood and held said shares as of the close of market on January 27, 2021.

           39.     On January 28, 2021, Sterling was prohibited from purchasing the Relevant

    Securities on Robinhood due to the anticompetitive conduct described herein.

           40.     From January 29, 2021 through February 4, 2021, Sterling was subject to the

    trading limitations Robinhood imposed on certain of the Relevant Securities.



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           41.     As a further result of the anticompetitive conduct alleged herein, Sterling sold

    shares of AMC Entertainment Holdings, Inc., BlackBerry Ltd. and GameStop Corp. on

    Robinhood during the Class Period.

           E.      Defendant Robinhood

           42.     Defendant Robinhood Markets, Inc. (“Robinhood Markets”) is a Delaware

    corporation with its principal place of business at 85 Willow Road, Menlo Park, California.

    Defendant Robinhood Markets, Inc. is the corporate parent of and manages, controls and directs

    the affairs of Defendants Robinhood Financial LLC and Robinhood Securities, LLC.

           43.     Defendant Robinhood Financial LLC (“Robinhood Financial”) is a Delaware

    limited liability company with its principal place of business at 85 Willow Road, Menlo Park,

    California. Robinhood Financial is an introducing broker that provides financial services,

    including an electronic trading platform through which retail investors can trade financial assets.

    It is a wholly-owned subsidiary of Robinhood Markets.

           44.     Defendant Robinhood Securities, LLC (“Robinhood Securities”) is a Delaware

    limited liability company with its principal place of business at 500 Colonial Center Parkway,

    Suite 100, Lake Mary, Florida. Robinhood Securities is a clearing broker that clears accounts

    exclusively for Robinhood Financial LLC. It is a wholly owned subsidiary of Robinhood

    Markets.

           45.     Robinhood Markets and its wholly owned subsidiaries operate as one entity, and

    they are treated as one entity in Robinhood Markets’ IPO Registration Statement. See Robinhood

    Markets, Inc., Registration Statement (Form S-1) (July 1, 2021) (“S-1”) at F-8 (“Robinhood

    Markets, Inc. (‘RHM’, together with its subsidiaries, ‘Robinhood,’ the ‘Company,’ ‘we,’ or

    ‘us,’)”. The S-1 explains that “[t]he consolidated financial statements include the accounts of



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    RHM and its wholly-owned subsidiaries. All intercompany balances and transactions have been

    eliminated.”). Id. at F-9. The S-1 also describes Robinhood Markets and its subsidiaries as a

    “Vertically Integrated Platform.” Id. at 7.

           46.      Robinhood restricted and/or otherwise limited the ability of Retail Investors to

    purchase the Relevant Securities. During the relevant period, Robinhood actively participated in

    the conspiracy and the wrongful acts alleged herein.

           F.      Defendant Citadel

           47.      Defendant Citadel Securities LLC is a Delaware limited liability company,

    headquartered at 131 South Dearborn Street, Chicago, Illinois.

           48.      Citadel Securities is a leading market maker to the world’s institutions and

    broker-dealer firms. Citadel Securities executes approximately 37% of all U.S.-listed retail

    volume, making it the industry’s top wholesale market maker.

           49.      Citadel Securities took significant short positions in the Relevant Securities.

    During the relevant period, Citadel Securities actively participated in the conspiracy and the

    wrongful acts alleged herein.

                                 AGENTS AND CO-CONSPIRATORS

           50.      The anticompetitive and unlawful acts alleged against the Defendants in this

    Amended Class Action Complaint were authorized, ordered or performed by the Defendants’

    respective officers, agents, employees, representatives, or shareholders while actively engaged in

    the management, direction, or control of the Defendants’ businesses or affairs. The respective

    Defendant parent entities identified herein exercise dominance and control over all of their

    respective Defendant subsidiary entities and those respective subsidiaries have a unity of purpose

    and interest with their respective parents.



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           51.      To the extent any respective parent Defendant did not keep a tight rein on its

    respective subsidiary Defendant(s), it had the power to assert control over the subsidiary if the

    latter failed to act in the parent’s best interest. The respective parent Defendants and their

    respective subsidiaries, affiliates and agents thus operated as a single unified entity.

           52.      The Defendants’ agents operated under the explicit and apparent authority of their

    principals.

           53.      Various persons and/or firms not named as Defendants herein may have

    participated as co-conspirators in the violations alleged herein and may have performed acts and

    made statements in furtherance thereof.

           54.      Each Defendant acted as the principal, agent, or joint venture of, or for other

    Defendants with respect to the acts, violations, and common course of conduct alleged herein.

                                         CLASS ALLEGATIONS

           55.      Plaintiffs bring this action for damages on behalf of themselves and all others

    similarly situated as a class action pursuant to Rules 23(a), (b)(2) and (b)(3) of the Federal Rules

    of Civil Procedure, on behalf of the following Class:

           All persons or entities in the United States that held shares of stock or call options
           through Robinhood in GameStop Corp. (GME), AMC Entertainment Holdings Inc.
           (AMC), Bed Bath & Beyond Inc. (BBBY), BlackBerry Ltd. (BB), Express, Inc. (EXPR),
           Koss Corporation (KOSS), Nokia Corp. (NOK), Tootsie Roll Industries, Inc. (TR), or
           Trivago N.V. (TRVG) as of the close of market on January 27, 2021, and sold the above-
           listed securities from January 28, 2021 up to and including February 4, 2021 (the “Class
           Period”).




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           56.     This Class definition specifically excludes the following person or entities:

                   a.      any of the Defendants named herein;

                   b.      any of the Defendants’ co-conspirators;

                   c.      any of Defendants’ parent companies, subsidiaries, and affiliates;

                   d.      any of Defendants’ officers, directors, management, employees, or agents;

                   e.      all governmental entities; and

                   f.      the judges and chambers staff in this case, as well as any members of their

                           immediate families.

           57.     Plaintiffs do not know the exact number of Class members, because such

    information is in the exclusive control of Defendants. Plaintiffs are informed and believe that,

    due to the nature of the trade and commerce involved, there are millions of Class members

    geographically dispersed throughout the United States and elsewhere, such that joinder of all

    Class members in the prosecution of this action is impracticable.

           58.     Plaintiffs’ claims are typical of the claims of their fellow Class members because

    Plaintiffs and all Class members were damaged by the same wrongful conduct of Defendants as

    alleged herein, and the relief sought herein is common to all members of the Class.

           59.     Plaintiffs will fairly and adequately represent the interests of the Class. Plaintiffs

    have no conflicts with any other members of the Class. Furthermore, Plaintiffs have retained

    sophisticated and competent counsel who is experienced in prosecuting antitrust class actions, as

    well as other complex litigation.

           60.     Numerous questions of law or fact common to the entire Class—including, but

    not limited to those identified below—arise from Defendants’ anticompetitive and unlawful

    conduct:



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                    a.      whether Defendants combined or conspired with one another to artificially

                            suppress prices for the Relevant Securities at any time during the Class

                            Period to shareholders of the Relevant Securities in the United States;

                    b.      whether Defendants combined or conspired with one another to fix, raise,

                            maintain, stabilize and/or suppress prices for the Relevant Securities at

                            any time during the Class Period to shareholders of the Relevant Securities

                            in the United States;

                    c.      whether Defendants’ conduct caused the prices of the Relevant Securities,

                            sold or held by the Retail Investors in the United States at any time during

                            the Class Period to be artificially fixed, suppressed, maintained or

                            stabilized; and

                    d.      whether Plaintiffs and the other members of the Class were injured by

                            Defendants’ conduct and, if so, the appropriate Class-wide measure of

                            damages.

            61.     These and other questions of law and fact are common to the Class and

                    predominate over any questions affecting the Class members individually.

            62.     Defendants have acted on grounds generally applicable to the Class. This class

    action is superior to alternatives, if any, for the fair and efficient adjudication of this controversy.

    Prosecuting the claims pleaded herein as a class action will eliminate the possibility of repetitive

    litigation. There will be no material difficulty in the management of this action as a class action.

            63.     The prosecution of separate actions by individual Class members would create

    the risk of inconsistent or varying adjudications, establishing incompatible standards of conduct

    for Defendants.



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                                       FACTUAL ALLEGATIONS

           64.      Retail Investors participate in online financial discussion forums like Reddit,

    Facebook, and TikTok. Through these forums, Retail Investors share information about their

    market observations to help fellow investors benefit from their research. During the relevant

    period, Retail Investors exchanged information regarding the Relevant Securities on public fora.

    Based on their research, the Retail Investors, through SEC registered broker-dealers, such as

    Robinhood, purchased the Relevant Securities.

           65.      In contrast, market makers like Citadel and unnamed co-conspirators established

    “short” positions in the Relevant Securities. By the nature of the developed short positions,

    Citadel and certain unnamed co-conspirators, stood to benefit and substantially profit were the

    prices of the Relevant Securities to decrease. Entering into short positions is highly speculative.

    In a free and open market, there would be substantial financial risk that prices might increase

    causing traders with short positions to experience losses.

           66.      Citadel and unnamed co-conspirators found themselves poorly positioned for the

    rise in the Relevant Securities prices that occurred in late January 2021. As Relevant Securities

    increased in price, Citadel was exposed to billions of dollars in potential losses.

           67.      Rather than facing the consequences of their exposure to the rising prices of the

    Relevant Securities, Citadel and their co-conspirators entered into an anticompetitive scheme

    with Robinhood to prevent the market from operating freely, to halt the significant increase in the

    prices of the Relevant Securities, to avoid their own financial losses and reduced profits, and to

    cause financial losses to Plaintiffs and the members of the Class.




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                      Robinhood’s Business Model and Relationship with Citadel

           68.      Robinhood Financial is an introducing broker-dealer that offers brokerage

    services to Retail Investors. Its primary business is providing retail customers with an app-based

    brokerage platform (“App”) to place orders to buy and sell stocks, ETFs, and other securities or

    investments strategies such as trading on margin or using options strategies.

           69.      Robinhood was founded on the belief that “everyone should be welcome to

    participate in [the] financial system.” (S-1 at 1). Marketed exclusively to Retail Investors, the

    Company’s stated mission is to “democratize finance for all.” Id. In furtherance of this mission,

    Robinhood offers “commission-free” brokerage services to its users.

           70.      Robinhood’s business model proved successful. Robinhood launched its

    application in 2015, and by mid-2018, it had become one of the largest-retail brokers in the

    United States. In October 2018, Robinhood launched its own custody and clearing system (i.e.,

    Robinhood Securities), which allowed it to help its customers more easily and efficiently. As a

    result, Robinhood’s customer growth continued to surge.

           71.      In 2015, Robinhood had fewer than 500,000 users. Today, Robinhood has more

    than 31 million users, 12.5 million of whom had funded accounts as of December 31, 2020 (11.7

    million monthly active users) and 18.0 million of whom had funded accounts as of March 31,

    2021 (17.7 million monthly active users). (S-1, at 55, 121-122). And, according to Robinhood

    itself, close to 50% of all new funded retail accounts opened in the United Stated from 2016 to

    2021 were new accounts created on Robinhood. (S-1, at 2).

           72.      The trading demand of Robinhood’s users has a substantial and outsized

    influence on the movements of stock price. According to a research study published by the Swiss

    Finance Institute, Robinhood users drove 10% of the variation in returns from stocks in the



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    second quarter of 2020, despite holding only about 0.2% of the aggregate U.S. market

    capitalization. This is because Retail Investors buy and sell more than their institutional

    counterparts in response to changes in the price of the underlying security.

           73.      Robinhood was able to grow its user base, in part, by offering “commission-free”

    investing. But “free trading” on Robinhood is not really free. While Robinhood users do not pay

    trade commissions, they pay a hidden price with each trade in the form of higher transaction

    costs as Robinhood earns revenue through rebates, kickbacks and other payments from market

    makers, such as Citadel Securities, who compensate Robinhood for preferential access to

    Robinhood’s order flow (i.e., payment for order flow).

           74.      For example, if a Retail Investor purchases a share of stock through Robinhood,

    Robinhood sends the order to a large market maker like Citadel Securities and receives payment

    in return. Citadel Securities, meanwhile, makes money by executing an offsetting trade at a more

    favorable price than it transacted for the Robinhood user’s purchase, a practice known as

    “capturing the spread.” While the profit may be relatively small for an individual trade, the sheer

    number of trades sum to a significant value.

           75.      Payment for order flow is Robinhood’s primary source of revenue. From 2015 to

    2016, an astonishing 80% of Robinhood’s revenue came from this practice. Today, Robinhood

    still derives the vast majority of its revenue, somewhere between 60% to 70%, from selling order

    flow. In the first quarter of 2021 alone, Robinhood reportedly earned a staggering $331 million

    in revenue from payment for order flow, more than tripling its earnings from the first quarter of

    2020, a record year in which Robinhood earned $687 million in payment for order flow revenue,

    up 514% year-on-year from 2019.




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           76.     Notably, market makers such as Citadel pay a premium for Robinhood’s order

    flow. For example, in the first quarter of 2020, market makers were paying Robinhood 24 cents

    per 100 equity shares, while Charles Schwab, E*Trade and TD Ameritrade received an average

    of 14 cents per 100 shares.

           77.     Payment for order flow is so vital to Robinhood’s business model that in its Form

    S-1, Robinhood stated “[b]ecause a majority of [Robinhood’s] revenue is transaction-based

    (including payment for order flow, or “PFOF”), reduced spreads in securities pricing, reduced

    levels of trading activity generally, changes in our business relationships with market makers and

    any new regulation of, or any bans on, PFOF and similar practices may result in reduced

    profitability, increased compliance costs and expanded potential for negative publicity.” (S-1, at

    34).

           78.     Not only is payment for order flow vital to Robinhood’s business model, so too is

    Robinhood’s relationship with Citadel Securities. As illustrated in Robinhood’s Form S-1 below,

    in 2019, 29% of Robinhood’s revenue, or over $80M, was derived from its payment for order

    flow relationship with Citadel Securities, and in 2020, 34% of Robinhood’s revenue, or over

    $326M, was derived from these transactions:




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           79.     The SEC requires broker dealers to disclose how their customers’ orders are

    handled, including reporting the entities that handle their order flow, in what are known as Rule

    606 disclosures.

           80.     According to Robinhood’s SEC Rule 606 disclosure, Citadel Securities was

    responsible for approximately 43%, or over $141 million of the approximate $330 million that

    Robinhood received as payment for order flow in the first quarter of 2021.

           81.     Robinhood’s Form S-1 revealed the following risk related to Robinhood’s

    business relationships with market makers, such as Citadel Securities:

           Our PFOF and Transaction Rebate arrangements with market makers are a matter
           of practice and business understanding and not documented under binding
           contracts. For the three months ended March 31, 2021, 59% of our total revenues
           came from four market makers. If any of these market makers, or any other market
           makers with whom we do business, were unwilling to continue to receive orders
           from us or to pay us for those orders (including, for example, as a result of unusually
           high volatility), we may have little to no recourse and, if there are no other market
           makers that are willing to receive such orders from us or to pay us for such orders,
           or if we are unable to find replacement market-makers in a timely manner, our
           transaction-based revenue would be impacted negatively. This risk is particularly
           heightened for RHC as there are very few market makers that are currently able to
           execute cryptocurrency trades. Furthermore, if market makers decide to alter our
           fee structure or to enter into more favorable fee structures with our competitors, our
           transaction-based revenue could be impacted negatively. Any decrease in


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            transaction-based revenue from market makers could have an adverse effect on our
            business, financial condition and results of operations.

            (S-1, at 53).

            82.     Notwithstanding the outlined risks associated with Robinhood’s PFOF

    arrangement with market makers, Robinhood was able to continue to capitalize off of its business

    model. In March 2021, Robinhood filed confidentially for an initial public offering (“IPO”) and

    on July 29, 2021, Robinhood went public, listing on the NASDAQ stock exchange under the

    ticker “HOOD.”

                                 The Mechanics of Trading on Robinhood

            83.     Once a trade is placed on Robinhood’s App, the customer’s cash and securities

    are custodied by Robinhood Financials’ clearing broker, Robinhood Securities, which services

    the customer’s account by executing, clearing and settling the customer’s trade.

            84.     In order to execute the trade, Robinhood Securities typically routes the trade to a

    market maker, predominately Citadel. Citadel pays or provides rebates to Robinhood in

    exchange for Robinhood routing its customers trades to them, a controversial practice known as

    “payment for order flow.”

            85.     As a market maker, Citadel’s job is to provide bid prices (i.e., the price investors

    are willing to purchase at) and ask prices (i.e., the price investors are willing to sell at) for the

    securities. The difference between the two is known as the “spread.” Citadel maintains an

    inventory of securities from its own trading and matches incoming buy and sell orders in order to

    fill those orders. Once an order is filled, the spread is pocketed by Citadel as a profit. These

    spreads can be very small (e.g., under even a penny per transaction) but become significant due

    to the very large volume of orders fueled by Robinhood and filled by Citadel.




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           86.      Citadel may execute an order routed to it by Robinhood by taking the other side

    of the transaction, a process known as “internalization.” For example, if Citadel receives an order

    to buy a certain security, it may route that order to an exchange or it may execute the order in its

    capacity as a dealer by transacting against the buy order with contra-side sell orders, either from

    its own inventory or by selling the security short.”

           87.      Once the trade is executed, Robinhood relays the trade information to the

    Depository Trust & Clearing Corporation’s (“DTCC”) affiliated clearinghouse entity, the NSCC

    for clearinghouse and settling services. Trades do not settle instantaneously. Rather, trades

    submitted to the NSCC settle at the end of the second business day after submission, in what is

    known as T+2 settlement. This means that when a trade is executed on a Monday, the cash and

    the securities related to that trade are electronically transferred on Wednesday.

           88.      The NSCC’s stated purpose is to reduce the cost, settlement risk, and operational

    risk of clearing and settling multiple transactions among multiple parties. Between trade

    submission and settlement, NSCC guarantees all cleared trades among its members. If a clearing

    member (i.e., Robinhood) defaults on its settlement obligations, NSCC guarantees the delivery of

    cash and securities to its non-defaulting members.

           89.      On May 6, 2021, Michael C. Bodson (“Bodson”), the CEO of the DTCC, testified

    before the U.S. House Committee on Financial Services and explained that:

                   The U.S. Markets are multi-layered, and customers generally execute
                   trades through one or more brokers or broker-dealers. NSCC direct
                   clearing members are responsible for completing their customers’
                   trades at the NSCC. NSCC’s rules outline clear financial and
                   operation risk management obligations that apply to direct clearing
                   members.

           90.      As explained by Bodson in his Congressional testimony, margin protects NSCC

    and all market participants against clearing member defaults, and margin requirements must be


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    met by clearing members on a timely basis. NSCC’s margin requirements are rules-based and

    subject to regulatory review and approval. The NSCC collects clearing fund contributions, or

    margin, at the start of each day and intraday in volatile markets. According to Bodson, the rules

    for calculating the contribution requirements and the timing of collection of these margin

    requirements are known to every member. Furthermore, according to Bodson, NSCC provides

    reporting tools, calculators and documentation that allow clearing members to monitor their risk

    in near real-time and estimate clearing fund contribution requirements. Bodson indicated that

    many clearing members have employed this information to build their own internal calculators

    and monitoring tools to aid them in risk management.

           91.      Internal communications at Robinhood over the operative time period

    demonstrate that Robinhood’s staff did not use these tools in a proactive manner to anticipate the

    events of January 28, nor was there a consistent practice of tracking concentration levels relative

    to margin requirements. In short, Robinhood did not utilize NSCC tools to conduct routine and

    rigorous risk assessment and scenario analysis of the Relevant Securities despite the significant

    role Robinhood played in providing services to traders that actively traded such securities.

                 Background: Retail Investors, Institutional Investors, and Short Selling

           92.      As reported in the Financial Times, among other sources, Retail Investors’ market

    share of U.S. equity trading has steadily increased since 2019.




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           93.      Credit Suisse estimated that at various times in 2021, Retail Investors accounted

    for a third of all U.S. stock market trading.

           94.      Retail Investors execute their personal trades through brokerages, such as

    Robinhood, that provide mobile apps and online platforms from which Plaintiffs and other Retail

    Investors are able to buy and sell securities.

           95.      As early as 2019, the Retail Investors, via online discussion forums, developed

    the trading hypothesis that shares of GameStop’s (GME) stock were trading at lower prices than

    they should be based on GameStop’s publicly available financial disclosures and future

    prospects.

           96.      GameStop for example, despite being a brick-and-mortar store specializing in

    video games that can now be downloaded from a person’s home, possessed ample cash reserves,


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    was regularly paying off its debts and was presented new opportunity with the release of the next

    generation of gaming platforms. Despite this, in 2019, shares of GameStop’s stock were trading

    as low as $3 per share. Some Retail Investors correctly deduced that GameStop was undervalued

    for a variety of reasons that included the observation that large financial institutions had taken

    large short positions that resulted in levels of short interest that would bear significant costs if the

    outlook on GameStop improved and the short positions had to be exited.

            97.     In addition to GameStop, Retail Investors invested in the other Relevant

    Securities based on their own valuations and anticipated business performance.

            98.     Like other Retail Investors, Plaintiffs purchased “long” positions in the Relevant

    Securities.

            99.     In a free and open market, stock prices are determined by supply and demand and

    other market forces. Ordinarily, as more investors buy a certain stock, they tend to bid up the

    stock’s price, and the market price for the stock rises. Conversely, as investors sell stock, the

    stock price is bid down and the market price for the stock declines.

            100.    If an investor has long positions, it means that the investor has bought and owns

    those shares of stocks (in contrast to a short position, where the investor owes those stocks to

    someone, but does not actually own them yet). Investors holding long positions generally own

    the stock with the expectation that it will rise in value and it will be worth more than they paid

    for it. When the investor sells a long position, the profit or loss from the sale is the difference

    between the purchase price of the security and the sale price of the security.

            101.    Retail Investors took long positions in the Relevant Securities because they

    believed that the respective companies’ business prospects were improving, and that share prices




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    of the Relevant Securities would rise, as can be expected when a market is operating freely,

    without fraud, conspiracy or manipulation.

           102.     Retail Investors have limited access to the stock market. Generally, Retail

    Investors must invest in the stock market through intermediaries such as Robinhood.

           103.     Institutional investors, like Citadel, on the other hand have considerably greater

    access to the stock market. They can invest directly, and those that are broker-dealers do not need

    to use other brokerages to execute their trades in securities.

           104.     Institutional investors also can trade on private stock exchanges that members of

    the public cannot access. These exchanges are known colloquially as “dark pools” or “dark

    exchanges” because of their lack of transparency and because they do not disseminate public

    quotations of securities prices.

           105.     Similarly, as market makers internalize trades they do so within their own dark

    trading operations, which are not accessible to the broader market.

           106.     Dark pools, which account for 40% of all U.S. stock trades, are vastly different

    from traditional or “lit” stock exchanges such as the New York Stock Exchange or NASDAQ. In

    a lit exchange, the order book including the price and amount an investor wants to trade is public

    and visible to all participants. Dark pools on the other hand do not display publicly how much an

    investor wants to buy or at what price. Stock purchased in a lit exchange can be sold on a dark

    exchange, and stock purchased in a dark exchange can be sold on a lit exchange.

           107.     While institutional investors can trade on both dark and lit exchanges, many

    prefer dark pools over “lit” exchanges because they can discreetly buy or sell securities in large

    blocks, even in the millions, while mitigating some of the price impact their buying or selling

    activity would otherwise have if they transacted on the “lit” national securities exchanges. Dark



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    pools permit institutional investors to trade without visible exposure of their order to the market

    as a whole until after the trade has been executed. Furthermore, dark pools typically offer lower

    execution fees than national securities exchanges and may provide some access to retail order

    flow that market making units have decided not to internalize.

           108.     As indicated above, “short” sellers essentially bet on an asset’s failure rather than

    its success. Short sellers borrow shares of a company that they believe will reduce in price, in the

    hope that once the share price falls, they might be able to buy the shares at a reduced price and

    return them to the lender. They pocket the difference. A short seller’s profit is the share value lost

    at the time a short seller “buys” a security versus the time when the short seller “borrows” the

    security. For example, a short seller might sell a share of a stock in Company X for $10 and then

    borrow a share of Company X (for a fee) from a broker for $10. The short seller immediately

    sells the share and hopes that the value of the share will drop. The share price then falls to $4.

    The short seller then purchases the share at the reduced value of $4 and returns it to the lender

    and earns the difference of $6 (less the fees incurred in borrowing the share). On the other hand,

    if the price of the share rises to $20, the short seller would need to purchase the share at $20 to

    return it to the lender, thereby incurring a loss of $10 on top of any fees incurred.

           109.     The more a stock price increases, the greater the loss to the short seller. The

    theoretical loss to a short investor who predicts wrongly is potentially infinite because there is no

    upper boundary on the price to which a company’s share price can rise. Should a short seller

    want to exit a short position in the face of rapidly increasing stock price, they must “buy back”

    the stock at the higher price to return to the institution they borrowed the share from. Risk from

    bad short selling investments is potentially catastrophic.




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            110.    On the other hand, the loss to an investor who purchases a stock “long” is limited

    to the difference between the amount paid for the shares and the lowest price to which the stock

    can fall, which, of course, is zero.

            111.    As reported by the financial analytics firm S3, on January 4, 2021, GameStop’s

    peak short interest was 141.8% of its float (i.e., publicly tradable shares), which indicates that

    some short sellers were selling shares without either owning them or identifying an owner from

    whom shares could be borrowed. The practice of short selling without identifying a source from

    which they can be borrowed is an illegal practice known as “naked shorting.” In a “naked” short

    sale, a seller does not borrow or arrange to borrow the necessary securities in time to deliver

    them to the buyer within the standard two-day settlement period.

            112.    Naked short selling is illegal pursuant to SEC Regulation SHO, which requires

    broker-dealers “to identify a source of borrowable stock before executing a short sale in any

    equity security with the goal of reducing the number of situations where stock is unavailable for

    settlement.” The regulation is available at: https://www.sec.gov/investor/pubs/regsho.htm.

    Sometimes, however, the stock being borrowed may not be available from the lender at the time

    of settlement, possibly resulting in a failure to deliver.

            113.    Regulation SHO also requires firms that clear and settle trades to take action to

    close out failures to deliver by borrowing or purchasing securities of like kind and quantity. For

    short sale transactions, failures to deliver must be closed out by no later than the beginning of

    regular trading hours on the settlement day following the settlement date, referred to as T+4. For

    long sale transactions or bona fide market making activities, failures to deliver must be closed

    out by no later than the beginning of regular trading hours on the third settlement day following

    the settlement date, referred to as T+6.



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           114.      As a result of Retail Investors building long positions in the Relevant Securities,

    by both buying stock in the Relevant Securities and buying “out of the money” call options in the

    Relevant Securities that had “strike prices” well above the prices that the Relevant Securities

    were then trading at, the stock price of these companies began to rise. As the value of the

    Relevant Securities increased, this resulted in both a “short squeeze” and a “gamma squeeze.”

           115.      As explained above, a short squeeze occurs when a stock or other asset rises

    sharply in value, distressing short positions in the asset. A short squeeze therefore is when

    investors in short positions are faced with a rapid increase in the shorted asset’s value, exposing

    the short seller to increased loss. As the price of the asset rises, short sellers may face pressure to

    buy back shares of stock to exit their short positions to mitigate their losses. In the absence of

    market manipulation or some other intervention, as short sellers exit their short positions by

    buying shares of stock to cover their short positions, the purchase of those shares further

    increases the price of the stock.

           116.      There is another phenomenon known as a “gamma squeeze” involving a

    derivative financial vehicle known as an option or an option contract.

           117.      “Options” are derivative financial instruments based on the value of an

    underlying security. An option contract offers the buyer the opportunity, but not the obligation, to

    buy or sell the underlying asset depending on the type of option contract.

           118.      The holder of an option contract is not required to buy or sell the asset if they

    choose not to.

           119.      An option is “in the money” (ITM) if the option has a strike price that is

    favorable in comparison to the prevailing market price for the asset. For example, a call option is

    in the money if the option holder has the right to exercise the option to buy the underlying asset



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    below its current market price. An ITM put option means the option holder can sell the security

    above the current market price.

            120.    Conversely, an “out of the money” (OTM) option has a strike price unfavorable

    in comparison to the market price for the underlying asset. For example, an OTM call option

    means the underlying asset’s current market price is below the strike price of the call. An option

    is “at the money” if the strike price equals the underlying asset price.

            121.    Options are priced based on a variety of risk variables known colloquially as the

    “Greeks” as they are represented by letters of the Greek alphabet.

            122.    “Delta” represents the rate of change between an option’s price a small change in

    the price of the underlying asset, i.e., the price sensitivity of the option with respect to the asset.

    The units of Delta can be normalized to the range -1 to +1, reflecting a one-dollar change in the

    underlying asset price. The Delta of a call option ranges from 0 to 1, whereas the Delta of a put

    option ranges from 0 to -1. A call option with a Delta of 0.10 therefore will increase by 10 cents

    for every one dollar the price of the underlying asset rises, absent any other changes.

            123.    “Gamma” represents the rate of change between an option’s Delta and the

    underlying price. The units of Gamma can be normalized to reflect the amount the Delta would

    change given a one-dollar move in the price of the underlying asset. For example, if a call option

    has a Gamma of 0.10, if the price of the underlying asset increases by one dollar, then the

    option’s Delta will increase by 0.10, absent any other changes.

            124.    Like a short squeeze, a Gamma Squeeze occurs when a security experiences a

    sharp price increase. For example, consider when the price of an underlying security rises up

    towards the direction of the strike prices of deep out of the money options. When such an

    increase occurs, options that were previously unlikely to reach their strike prices before



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    expiration see a rapid increase in values as it becomes more likely that the options will reach

    their strike prices.

            125.     At the same time, the options’ sensitivity to the price increases, i.e., the Delta,

    also increases due to the options’ Gamma. The Gamma also increases as the option approaches

    being in the money.

            126.     As the Gamma increases, market makers hedge by purchasing more of the

    underlying security, further driving the price of the security higher. As the price goes higher,

    more deep out of the money options either go in the money or approach their strike price,

    creating a feedback loop that rapidly increases the price of the underlying security, which then

    moves more out of the money options towards at the money or above.

                            The Rise in Stock Prices of the Relevant Securities

            127.     With regard to GameStop, a popular Reddit user who also creates content on

    YouTube under the handle Roaring Kitty (“Roaring Kitty”) had reason to believe that hedge

    funds had entered into these short positions with respect to GameStop’s stock. Based on his own

    financial analysis, Roaring Kitty determined that GameStop was actually undervalued due to a

    range of factors, including that there had been extensive shorting of GameStop by numerous

    funds, and made an initial purchase of $50,000 of GameStop stock and published his investments

    on the Reddit financial discussion forum WallStreetBets.

            128.     WallStreetBets is a financial discussion forum on Reddit. WallStreetBets is

    characterized by a particular culture centered around discussion of financial investments and

    memes. Many users on WallStreetBets are sophisticated, financially savvy Retail Investors with

    business acumen.




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           129.     Roaring Kitty regularly updated and continued to publish information and

    analysis that GameStop stock was undervalued. In August 2020, Roaring Kitty posted an in-

    depth analysis of GameStop’s stock on his YouTube channel, walking his subscribers through his

    extensive analysis of the value proposition of the stock.

           130.     Attention to GameStop’s stock was not limited to online financial communities

    and discussion forums. Dr. Michael Burry (who gained fame for his investment decisions and for

    correctly predicting the 2008 financial crisis as depicted in the film The Big Short) and his

    investment firm Scion Asset Management, LLC spent nearly $15 million to purchase stock in

    GameStop in 2019 at share prices between $2 and $4.20 per share for a 5% ownership position.

    GameStop’s share price steadily increased and Retail Investors took notice.

           131.     Ryan Cohen, the co-founder and former CEO of the pet e-commerce website

    Chewy.com, invested $76 million and acquired a 12.9% stake in GameStop in 2020. Several

    Retail Investors were optimistic about Ryan Cohen’s involvement in GameStop, who joined the

    board of directors on January 11, 2021.

           132.     In response, Retail Investors continued to build long positions and call options in

    GameStop and the other Relevant Securities. Given the operation of a free and open market,

    GameStop and other Relevant Securities were bid up and share prices increased. GameStop, for

    example, jumped 78.46% from $43.03 per share on January 21, 2021, to $76.79 per share on

    January 25, 2021. This massive price increase exposed the short sellers of the Relevant

    Securities, including Citadel Securities, to very substantial loses. It was a textbook short squeeze.

           133.     The tremendous growth in the Relevant Securities’ stock price resulted in

    significant and potentially disastrous exposure of institutional investors, like Citadel and hedge

    funds, holding short positions in the Relevant Securities.



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            134.    On January 25, 2021, Citadel LLC injected around $3 billion along with another

    fund, Steven Cohen’s Point72 Asset Management (“Point72”), to bailout Melvin Capital from its

    distressed short position. Notably, Melvin Capital’s founder and CEO, Gabe Plotkin, began his

    career at Citadel before becoming a top portfolio manager at Point72’s predecessor firm, SAC

    Capital Management.

            135.    The following day, January 26, 2021, GameStop’s share price continued to surge

    after Social Capital’s Chamath Palihapitiya tweeted that he bought GameStop call options,

    betting the share price would go higher. GameStop closed at $147.98, up 92.7% from the

    previous day’s close.

            136.    Also on January 26, 2021, Tesla CEO Elon Musk (“Musk”) rallied behind

    GameStop’s epic price surge, tweeting “Gamestonk!!” along with a link to the WallStreetBets

    Reddit page. Shares of GameStop were up more than 60% in after-hours trading following

    Musk’s tweet.

            137.    On January 27, 2021, the price of the Relevant Securities soared as trading

    volumes in U.S. cash equities and options hit an all-time record level at 24.5 billion shares traded

    and 57.1 million contracts traded. GME’s stock price peaked at $380.00, before reaching a

    closing high of $347.51, a 134.84% increase from the previous day. Other Relevant Securities

    experienced similar surges. AMC’s share price skyrocketed over 300% and EXPR’s rose over

    200%.

            138.    Concurrently, Retail Investors were buying deep out of the money call options in

    the weeks leading up to January 28, 2021, based on their beliefs that the Relevant Securities were

    unfairly valued below their true value.




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           139.     As the price of the Relevant Securities increased, the Delta and Gamma of the

    previously deep out of the money call options purchased by Retail Investors came closer to their

    strike price, further increasing the price of the Relevant Securities.

           140.     Additionally, January 29, 2021 was an expiry date for options. As the expiration

    date for options approaches, the Gamma generally increases, further compounding the effects the

    price increases of the Relevant Securities had on the Delta and Gamma of the Retail Investors’

    call options.

           141.     Similarly, as retail orders for the Relevant Securities were routed to the market

    makers, the market makers, such as Citadel Securities, took the other side of those buy orders,

    i.e., improvidently short selling the security to execute the order by filling buy orders without

    owning the securities being purchased.

           142.     Further, as market makers such as Citadel Securities took the other side of the

    incoming call option and security purchases from Retail Investors, they built up significant short

    positions in the Relevant Securities.

           143.     As set forth above, the more a stock price increases, the greater the potential loss

    for the short seller. This culmination of events (i.e., the short squeeze) triggered Robinhood to

    place unprecedented trading restrictions on the Relevant Securities.

           144.     At approximately 5:00 p.m. on January 27, 2021, the SEC released a statement

    that it was “aware of and actively monitoring the on-going market volatility in the options and

    equities markets,” but neither the SEC nor any other government agency issued any directive to

    restrict trading in the Relevant Securities.




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           145.   The figure below summarizes the prices of GameStop’s stock from December 28,

    2020 through January 29, 2021.




           146.   The figure below summarizes the prices of Nokia Corporation’s stock from

    December 28, 2020 through January 29, 2021.




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           147.   The figure below summarizes the prices of AMC Entertainment Holdings, Inc.’s

    stock from December 28, 2020 through January 29, 2021.




           148.   The figure below summarizes the prices of Koss Corporation’s stock from

    December 28, 2020 through January 29, 2021.




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           149.   The figure below summarizes the prices of Trivago stock from December 28,

    2020 through January 29, 2021.




           150.   The figure below summarizes the prices of Bed Bath & Beyond stock from

    December 28, 2020 through January 29, 2021.




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           151.   The figure below summarizes the prices of Express stock from December 28,

    2020 through January 29, 2021.




           152.   The figure below summarizes the prices of Tootsie Roll Industries Inc.’s stock

    from December 28, 2020 through January 29, 2021.




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           153.    The figure below summarizes the prices of BlackBerry’s stock from December

    28, 2020 through January 29, 2021.




                                            The Illegal Scheme

           154.    Rather than use their financial acumen to compete and invest in good

    opportunities in the market to recoup the loss in their short positions as a result of the growth in

    the Relevant Securities’ prices or paying the price for their highly speculative accumulation of

    large short positions, Robinhood and Citadel instead hatched an anticompetitive scheme to limit

    buy-side trading in the Relevant Securities.

           155.    After the market closed on January 27, 2021, suspicious coordinated after-hours

    trading occurred.

           156.    Analytics reveals a significant volume of GME short volume immediately prior to

    the markets opening on January 28, indicating that the after-hour traders were trading in

    anticipation of a GME sell-off. The grey lines in the chart below represent the volume of short




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    positions in GME; they show the volume of short positions was much higher before January 28,

    2021 than any of the prior days and had steadily increased the week prior.




            157.    Due to constraints imposed by retail brokers, Retail Investors cannot engage in

    after-hours trading to the same extent as institutional investors. It is therefore likely that this

    increase in short volume is the result of institutional investors, like Citadel Securities and hedge

    funds taking new short positions.

            158.    Retail investors cannot freely switch broker-dealers at any time. Oftentimes, it

    takes days to open a new account at another broker dealer, meaning that if a broker dealer were

    to restrict trading on their platform, an individual retail trader is generally not able to invest with

    another broker dealer at that time unless they had a pre-existing account.




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            159.    Further, transferring or withdrawing funds from an existing account with a broker

    dealer often requires days to effectuate. For example, on Robinhood, it takes three-to-five days

    from the time a Robinhood user requests funds to be transferred or withdrawn for those funds to

    be actually available for use elsewhere. Should a Robinhood user wish to completely withdraw

    or transfer all funds from their account, in addition to the delay, the user would be prohibited

    from making trades on their Robinhood account while the request is being processed, i.e., the

    user would be prohibited from buying positions in securities or selling positions in securities they

    already hold.

            160.    During the week of January 25, 2021, many Robinhood users reported even

    lengthier delays when attempting to transfer or withdraw funds. When some Robinhood users

    attempted to close their accounts, they experienced errors or otherwise had their requests to close

    their accounts and to fully withdraw their funds cancelled.

            161.    Failure to deliver (“FTD”) occurs when one party in a trading contract does not

    deliver on its obligations. For example, recall a short seller borrows a security at a price in hopes

    its price will decrease. If, however, a short seller fails to locate and borrow a security to deliver

    to a buyer, then that transaction is recorded as a failure to deliver.

            162.    Increases in FTDs are indicative of naked short selling. That is because naked

    short sellers do not actually possess the security they are supposed to “borrow.” Thus, when a

    buyer then seeks to purchase the borrowed security, the short seller cannot deliver because the

    short seller never possessed the security in the first place and fails to deliver on its obligations.

            163.    Increases in FTDs are also consistent with market makers taking on increased

    short positions. As market makers take the other side of buy orders routed to them, they borrow

    securities to sell short, developing a substantial short position themselves.



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           164.    This practice of shorting stock that is not borrowable is largely inaccessible to

    Retail Investors, i.e., Retail Investors cannot engage in naked short selling. However, market

    makers are able to short stock that is not borrowable by utilizing a market maker exemption.

           165.    FTDs in the Relevant Securities also rose dramatically in the period leading up to

    January 28, 2021, a phenomenon consistent with both increasing short interest by Citadel

    Securities and unnamed coconspirators as well as with improper trading in the form of selling

    securities without identifying stocks to borrow to deliver to the retail investors who bought them.

           166.    The figure below summarizes FTDs for AMC from January 1, 2021 through

    February 9, 2021:




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           167.   The figure below summarizes FTDs for BBBY from January 1, 2021 through

    February 9, 2021:




           168.   The figure below summarizes FTDs for BB from January 1, 2021 through

    February 9, 2021:




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           169.   The figure below summarizes FTDs for EXPR from January 1, 2021 through

    February 9, 2021:




           170.   The figure below summarizes FTDs for GME from January 1, 2021 through

    February 9, 2021:




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           171.   The figure below summarizes FTDs for KOSS from January 1, 2021 through

    February 9, 2021:




           172.   The figure below summarizes FTDs for NOK from January 1, 2021 through

    February 9, 2021:




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           173.   The figure below summarizes FTDs for TR from January 1, 2021 through

    February 9, 2021:




           174.   The figure below summarizes FTDs for TRVG from January 1, 2021 through

    February 9, 2021:




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           175.    The dramatic increase in short positions was counterintuitive. Chatter in various

    financial discussion forums indicated high excitement and motivation on the part of Retail

    Investors to continue investing in the Relevant Securities. Many Retail Investors announced

    plans to increase long positions in the Relevant Securities on January 28, 2021, which would

    mean the prices for the Relevant Securities were likely to go further up, not down.

                                     The Events of January 28, 2021

           176.    At approximately 1:00 a.m. EST on January 28, 2021, Defendant Robinhood

    circulated an email to its users with the subject line “[a]n important update on your expiring

    options,” informing them that purportedly due to unprecedented volatility surrounding GME and

    AMC, and in a purported effort to help reduce risk, all GME and AMC options with expirations

    of January 29, 2021, would be set to closing transactions only. This meant that customers could

    close out their positions but could not make new investments.

           177.    The email was silent as to any restrictions placed on trading shares of GME,

    AMC, or other securities.

           178.    At 5:11 a.m. EST, Robinhood received an email from NSCC indicating that

    Robinhood had a deficit of roughly $3 billion dollars.




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           179.    Shortly thereafter, Robinhood, in furtherance of the conspiracy, moved the

    Relevant Securities to position close only (“PCO”), i.e., Robinhood users could only sell shares

    in the Relevant Securities and were foreclosed from buying them.




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           180.   Gretchen Howard, Robinhood’s Chief Operating Officer, messaged internally that

    Robinhood has a “major liquidity issue,” and that it was moving the Relevant Securities to PCO.




           181.   While Robinhood would ultimately attribute its decision to move the Relevant

    Securities to PCO to the NSCC’s increased collateral requirement, Robinhood was able to meet

    the revised deposit requirement before the stock market opened on January 28, 2021. Moreover,

    Robinhood made the decision to PCO the Relevant Securities with knowledge that it was not in

    serious danger of being shut down by the NSCC.


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           182.    In an internal Robinhood Slack chat, David Dusseault, President and Chief

    Operating Officer of Robinhood Financial, says “we are to[sic] big for them to actually shut us

    down” in response to queries about the NSCC.




           183.    Indeed, within hours of NSCC’s initial margin call, NSCC reduced Robinhood’s

    deposit requirement by nearly half. Prior to the market opening, Robinhood successfully

    negotiated that its margin requirements be reduced even further to $733,976,926.71.

           184.    The fact that the NSCC reduced Robinhood’s deposit requirement is remarkable,

    in particular, because of Robinhood’s direct involvement in negotiating with the NSCC. Indeed,

    some experts have described the fact that Robinhood was able to negotiate down its margin

    requirements with the NSCC as unheard of.

           185.    Robinhood was subsequently able to meet its revised NSCC deposit requirement

    shortly after 9.00 a.m. EST. Nevertheless, as the markets opened on January 28, 2021, Retail

    Investors woke up to find that Robinhood had suddenly and without notice restricted their ability


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    to purchase the Relevant Securities.

            186.   Robinhood users could no longer purchase the Relevant Securities. The “buy”

    button was deactivated as a feature, leaving users with no option but to sell or hold their

    securities.

            187.   Robinhood addressed the “[w]hy don’t I see a buy button?” question on its

    website here: https://robinhood.com/us/en/support/articles/why-dont-i-see-a-buy-button/. It

    offered three reasons for the buy button being unavailable on a user’s account. The three reasons

    are: 1) “It’s a foreign stock, which we don’t support.” 2) “It’s an over-the-counter (OTC) stock or

    a warrant, which Robinhood generally doesn’t support”; and 3) “It’s a stock undergoing

    corporate action. The stock will be tradable again once the corporate action has been finalized.”

    Robinhood’s explanations did not correspond with reality, however, because the Relevant

    Securities were not foreign stocks, OTC stocks or stocks undergoing corporate actions during the

    Class Period. Robinhood did not warn users of any situation where it could prevent users from

    buying stock out of its own volition. This explanation was incomplete, inaccurate, untrue, and

    did not disclose the conspiracy underlying the change.

            188.   Worse, Retail Investors who had queued purchase orders overnight on January

    27, 2021 to purchase stock when the markets opened on January 28, 2021 discovered that their

    purchase orders had been cancelled without their consent. Some received messages that claimed

    “[y]ou canceled your order” despite the fact that they did no such thing.

            189.   The restrictions on trading took different forms but had the same effect.

    Robinhood users were prohibited from opening new long positions in the Relevant Securities. In

    other words, Retail Investors were not permitted to purchase new positions but only permitted to

    sell their long positions and not buy more.



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            190.   On Robinhood’s web platform and mobile app, Retail Investors were blocked

    from searching for the Relevant Securities’ ticker symbols.




            191.   News of Robinhood’s trading restrictions soon came to light via widespread

    media coverage and through Robinhood’s own admissions.

            192.   Robinhood tweeted that, purportedly, in light of then current market volatility, it

    was restricting transactions for certain securities to position closing only, including $AMC and

    $GME.

            193.   Robinhood subsequently updated its website with a list of securities set to

    position-closing only, meaning that the Retail Investors could sell and close their positions in

    these securities, but they were prohibited from opening new positions. The securities included,

    inter alia, AMC, BB, BBBY, EXPR, GME, KOSS, NOK, TR and TRVG.

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            194.    Robinhood attributed the aforesaid restrictions to ongoing market volatility and

    other pretextual explanations while not disclosing its communications with other members of the

    conspiracy. Robinhood, acknowledged that it had canceled open orders for the listed securities

    and also disabled the ability for users to search for these securities in Robinhood’s mobile app.

    Robinhood’s January 28 blog post titled, Keeping Customers Informed Through Market

    Volatility, also attributed the restrictions to “significant market volatility” and further disclosed

    that Robinhood raised margin requirements for certain securities.

            195.    Following Robinhood’s lead, later on January 28, 2021, other broker-dealers,

    including Ally, Dough, Public.com, SoFi, Stash, Tastyworks and Webull implemented purchasing

    restrictions in some, but not all, of the Relevant Securities. Many of these introducing brokerages

    reported that their clearing firm, Apex, was responsible for implementing the restrictions, but

    unlike Robinhood’s purchasing restrictions, which lasted throughout the entirety of the trading

    day and beyond, the restrictions imposed by Apex were only temporary. Indeed, in a matter of

    hours, the foregoing brokerages all reported that the purchasing restrictions had been lifted. For

    example, Stash notified its users of the restrictions at 12:13 p.m., and by 3:16 p.m., it announced

    that the restrictions had been lifted.

            196.    Indeed, Robinhood was actively monitoring the actions of other broker-dealers to

    insure Robinhood would not be alone in restricting trading on January 28, 2021. Internal

    Robinhood documents include emails and messages from other broker-dealers to their customers

    announcing their restrictions on trade that Robinhood otherwise would not have had access to.

            197.    As intended, pursuant to the illegal anticompetitive scheme, Robinhood’s

    prohibition on buying any new Relevant Securities, led to a massive sell-off, which resulted in a

    steep decline in the stock prices of the Relevant Securities.



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           198.    For example, on January 28, 2021, GME shares reached an intraday peak of

    $483.00—before plunging down to $112.25, eventually closing at $193.60, a 44.29% drop from

    GME’s close of $347.51 just one day prior. Similarly, shares of AMC plummeted 56.63%, shares

    of EXPR fell 50.79% and shares of BBBY fell 36.40%. Retail Investors who wanted to take

    advantage of the price drop to buy more shares of the Relevant Securities were unable to due to

    the prohibition on purchasing.

           199.    The figures below (reproduced from above for ease of reference) illustrate the

    share prices of Relevant Securities from December 28, 2020 through January 29, 2021, and show

    the rise in share price attributable to the Retail Investors continued purchase of the stocks, as

    well as the sharp decrease in share price resulting from the restrictions imposed by the Brokerage

    Defendants on or about January 28, 2021.

           200.    The figure below summarizes the prices of GameStop’s stock from December 28,

    2020 through January 29, 2021.




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           201.   The figure below summarizes the prices of Nokia Corporation’s stock from

    December 28, 2020 through January 29, 2021.




           202.   The figure below summarizes the prices of AMC Entertainment Holdings, Inc.’

    stock from December 28, 2020 through January 29, 2021.




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           203.   The figure below summarizes the prices of Koss Corporation’s stock from

    December 28, 2020 through January 29, 2021.




           204.   The figure below summarizes the prices of Trivago stock from December 28,

    2020 through January 29, 2021.




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Case 1:21-md-02989-CMA Document 451 Entered on FLSD Docket 01/20/2022 Page 59 of 127




           205.   The figure below summarizes the prices of Bed Bath & Beyond stock from

    December 28, 2020 through January 29, 2021.




           206.   The figure below summarizes the prices of Express stock from December 28,

    2020 through January 29, 2021.




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Case 1:21-md-02989-CMA Document 451 Entered on FLSD Docket 01/20/2022 Page 60 of 127




           207.   The figure below summarizes the prices of Tootsie Roll Industries Inc.’s stock

    from December 28, 2020 through January 29, 2021.




           208.   The figure below summarizes the prices of BlackBerry’s stock from December

    28, 2020 through January 29, 2021.




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           209.    The prohibition on purchasing stock did not apply to all investors. Citadel

    Securities was not restricted from purchasing the Relevant Securities. While Retail Investors

    were excluded from purchasing securities at the reduced rate, investment firms and market

    makers such as Citadel Securities holding short positions were permitted to cover their short

    positions by buying securities at the artificially reduced price, including from dark pools such as

    Citadel Securities’s own internalized exchanges.

           210.    As the Retail Investors sold their shares in the Relevant Securities due to the

    trading restrictions, Citadel Securities internalized those transactions and took the other side of

    those sell orders, i.e., they bought the shares the Retail Investors were selling—at an artificially

    reduced price—to close their short positions. In doing so, Citadel Securities was able to buy and

    return the borrowed securities they had sold short.

                          Collusion Between Robinhood and Citadel Securities

           Citadel Securities Established Substantial Short Positions in the Relevant Securities

           211.    Citadel Securities developed large short positions in the Relevant Securities in the

    days leading up to and including January 28, 2021, as a result of its regular market making

    activities. As stock prices rise in an environment driven by retail trader buying activity, market

    makers typically take the other side of the retail traders’ stock buys and as a result the market

    makers develop short positions in the stocks that the retail traders have been buying. Traditional

    market makers would try to avoid building a short position and remain market neutral in such an

    environment by buying back shares that the market makers have sold short, while aiming to

    capture the bid and ask spread to profit. However, a different type of market maker will integrate

    market making and speculative position taking in such an environment, which would allow the

    market maker to take on more trading volume by assuming more risk. It can be difficult for a



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    market maker to both remain neutral and handle high order flow, and it can be natural for more

    aggressive market makers to take on more risk. Thus, many larger market makers become a

    hybrid of a market maker and a proprietary trader.

           212.    Market makers that engage in hybrid market making and proprietary trading, in an

    environment such as that seen in late January 2021 where retail traders are continually buying

    certain stocks, will see the size of the market makers’ short positions grow as they take the other

    side of the retail trading activity and do not adhere to a strictly market neutral approach. As those

    market makers’ short positions increase, the short positions will at some point begin to reach the

    market makers’ risk limits. This is particularly the case when there are unidirectional market

    flows, i.e., when a stock is “breaking out,” and there are no correlated instruments with which

    the market makers can hedge their positions. In such a time, it may be impossible for the market

    makers to buy back all the shares that the market makers have sold short without locking in a

    loss. A market maker is then faced with the choice of either allowing a continued speculative

    buildup of a short position, presumably because the market maker expects the market to

    subsequently reverse, or closing out at the position at loss. Market makers that hold significant

    short positions that continue to build up during break-out conditions where a security has no

    natural hedges are clear examples of the hybrid model where speculative position taking is

    embedded in a market maker operation.

           213.    As market makers build their short positions under the dynamic described above,

    the market makers will approach the market makers’ risk limits. When a market maker

    approaches the market maker’s risk limit, the market maker will be faced with the decision to

    either stop selling and begin buying back the shorted stock at a loss, or to work with the firm’s

    management and risk group to increase the firm’s risk limits.



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           214.    For a market maker that chooses not to increase the risk limits and instead routes

    orders away to the exchange, that market maker will face dramatic adverse consequences for the

    following two reasons.

           215.    The first reason is that market makers have an incentive to keep the retail traders’

    buy orders off the exchange to prevent the buy orders from driving further up the price of the

    securities that the retail traders are buying. For example, directing an order of $500,000 for a

    given security towards a public exchange would increase the demand for that security on the

    exchange and drive the security’s price up. If the market maker had already developed significant

    short positions in that security from the dynamic described above, then any increase in the price

    of the security would make it difficult for the market maker to buy back that security and close

    the market maker’s short positions, and the market maker would experience mark to market

    losses as the security moved upward against the market maker’s short position.

           216.    The second reason is that these market makers have arrangements whereby the

    market makers pay retail brokers for payment for order flow. Under these arrangements, the

    market makers pay retail brokers to direct trades towards the market makers, thereby creating

    volume for the market makers’ market making services. If a market maker is unable to take the

    other side of a trade itself internally, the market maker must instead route the trade to the

    exchange. In doing so, the market maker then pays a “taker fee” for each trade that the market

    maker directs to an exchange. In other words, the market maker must realize a mark to market

    loss for each trade that the market maker directs away from itself to an exchange. This loss may

    amount to roughly one-half of one cent per share, when payments to the broker and exchange

    transactions fees are considered.

           217.    Those two reasons were strong enough incentives to not route orders away to an



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    exchange and the reasons that led Citadel Securities to build large short positions in the Relevant

    Securities in the days leading up to January 28, 2021.

           218.    Market makers that continue to grow large short positions in the way described

    above may at some point cross the line from market making activity to speculative proprietary

    trading as the market makers begin to take directional bets on the direction of the market. Such

    speculative proprietary trading violates SEC Regulation SHO, which allows market makers that

    engage in bona fide market making activities to benefit from an exception to the “locate” rules

    that would otherwise require a broker-dealer to locate stock before selling the stock short.

           219.    Regulation SHO, which was promulgated in 2004, only applies to bona fide

    market making activities, and the preamble to Regulation SHO indicates that “[b]ona-fide market

    making does not include activity that is related to speculative selling strategies or investment

    purposes of the broker-dealer and is disproportionate to the usual market making patterns or

    practices of the broker-dealer in that security.” (69 FR at 48015). A significantly large short

    position developed by a market maker should be considered evidence that the market maker

    actually has a speculative view on the direction that the market will move and that the market

    maker has chosen not to maintain a neutral position. When large market makers such as Citadel

    Securities develop such large short positions, those large market makers divert from bona fide

    market making activities within the meaning of Regulation SHO by not keeping a neutral book

    and instead taking a bet that the market will drop. Such market makers are then no longer

    engaged in a bona fide market making activity within the meaning of Regulation SHO but are

    instead engaged in “speculative selling strategies” that are “disproportionate to the usual market

    making patterns or practices” of the market maker. Notably, the SEC has successfully pursued

    actions against several market makers for violating Regulation SHO through similar speculative



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    short selling activities that did not constitute bona fide market making activities. See, e.g.,

    https://www.sec.gov/litigation/admin/2016/34-79579.pdf and

    https://www.sec.gov/litigation/admin/2012/34-66283.pdf.

               220.   Citadel Securities built substantial short positions in the Relevant Securities in

    late January 2021 through the dynamic described above. Since short positions are not disclosed

    on Form 13F, though, such positions are not publicly disclosed.

               Robinhood and Citadel Securities’s PFOF Relationship Was Ripe for Collusion

               221.   The highly lucrative PFOF relationship between Robinhood and Citadel

    Securities accounts for a large majority of Robinhood’s profits (Citadel Securities was

    responsible for over $141 million of the approximate $330 million that Robinhood received as

    payment for order flow in the first quarter of 2021 alone) and is what allows Robinhood to

    provide zero-commission trading to its users. By paying Robinhood for its order flow, Citadel

    Securities, in turn, is able to earn a profit through the spread between the securities bid and offer

    price and is also afforded the opportunity to profit from the large amount of trading data

    collected by Robinhood.

               222.   In short, Robinhood monetizes its users’ orders through payment for order flow, in

    particular with Citadel Securities, which generates a lion’s share of Robinhood’s revenue and

    profits.

               223.   PFOF relationships are riddled with conflicts. According to the SEC, payment for

    order flow can “create conflicts of interest for brokers because of the tension between the firms’

    interests in maximizing payment for order flow or trading profits generated from internalizing

    their customers’ orders, and their fiduciary obligation to route their customers’ orders to the best

    markets.”



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            224.   Citadel itself recognized that payment for order flow relationships created

    conflicts of interests for brokers. In an April 13, 2004 letter to the SEC from Citadel Investment

    Group, L.L.C., the precursor entity to Citadel LLC, which is an affiliate entity of Citadel

    Securities, Citadel acknowledged that “[t]he practice of payment for order flow creates serious

    conflicts of interest and should be banned.” Specifically, Citadel argued that “[t]his practice [i.e.,

    payment for order flow] distorts order routing decisions, is anti-competitive, and creates an

    obvious and substantial conflict of interest between broker-dealers and their customers.”

            225.   Not only does the PFOF relationship between Citadel Securities and Robinhood

    create serious conflicts of interest, but it also fosters an environment ripe for illegal coordination.

            Communications between Robinhood and Citadel Securities

            226.   Citadel Securities was able to communicate with Robinhood swiftly and

    effectively because of their pre-existing relationship. Indeed, high-level executives of Citadel

    Securities regularly communicated with and coordinated with high-level executives of

    Robinhood in the lead up to, during and after the restrictions imposed on or around January 28,

    2021.

            227.   For example, on January 20, 2021,                     , Head of Execution Services

    for Citadel Securities, and Josh Drobnyk, the newly hired Vice President of Corporate Relations

    and Communications for Robinhood, agreed to communicate.                   and Drobnyk had a prior

    relationship through Drobnyk’s employment at FINRA when                   served on FINRA’s board.

            228.   During this communication,              extended a proposition to Drobnyk. Drobnyk

    discussed with Dan and Lucas, likely Daniel Gallagher and Lucas Moskowitz, Robinhood’s chief

    legal officer and deputy general counsel respectively and agreed to revert to             “by early

    next week at the latest.”



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           229.            responded it was “good to reconnect and very happy that we will be

    working together.” Additionally,        responded for Drobnyk to “just let us know if interested

    and who the main contact should be.”




           230.   On Monday, January 25, 2021, Robinhood, through Drobnyk emails                :

    “We are on board.” Drobnyk says Lucas Moskowitz, Robinhood’s Deputy General Counsel,

    Moskowitz, would be the main point of contact for Robinhood.




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           231.           in turn extends an invitation to Moskowitz to “chat” and expressed that

    “we obviously have a strong relationship between the two firms.”

           232.           and Moskowitz then arranged a call for 11 a.m. EST on January 26, 2021.




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           233.    While the details of these communications have not yet been disclosed, it is clear

    that these high-level representatives of Citadel Securities and Robinhood reached an explicit

    agreement on January 25, 2021, and each took affirmative steps in furtherance of the illicit

    scheme.

           234.    Notably, on January 26, 2021, Robinhood Securities President and COO James

    Swartwout alerted others, including                       , Robinhood’s Head of Global

    Securities Management, via an internal chat that Robinhood was moving GameStop to 100%



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    margin the next day, stating “I sold my AMC today. FYI – tomorrow we are moving GME to

    100% – so you are aware.” The 30-year industry veteran’s actions indicate knowledge that

    Robinhood was going to restrict trading in certain securities and that any such restrictions would

    lead to a sharp decline in price.




           235.    On January 27, 2021, the day before the restrictions were implemented, high level

    employees of Citadel Securities and Robinhood had numerous communications with each other

    that indicate that Citadel Securities applied pressure on Robinhood.

           236.    Citadel’s business was critical to Robinhood’s survival. Robinhood’s entire

    business model rested on its payment for order flow income, and Citadel contributed nearly half

    of Robinhood’s PFOF income—making it Robinhood’s most valuable customer, business

    partner, and stakeholder. Robinhood was under tremendous pressure from Citadel to implement

    one-sided restrictions that benefited Citadel and other market makers like itself.

           237.    In an internal Slack chat conversation, Gretchen Howard, Robinhood’s Chief

    Operating Officer, informs Vlad Tenev that “Dan and I are joining Jim at 5pm on a call with


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    Citadel.” Dan and Jim likely refer to Dan Gallagher and Jim Swartwout, President and Chief

    Operating Officer of Robinhood Securities. Citadel Securities had requested to speak that

    evening. Howard indicated that she believed Citadel Securities would make demands on limiting

    payment for order flow.

           238.    As described above, Robinhood makes significant sums from selling order flow,

    and in particular, selling order flow to Citadel Securities.

           239.    Tenev muses that “Maybe this would be a good time for me to chat with Ken

    griffin [sic]” and tells Howard, “You guys can mention that.”




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           240.    Shortly thereafter, in an internal chat,         , Senior Director of Clearing

    Operations at Robinhood tells Swartwout, “[a]necdotal evidence that several ‘very large’ firms

    are having really bad nights too.”




           241.    Swartwout responds that “everyone is. you wouldnt [sic] believe the convo we

    had with Citadel. total mess.”

           242.    At 8:16 p.m., Swartwout emails                      at Citadel Securities looking

    for “new Citadel numbers.”               informs Swartwout at 9:31 p.m. that the numbers were

    “[f]irming up right now in light of the follow up conversation between Gallagher and            .”




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            243.    At 8:29 p.m.,             , Citadel Securities’s Vice President of Business

    Development, emailed Robinhood personnel including Swartwout that                    , “whom Vlad has

    met before, is available until 10pm EST to speak to Vlad.”           offers to set up a call.

            244.    Swartwout, in turn responds minutes later, “Because of our partnership, Vlad

    would like to have a discussion with Ken [Griffin] at some point, just given our relationship. Not

    specific to this crazy issue.”

            245.    Swartwout later cryptically tells        , “I have to say I am beyond disappointed in

    how this went down. It’s difficult to have a partnership when these kind of things go down this

    way.”


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           246.    The heated discussions between Robinhood and Citadel Securities, which were

    described as a “a total mess” and which resulted in Robinhood being “beyond disappointed,”

    illustrate that Robinhood and Citadel Securities were engaging in more than regular business

    communications prior to the implementation of the trading restrictions. Given that Robinhood’s

    relationship with Citadel Securities was critical to its bottom line and thus continued survival,

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    these communications arguably demonstrate that Robinhood was upset that its PFOF would be

    limited when Citadel Securities demanded that Robinhood restrict trading to allow Citadel

    Securities to cover its short positions.

            247.    Defendants’ conspiratorial acts resulted in lockstep price movements of the

    Relevant Securities.

            248.    As demonstrated by the charts below, the stock prices of the Relevant Securities

    moved in parallel fashion throughout January 28, 2021. The charts reveal a coordinated rise in

    the prices of the Relevant Securities from approximately 11:00-11:30 a.m., immediately after the

    Relevant Securities took a steep dive after the markets opened. At that time, few if any Retail

    Investors were permitted to purchase positions in the Relevant Securities and only institutional

    investors such as hedge funds and market makers, including Citadel Securities, were permitted to

    purchase.




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                     The Anticompetitive Scheme Continued After January 28, 2021

             249.   Partly as a result of criticism, as the market opened on January 29, 2021,

    Robinhood had lifted its purchasing restriction and permitted Retail Investors to open new long

    positions in the Relevant Securities.

             250.   Even in the face of increased scrutiny, however, Defendants continued their

    anticompetitive scheme to suppress the price of the Relevant Securities.

             251.   Although Robinhood permitted purchases of the Relevant Securities, those

    purchases were heavily restricted, resulting in continuing suppression of the Relevant Securities’

    value.

             252.   Moreover, Robinhood restricted trading of long option contracts and announced to

    Retail Investors they would close out their profitable option positions automatically.

             253.   Robinhood also placed limitations on the number of new positions its users could

    open by capping the total number of shares and options contracts an individual could hold in

    certain securities. Nevertheless, Retail Investors, still believing in the value of the assets,

    continued to purchase the Relevant Securities once they were permitted.




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           254.    On January 29, 2021, Robinhood placed limits on the number of Relevant

    Securities its customers could purchase. With respect to GameStop, Robinhood first restricted

    Retail Investors to purchasing only two shares of GameStop, which resulted in a rapid decline in

    the value of GameStop.




           255.    The value of the Relevant Securities began to regain the value lost in the days

    immediately prior as a result of Defendants’ coordinated action to suppress the value of the

    stocks. Because Citadel Securities, hedge funds, and other unnamed conspirators still had

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    distressed short positions outstanding, this threatened their ill-gotten gains achieved the day

    before. Robinhood then imposed a one share limit on the Relevant Securities, including GME

    and AMC further causing the value of the stocks to decrease.




           256.    Each artificial limitation in the amount of securities a Retail Investor could

    purchase correlated with a subsequent decrease in share value. As purchases of the Relevant

    Securities were limited, more investors were pressured to sell who otherwise would not have in

    the presence of a free and open market.

           257.    In order to disguise their illegal agreement after the restrictions on or around

    January 28, 2021, high-level executives and communications professionals at Citadel Securities

    and Robinhood communicated to coordinate their messaging.




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              258.   On January 30, 2021, Citadel Securities’s              sent an email to Josh

    Drobnyk, Robinhood’s Vice President of Corporate Communications. In this email,

    introduced Drobnyk to               , who         described as the person “running point on this

    narrative for us.”          indicated he “wanted to generally coordinate messaging.” Additionally,

              cc’d two individuals he described as “our GCs” “for privilege.”

              259.          , who was on a flight, arranged to “connect” with Drobnyk once

    landed.          asked if the issue was “urgent” or “super urgent.”

              260.          called Drobnyk twice after the flight landed.




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           261.    Robinhood ultimately continued to impose limitations on certain securities

    through February 4, 2021, despite announcing on January 29, 2021, that it raised more than $1

    billion to help meet rising demands for cash and shore up its balance sheet. The money raised

    was on top of $500 million Robinhood accessed through credit lines to ensure it had the capital

    required to keep allowing its clients to trade the Relevant Securities. On February 1, 2021,

    Robinhood announced that it raised an additional $2.4 billion in funding on top of the $1 billion

    it raised the previous week.

           262.    On January 31, 2021, Robinhood’s CEO Tenev published an opinion piece in

    USA TODAY. Despite previously citing market volatility as the reason for Robinhood’s decision

    to impose the trading restrictions, Tenev now stated Robinhood’s decision was made based on

    clearinghouse-mandated deposit requirements that it claimed were “increased ten-fold.”

           263.    However, Tenev’s excuse that Robinhood restricted trading because of NSCC

    deposit requirements increasing ten-fold was merely pretext as Robinhood likely knew it had

    liquidity issues before the NSCC margin call and conspired to restrict trading in the Relevant

    Securities before the NSCC margin call.

           264.    On February 18, 2021, Robinhood’s CEO Tenev testified before the U.S. House

    Committee on Financial Services. Tenev’s prepared statement disclosed that Robinhood

    Securities’ operations team made the decision to impose trading restrictions on the Relevant

    Securities between 6:30 and 7:30 a.m. EST. Although Robinhood had been attributing its trading

    restrictions to increased clearinghouse-mandated deposit requirements, Tenev revealed that

    Robinhood met its revised deposit requirements a little after 9:00 a.m. EST on January 28, 2021.

    Nevertheless, Robinhood held fast to the conspiracy to restrict purchases of the Relevant

    Securities when the market opened, continued to impose restrictions for the entirety of the



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    trading day, and limited the number of stocks and option contracts its users could acquire through

    February 4, 2021.

                     Data Reveals that Shorts Exited Their Exposed Short Positions

            265.    Publicly available data reveals that short interests significantly decreased as a

    result of the trading restrictions described herein, with the sharpest and most significant

    decreases occurring after the coordinated restrictions on January 28, 2021.

            266.    While it is difficult to determine who owns a particular short interest at any

    particular time and when that investor exits their short position, entities such as FINRA and

    governmental organizations such as the SEC regularly aggregate and report certain statistics

    related to short interests.

            267.    FINRA member firms are required to report their short positions as of settlement

    twice every month: on the 15th (or the preceding business day if the 15th is not a business day)

    and the last business day of the month. FINRA compiles the data and publishes the total short

    interest on the 8th business day after the reporting settlement date.

            268.    Short interest is defined as the number of shares of a security that have been sold

    short but have not yet been covered or closed out and may be expressed as a number or

    percentage.

            269.    Based on published short interest rates, aggregate short interest in the Relevant

    Securities, a strong indicia of bearish market sentiment, generally climbed in the reporting

    periods before the restrictions on and around January 28, 2021 and dropped precipitously as of

    January 29, 2021 and continuing through the first few weeks of February, i.e., short interest

    plummeted during the periods including the trading restrictions indicating short holders had

    exited their short positions during or soon after the trading restrictions. While some of the



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    Relevant Securities reflect increasing short interest as of the report on January 29, 2021, because

    the reports do not require investors to disclose when those short positions were purchased, the

    data could capture large openings of short interest before January 28, 2021.

           270.      The below are charts of the estimated total short interest for the Relevant

    Securities as reported by Market Beat from December 2020 through February 2021:

                                AMC Entertainment Holdings, Inc. (AMC)
     Report Date               Total Shares Sold        Dollar Volume Sold       Change from
                               Short                    Short                    Previous Report
     Dec. 15, 2020             38,080,000               $121.48 million          +13.6%
     Dec. 31, 2020             38,990,000               $84.22 million           +2.4%
     Jan. 15, 2021             44,670,000               $97.38 million           +14.6%
     Jan. 29, 2021             37,720,000               $325.52 million          -15.6%
     Feb. 12, 2021             48,130,000               $270.01 million          +27.6%
     Feb. 26, 2021             55,490,000               $460.01 million          +15.3%


                                            BlackBerry Ltd. (BB)
     Report Date               Total Shares Sold        Dollar Volume Sold       Change from
                               Short                    Short                    Previous Report
     Dec. 15, 2020             34,570,000               $285.20 million          +16.8%
     Dec. 31, 2020             39,560,000               $263.87 million          +14.4%
     Jan. 15, 2021             43,490,000               $396.19 million          +9.9%
     Jan. 29, 2021             20,410,000               $299.01 million          -53.1%
     Feb. 12, 2021             32,350,000               $403.08 million          -58.5%
     Feb. 26, 2021             43,030,000               $455.26 million          -33.0%




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                             Bed Bath & Beyond Inc. (BBBY)
     Report Date        Total Shares Sold       Dollar Volume Sold   Change from
                        Short                   Short                Previous Report
     Dec. 15, 2020      72,770,000              $1.37 billion        +9.3
     Dec. 31, 2020      76,180,000              $1.42 billion        +4.7%
     Jan. 15, 2021      74,890,000              $2.05 billion        -1.7%
     Jan. 29, 2021      31,770,000              $1.07 billion        -57.6%
     Feb. 12, 2021      26,240,000              $723.96 million      -17.4%
     Feb. 26, 2021      25,460,000              $669.34 million      -3.0%

                                     Express, Inc. (EXPR)
     Report Date        Total Shares Sold      Dollar Volume Sold    Change from
                        Short                  Short                 Previous Report
     Dec. 15, 2020      6,970,000              $7.25 million         +9.5%
     Dec. 31, 2020      8,020,000              $7.59 million         +15.1%
     Jan. 15, 2021      7,220,000              $9.24 million         -10.0%
     Jan. 29, 2021      8,560,000              $40.23 million        +18.6%
     Feb. 12, 2021      5,930,000              $16.72 million        -30.7%
     Feb. 26, 2021      4,560,000              $13.63 million        -23.1%


                                      GameStop (GME)
     Report Date        Total Shares Sold       Dollar Volume Sold   Change from
                        Short                   Short                Previous Report
     Dec. 15, 2020      68,130,000              $866.61 million      +0.2%
     Dec. 31, 2020      71,200,000              $1.37 billion        +4.5%
     Jan. 15, 2021      61,780,000              $2.47 billion        -13.2%
     Jan. 29, 2021      21,410,000              $4.14 billion        -65.3%
     Feb. 12, 2021      16,470,000              $841.62 million      -23.1%
     Feb. 26, 2021      14,200,000              $1.54 billion        -13.8%




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                                  Koss Corporation (KOSS)
     Report Date        Total Shares Sold      Dollar Volume Sold    Change from
                        Short                  Short                 Previous Report
     Dec. 15, 2020      700                    $1,715.00             -83.3%
     Dec. 31, 2020      590,300                $2.18 million         +84,228.6%
     Jan. 15, 2021      12,800                 $39,296.00            -97.8%
     Jan. 29, 2021      756,100                $31.73 million        +5,807.0%
     Feb. 12, 2021      289,000                $4.60 million         -61.8%
     Feb. 26, 2021      598,700                $12.89 million        -107.2%


                                     Nokia Corp. (NOK)
     Report Date        Total Shares Sold       Dollar Volume Sold   Change from
                        Short                   Short                Previous Report
     Dec. 15, 2020      48,240,000              $192.96 million      -5.7%
     Dec. 31, 2020      50,520,000              $196.52 million      +4.7%
     Jan. 15, 2021      59,550,000              $243.56 million      +17.9%
     Jan. 29, 2021      56,840,000              $266.58 million      -4.6%
     Feb. 12, 2021      16,470,000              $841.62 million      -23.1%
     Feb. 26, 2021      48,270,000              $197.91 million      -15.1%


                              Tootsie Roll Industries, Inc. (TR)
     Report Date        Total Shares Sold       Dollar Volume Sold   Change from
                        Short                   Short                Previous Report
     Dec. 15, 2020      7,260,000               $223.03 million      -1.4%
     Dec. 31, 2020      7,390,000               $219.34 million      +1.8%
     Jan. 15, 2021      7,400,000               $222 million         +0.1%
     Jan. 29, 2021      5,010,000               $194.29 million      -32.3%
     Feb. 12, 2021      3,960,000               $122.64 million      -21.0%
     Feb. 26, 2021      4,020,000               $128.36 million      +1.5%




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                                           Trivago N.V. (TRVG)
     Report Date               Total Shares Sold       Dollar Volume Sold        Change from
                               Short                   Short                     Previous Report
     Dec. 15, 2020             2,410,000               $5.78 million             -18.0%
     Dec. 31, 2020             1,990,000               $4.48 million             -17.4%
     Jan. 15, 2021             1,940,000               $4.33 million             -2.5%
     Jan. 29, 2021             976,500                 $2.42 million             -49.7%
     Feb. 12, 2021             2,900,000               $7.74 million             +197.0%
     Feb. 26, 2021             2,580,000               $10.73 million            -11.0%

           271.      The data shows that short interest generally declined sharply after Robinhood’s

    trading restrictions on January 28, 2021 and continued to decrease into February.

           272.      According to Reuters, short interest in GameStop ultimately declined to an

    estimated 15% as of March 24, 2021 from a peak of 141% in the first week of January.

           273.      FINRA also aggregates dark pool trading activity. Generally, FINRA classifies

    over-the-counter (“OTC”; OTC is generally the trading of securities between two counterparties

    outside of formal exchanges and without the supervision of an exchange regulator) trading data

    into two categories, alternative trading systems (“ATS”), and OTC non-ATS dealers. Both ATS’s

    and OTC non-ATS’s are considered dark pools or dark exchanges due to their lack of

    transparency.

           274.      As mentioned above, dark pools are the preferred trading venue for large

    institutional investors largely because they are not transparent. Additionally, Retail Investors

    generally do not have access to trading on dark pools.

           275.      Additionally, the internal exchanges market makers such as Citadel Securities use

    to internalize order executions are also dark exchanges.

           276.      FINRA data shows notable and significant increases in dark pool trading activity



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    for each of the Relevant Securities on and around January 28, 2021, captured in the data tables

    below in the week beginning January 25, 2021.

           277.     Below are the trading data for ATS and OTC non-ATS as published by FINRA for

    the Relevant Securities for the months of December 2020 through February 2021.

                             AMC Entertainment Holdings Inc. (AMC)
                                                       OTC (Non-ATS)
                            ATS Issue Data
                                                       Issue Data
               Week Starting Total Shares Total Trades Total Shares Total Trades
                  12/7/2020     3,892,732        18,682       67,419,270       129,817
                  12/14/2020    18,391,507       46,178      104,778,002       202,961
                  12/21/2020    11,346,974       24,141       33,528,313        82,458
                  12/28/2020    16,302,709       26,755       64,304,993       117,401
                    1/4/2021    26,753,239       57,147       91,328,050       155,666
                   1/11/2021    34,838,029       52,224      190,054,425       219,454
                   1/18/2021    39,025,588      107,140      468,261,296       579,153
                   1/25/2021   163,944,634      861,814     1,316,481,677     6,387,856
                    2/1/2021    53,119,619      396,405      679,049,807      5,292,157
                    2/8/2021    19,006,375      100,007      267,479,975      1,581,292
                   2/15/2021    11,094,977       47,451      128,498,955       606,484
                   2/22/2021    57,563,861      255,961      655,595,790      2,765,472




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                                    BlackBerry Ltd. (BB)
                                                      OTC (Non-ATS)
                            ATS Issue Data
                                                      Issue Data
              Week Starting Total Shares Total Trades Total Shares Total Trades
                12/7/2020     6,741,741     28,369      52,582,544    83,413
               12/14/2020     7,390,537     29,589      42,234,476    69,413
               12/21/2020     4,080,363     16,744      22,436,470    33,445
               12/28/2020     3,328,364     18,541      14,320,357    24,573
                 1/4/2021     5,497,996     23,126      24,320,552    35,956
                1/11/2021    15,749,501     70,140     120,235,955   233,852
                1/18/2021    22,768,771    102,523     214,606,499   485,668
                1/25/2021    97,793,056    537,722     517,348,442 2,535,183
                 2/1/2021    15,853,070     71,561     115,283,157   706,823
                 2/8/2021     9,421,223     47,468      46,803,945   289,363
                2/15/2021     4,935,816     27,732      28,637,443   150,047
                2/22/2021     8,031,370     40,568      40,626,852   168,204


                               Bed Bath & Beyond Inc. (BBBY)
                                                        OTC (Non-ATS)
                              ATS Issue Data
                                                        Issue Data
                Week Starting Total Shares Total Trades Total Shares Total Trades
                  12/7/2020    5,657,584     32,668       8,876,324    22,509
                 12/14/2020 4,042,873        30,348      10,771,286    29,748
                 12/21/2020 1,750,491        13,449       5,254,166    14,276
                 12/28/2020 3,178,084        23,109       8,607,888    24,582
                   1/4/2021   11,217,626     58,775      29,015,914    89,634
                  1/11/2021    8,259,495     45,764      29,383,395    71,871
                  1/18/2021    6,835,010     38,787      25,306,634    64,126
                  1/25/2021 38,730,381 193,066 110,400,806 466,999
                   2/1/2021    5,591,490     28,687      16,197,789 103,485
                   2/8/2021    4,498,953     17,566       6,783,384    40,971
                  2/15/2021    1,599,526     14,266       2,724,684    17,053
                  2/22/2021    3,416,041     19,961       4,886,756    22,852




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                                     Express, Inc. (EXPR)
                                                        OTC (Non-ATS)
                              ATS Issue Data
                                                        Issue Data
                Week Starting Total Shares Total Trades Total Shares Total Trades
                  12/7/2020    1,380,310      5,117      10,348,509    10,888
                 12/14/2020 2,071,231         5,695       8,254,132     8,387
                 12/21/2020     409,385       2,000       4,185,373     4,102
                 12/28/2020     953,642       2,928       7,992,473     8,329
                   1/4/2021     903,858       3,041       6,556,352     6,822
                  1/11/2021    2,745,296      9,087      32,839,484    33,322
                  1/18/2021    3,192,561     11,068      29,041,757    31,091
                  1/25/2021 38,745,046 219,271 393,960,045 832,222
                   2/1/2021    5,518,566     24,966      51,136,521 169,630
                   2/8/2021    1,955,926      9,126      25,409,465    73,501
                  2/15/2021    1,483,747      7,268      16,072,575    31,354
                  2/22/2021    4,167,742     23,818      67,521,294 105,853

                                   GameStop Corp. (GME)
                                                        OTC (Non-ATS)
                              ATS Issue Data
                                                        Issue Data
                Week Starting Total Shares Total Trades Total Shares Total Trades
                  12/7/2020    4,150,662     23,690      26,137,279 107,667
                 12/14/2020 3,104,483        16,397      19,437,594    60,013
                 12/21/2020 4,900,689        28,967      35,405,726 122,854
                 12/28/2020 1,876,336        12,173      14,402,253    64,118
                   1/4/2021    3,458,092     21,807      13,926,925    63,783
                  1/11/2021 22,330,904 145,558 156,958,902 588,136
                  1/18/2021 29,392,454 206,476 170,039,730 849,773
                  1/25/2021 44,126,023 593,161 184,322,090 4,275,955
                   2/1/2021   17,913,654 392,399 109,775,294 3,417,362
                   2/8/2021    6,997,461     80,593      49,113,110 825,424
                  2/15/2021    3,905,721     45,227      21,554,348 341,014
                  2/22/2021 18,960,413 370,347 121,667,858 3,157,435




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                                  KOSS Corporation (KOSS)
                                                        OTC (Non-ATS)
                              ATS Issue Data
                                                        Issue Data
                Week Starting Total Shares Total Trades Total Shares Total Trades
                  12/7/2020       1,020         25          12,957       141
                 12/14/2020       1,053         16           7,541       110
                 12/21/2020        957          14          17,168        99
                 12/28/2020     704,028       4,886       7,693,766    24,331
                   1/4/2021      49,563        281         222,980      1,144
                  1/11/2021      19,983        175         101,229       560
                  1/18/2021      84,142        495         787,582      3,456
                  1/25/2021    4,018,164     38,573      30,297,563 227,899
                   2/1/2021    1,333,623     13,244      12,227,611 119,411
                   2/8/2021     445,988       3,444       3,053,718    28,387
                  2/15/2021     691,320       4,516       4,781,106    25,017
                  2/22/2021    3,766,876     33,228      24,262,377 157,009


                                      Nokia Corp. (NOK)
                                                        OTC (Non-ATS)
                              ATS Issue Data
                                                        Issue Data
                Week Starting Total Shares Total Trades Total Shares Total Trades
                  12/7/2020 15,304,870       37,078      58,343,774    67,572
                 12/14/2020 11,046,987       22,587      38,453,491    51,333
                 12/21/2020 6,159,632        14,672      37,235,226    47,585
                 12/28/2020 6,279,603        13,492      29,688,635    44,172
                   1/4/2021   17,024,361     27,365      53,243,415    61,097
                  1/11/2021 22,745,501       35,962      84,580,606    83,576
                  1/18/2021 14,035,810       33,249      51,579,395    62,745
                  1/25/2021 244,503,016 912,658 971,216,858 3,015,757
                   2/1/2021   54,513,067 158,502 316,724,886 1,331,964
                   2/8/2021 299,776,442 79,687 147,701,559 519,336
                  2/15/2021 14,722,906       35,643      57,872,060 199,581
                  2/22/2021 33,203,315       71,206 124,573,499 292,852




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                                   Tootsie Roll Industries, Inc. (TR)
                                                            OTC (Non-ATS)
                                  ATS Issue Data
                                                            Issue Data
                    Week Starting Total Shares Total Trades Total Shares Total Trades
                      12/7/2020     308,812        2,804      175,519       1,131
                     12/14/2020     132,678        2,076      166,570       1,263
                     12/21/2020      64,967         909        65,986       1,036
                     12/28/2020     229,091        1,890      118,505       1,394
                       1/4/2021     213,383        2,306      130,491       1,305
                      1/11/2021      78,974        1,036       91,898       1,096
                      1/18/2021     103,510        1,486      117,530       1,046
                      1/25/2021    3,042,836      17,884     2,490,108     23,595
                       2/1/2021     555,331        5,426      688,068       7,510
                       2/8/2021     147,255        1,835      282,505       2,971
                      2/15/2021     243,438        2,667      294,213       2,313
                      2/22/2021     408,039        3,555      303,286       2,759

                                         Trivago N.V. (TRVG)
                                                            OTC (Non-ATS)
                                  ATS Issue Data
                                                            Issue Data
                    Week Starting Total Shares Total Trades Total Shares Total Trades
                      12/7/2020     594,590       2,369       3,598,268     7,023
                     12/14/2020     289,827       1,184       2,231,256     4,985
                     12/21/2020     432,013       1,722       1,486,232     2,818
                     12/28/2020     327,779       1,787       1,517,784     2,911
                       1/4/2021     303,728       2,063       1,809,736     4,073
                      1/11/2021     188,440       1,216       1,552,429     3,724
                      1/18/2021     331,955       1,480       1,230,548     2,732
                      1/25/2021    6,425,337     22,467      31,902,982    64,826
                       2/1/2021    1,326,788      6,219       8,513,999    21,645
                       2/8/2021    2,006,351      8,135      20,579,588    42,034
                      2/15/2021    1,232,263      6,429      12,896,577    33,888
                      2/22/2021    1,864,214      9,477      18,561,297    54,194

           278.     As reported by FINRA, the columns representing total shares are the total volume

    of shares of that security reported for that particular week. The total trades represent the total

    amount of transactions involving those shares.


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            279.    For each of the Relevant Securities, total shares and total trades in dark

    exchanges peaked during the week of January 25, 2021 and February 1, 2021 during the period

    when restrictions were first placed on the Relevant Securities, and were higher than every other

    week recorded from December 2020 through February 2021.

            280.    Given that Retail Investors are generally not able to trade in dark pools and dark

    exchanges, the trading increases set forth in the FINRA reports indicate high institutional

    investor trading including high market maker activity around the time of the restrictions on the

    Relevant Securities, consistent with institutional investors taking advantage of the trading

    restrictions to exit their vulnerable short positions.

            281.    Furthermore, FINRA OTC transparency data indicates that not only dark trading

    activity was elevated for the week of January 25, 2021, but that the bulk of that trading activity

    can be attributed to Citadel Securities.




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      SYMBOL                  BROKER                 VOLUME       % OF VOLUME

        GME          CANACCORD GENUITY LLC            119,079         0%

        GME          CITADEL SECURITIES LLC          92,991,756      50%

        GME              CLEAR STREET LLC             148,717         0%

        GME       COMHAR CAPITAL MARKETS, LLC        3,157,898        2%

        GME            COWEN AND COMPANY             3,030,737        2%

        GME             CUTTONE & CO., LLC            326,013         0%

        GME                De Minimis Firms          1,114,777        1%

        GME         G1 EXECUTION SERVICES, LLC       22,258,085       12%

        GME        HRT EXECUTION SERVICES LLC         249,973         0%

        GME          INTERACTIVE BROKERS LLC           2,999          0%

        GME          JANE STREET CAPITAL, LLC        6,306,835        3%

        GME        LEK SECURITIES CORPORATION         375,071         0%

        GME      NASDAQ EXECUTION SERVICES, LLC       582,562         0%

        GME      NATIONAL FINANCIAL SERVICES LLC      33,408          0%

        GME        STOCKPILE INVESTMENTS, INC.        28,622          0%

        GME         TWO SIGMA SECURITIES, LLC        4,379,714        2%

        GME             UBS SECURITIES LLC           4,163,075        2%

        GME             VIRTU AMERICAS LLC           43,388,647       24%

        GME         WOLVERINE SECURITIES, LLC        1,664,101        1%

                               TOTAL                184,322,069




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      SYMBOL                  BROKER                 VOLUME        % OF VOLUME

        AMC           CITADEL SECURITIES LLC        732,531,515        56%

        AMC             CLEAR STREET LLC              833,054          0%

        AMC       COMHAR CAPITAL MARKETS, LLC        13,573,292        1%

        AMC            COWEN AND COMPANY             3,935,620         0%

        AMC             CUTTONE & CO., LLC            504,341          0%

        AMC                De Minimis Firms          3,739,069         0%

        AMC         G1 EXECUTION SERVICES, LLC       99,468,601        8%

        AMC        HRT EXECUTION SERVICES LLC        3,325,069         0%

        AMC          INTERACTIVE BROKERS LLC           1,595           0%

        AMC          JANE STREET CAPITAL, LLC        38,571,184        3%

        AMC        LEK SECURITIES CORPORATION        2,537,780         0%

        AMC      NATIONAL FINANCIAL SERVICES LLC      25,683           0%

        AMC              SAGETRADER, LLC              536,154          0%

        AMC        STOCKPILE INVESTMENTS, INC.        252,242          0%

        AMC         TWO SIGMA SECURITIES, LLC        37,512,324        3%

        AMC             UBS SECURITIES LLC           36,872,566        3%

        AMC             VIRTU AMERICAS LLC          333,698,597        25%

        AMC         WOLVERINE SECURITIES, LLC        8,562,991         1%

                               TOTAL               1,316,481,677




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           282.     For example, as shown in the first two tables from FINRA’s OTC transparency

    data reports for GME and AMC for the week of January 25, 2021, Citadel Securities represented

    roughly 50% of the non-dark pool over-the-counter market, the bulk of which is market maker

    volume. The scale of Citadel Securities’s business will have significant impact on short volume

    reports available from FINRA and provides insight into Citadel Securities’s short selling activity

    beyond what is disclosed in 13F reporting.

           283.    The FINRA short volume reports provide daily numbers for Short Volume and

    Total Volume (one-sided volume) for all dark OTC trading activity. The percentage of the total

    volume represented by short sales constitutes the percentage volume of sales that were sold

    short. The associated volume of each trade that is reported through such metrics provides

    supporting evidence that a party that executed off-exchange had a short position at the time the

    contributing trade was executed. If a market maker maintains a consistent short position, the

    market maker will report significant short volume through these metrics. When a market maker

    that has significant market share has been maintaining a long position and then switches the

    position to a short position that is subsequently maintained, there will be a significant increase in

    the short volume reported. Because Citadel Securities represents about 50% of the dark trading

    activity, a large shift in the percentage of sales represented by short trades is highly likely to be

    caused by a shift in Citadel Securities’s position from long to short or vice versa.

           284.    The short volume reporting is consistent with a material change in Citadel

    Securities’s position on January 27th, 2021, where Citadel Securities appears to have shifted

    from reporting shares sold long to shares sold short, as evidenced by the change in short ratios

    and short volume reported over the period. As seen in the table below, for each day, January 22,

    25 and 26, the percentage of sells represented by shorts was about 35%. On January 27 that



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    amount jumped to about 53% where it plateaued for roughly 3 days. Such an increase is highly

    unusual and consistent with Citadel Securities taking on a large short position and strongly

    implies that Citadel Securities was short during that time. The transacted volume and 13F reports

    of other candidate market makers that might have contributed to the increase in the percentage of

    short volume relative to total volume does not suggest alternative explanations, given their

    relatively low share of the OTC market for the week of January 25, 2021.

                                               SHORT SALE              TOTAL             % SHORT
       DATE       SYMBOL         SHORT           EXEMPT               VOLUME             VOLUME

      20210129       GME        8,814,229          527,920            16,327,706             54%

      20210128       GME        9,606,123          455,032            18,899,860             51%

      20210127       GME       16,292,827          161,900            29,923,417             54%

      20210126       GME       27,348,512          514,375            82,653,297             33%

      20210125       GME       27,342,770          393,941            72,224,899             38%

      20210122       GME       33,257,918          686,860            97,123,046             34%



           285.    While the financial markets are generally regulated, important aspects of it are

    opaque and render the market susceptible for collusion.

           286.    For example, it is generally impossible to know who owns a short interest at any

    given time despite the prevailing regulatory regime.

           287.    While it is possible that a large investor may publicly disclose its present short

    positions, it would be unusual as it would give competitors an insight into their strategy. Also,

    because there is no way to verify if that were truly the short position the investor had at that

    moment, it could just as well be disinformation.




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            288.    Investment managers who have at least $100 million in assets under management

    are required by the SEC to file a Form 13F every quarter. Congress created the 13F requirement

    in 1975 with the intention of providing investors transparency into the holdings of the U.S.’s

    institutional investors.

            289.    Notwithstanding Congress’s intent to provide transparency to investors and the

    public, these reporting requirements are significantly unregulated and subject to abuse. Form 13F

    filings have earned a reputation for being unreliable. Indeed, a 2010 SEC Report titled “Review

    of the SEC’s Section 13(f) Reporting Requirements” found that “no SEC division or office

    regular or systemic review of the data filed on Form 13F” and that “no SEC division or office

    monitors the Form 13F filings for accuracy and completeness.” The SEC found that, “[a]s a

    result, many Forms 13F are filled with errors or problems, which may not be detected or

    corrected in a timely manner.”

            290.    Another issue with Form 13F filings is that disclosures are limited. Investors are

    only required to report long positions, and put and call options, but not short positions.

            291.    Because Form 13F filings do not require disclosure of short positions, Form 13F

    filings can paint a misleading picture as some investment firms generate most of their returns

    from short selling while using long positions as “hedges.”

            292.    A “hedge” is an investment made with the intention of reducing the risk of

    another investment. For example, an investor with a large short position in a particular security

    may hedge by taking an offsetting or opposite position in a related or the same security. Hedging

    can also be accomplished through the use of derivative securities such as options.

            293.    Another issue with Form 13F filings is the temporal scope of the require

    reporting. 13F filings may be filed up to 45 days after the end of a quarter. As a matter of



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    practice, 13F filings are submitted as late as possible. 13F filings, however, do not require

    reporting of when a particular position was purchased. Therefore, a reported position could have

    been purchased at any time within the four months prior to the filing.

           294.    Additionally, if a 13F filing reports purchases of put or call options, there is no

    requirement to report the strike price or the expiry date, i.e., the price at which an option can be

    exercised and the date the option contract becomes invalid, respectively.

           295.    FINRA also requires member firms to report short interest positions in all equity

    securities twice a month. Reporting is typically on the 15th and the last day of each month with

    an adjustment to the previous business day if those days themselves do not fall on a business day.

           296.    Even though FINRA publishes short interest reports publicly, as a general matter,

    it takes several days before the information is published and the number of shares sold short in

    the market may have changed dramatically.

           297.    Further, the FINRA reports do not account for smaller intervals of time. Dramatic

    changes in short interest may occur within a particular window and not be captured in the

    regularly required report.

           298.    Generally, it is not possible to ascertain which investor has a short position in a

    particular security at any particular time unless the holder of the short position voluntarily

    publicly discloses the position. Unsurprisingly, very few investors voluntarily disclose their short

    positions.

           299.    Although it is not possible to detect which specific investors are in large exposed

    short positions, the companies issuing affected securities are aware and can (and sometimes do)

    confirm if their stock has been significantly shorted or had been subject to a short squeeze.




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             300.   For example, in GameStop Corp.’s Form 10-K filed March 23, 2021, GameStop

    Corp. specifically identified a “short squeeze” as a potential risk factor. Further, GameStop Corp.

    disclosed that it experienced a short squeeze and that a large proportion of its stock had been sold

    short.

                    A large proportion of our Class A Common Stock has been and may
                    continue to be traded by short sellers which may increase the
                    likelihood that our Class A Common Stock will be the target of a short
                    squeeze. A short squeeze has led and could continue to lead to volatile
                    price movements in shares of our Class A Common Stock that are
                    unrelated or disproportionate to our operating performance or
                    prospects and, once investors purchase the shares of our Class A
                    Common Stock necessary to cover their positions, the price of our
                    Class A Common Stock may rapidly decline.

             301.   In the wake of the 2008 financial crisis, Congress legislated wide sweeping

    reforms designed at increasing transparency and curtailing the abuses within the financial sector

    that led to the crisis in the form of the Dodd-Frank Wall Street Reform and Consumer Protection

    Act of 2010.

             302.   Section 929X of the Dodd-Frank Act, titled “Short Sale Reforms,” empowered the

    SEC to promulgate rules providing for the public disclosure of short positions to occur monthly

    at a minimum.

             303.   To date, the SEC has not promulgated rules related to Section 929X.

             304.   Additionally, Congress placed into Dodd-Frank an antitrust savings clause:

                    Nothing in this Act, or any amendment made by this Act, shall be
                    construed to modify, impair, or supersede the operation of any of
                    the antitrust laws, unless otherwise specified. For purposes of this
                    section, the term “antitrust laws” has the same meaning as in
                    subsection (a) of section 12 of title 15, except that such term
                    includes section 45 of title 15, to the extent that such section 45
                    applies to unfair methods of competition.

                    15 U.S.C. § 5303.




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                                        Relevant Product Markets

           305.    Market makers and brokerages operate at two different levels within the

    distribution of securities trading services. Citadel (a market maker) operates in a relevant market

    upstream of that in which Robinhood (a brokerage) operates. The term “upstream” refers to an

    earlier stage in the production or distribution chain. The downstream market faces the ultimate

    consumer (the Retail Investor). The market maker creates the market in which Retail Investors’

    trades can be consummated by agreeing to take the opposite position in a trade. The brokerage

    deals directly with the Retail Investors to assist them in placing those trades. The market makers

    in this case deal with the brokerages, compensating them for the order flow created by myriad

    Retail Investor trades.

                                            Upstream Market

           306.    The relevant upstream product market consists of market makers that pay

    brokerage firms to route their clients’ trades to that market maker (the Payment for Order Flow

    or “PFOF Market”). These include Citadel Securities (which holds the highest market share), G1

    Execution Services, Global Execution Brokers, Virtu Americas, and other relatively minor

    competitors. Defendant Robinhood is able to operate a “zero transaction fee” platform only

    because it derives revenue through PFOF from market makers like Defendant Citadel. In the

    absence of PFOF, brokerages like Defendant Robinhood would likely need to charge their

    investors transaction fees to defray the costs of operating an online brokerage. On October 26,

    2021, Robinhood, when asked, could identify no expected alternative to its PFOF revenue

    system, only claiming that “over time, we’re going to be rolling out more products and services.”

           307.    As the relative behemoth in the PFOF market, Citadel Securities wields

    significant market power. Accounting for approximately 27% of U.S. equities volume and



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   executing approximately 37% of all U.S.-listed retail volume, Citadel Securities is the top

   wholesale market maker in the PFOF Market. For approximately two years, Citadel Securities

   has garnered approximately 40 percent of all PFOF in the United States, more than its next three

   largest competitors, Global Execution Brokers, Virtu Americas, and Wolverine, combined.

          308.    In 2020, Citadel Securities paid approximately $1.1 billion to brokers for their

   order flow, the most of any market maker and nearly equal to its four largest competitors

   combined. By comparison, Global Execution Brokers paid approximately $446 million to

   brokers for order flow (the second highest amount) and Virtu Americas paid approximately $312

   million to brokers for order flow (the third highest amount).

          309.    Further, according to regulatory filings collated by Bloomberg Intelligence, from

   January 2021 through June 2021, Citadel Securities paid nearly $1.5 billion to brokers for their

   order flow – the most of any market maker.

          310.    While Citadel Securities advertises itself as “a leading global market maker across

   a broad array of fixed income and equity products”, it is (by far) the leading PFOF market maker

   in the United States, the relevant product and geographic market.

          311.    The geographic scope of the PFOF Market is limited to the United States because

   securities regulations vary across countries and because the brokerages in the relevant

   downstream market (defined below) are based in the United States.

                                         Downstream Market

          312.    The downstream or consumer-facing relevant product market consists of zero

   account-minimum, no-fee brokerages that 1) offer a user-friendly mobile app to Retail Investors

   to place orders to buy and sell stocks, exchange-traded funds (ETFs), and other securities or

   investments strategies such as trading on margin or using options strategies, and 2) receive



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   payment for order flow from market makers instead of fees from Retail Investors (the “No-Fee

   Brokerage Trading App Market”).

          313.     The No-Fee Brokerage Trading App Market consists of brokerages such as

   Robinhood, Charles Schwab, E*Trade, TD Ameritrade, WeBull, and others. Such brokerages

   offer no-fee transactions because they receive PFOF from market makers in the upstream

   relevant market. For purposes of this complaint, “no-fee” implies PFOF, as the brokerage firm

   must cover its costs via payments from market makers.

          314.     Robinhood’s customers can be characterized as “micro-investors,” as the median

   Robinhood customer holds an account balance of approximately $240. Robinhood attracts micro-

   investors because, inter alia, it permits the purchase of fractional shares as small as one-millionth

   of a single share. TD Ameritrade and E*Trade do not offer fractional shares. Charles Schwab and

   Webull permit fractional shares purchases, though both impose a minimum $5.00 investment in

   such shares. Fidelity likewise permits fractional shares with a $1.00 minimum investment.

   Robinhood’s fractional share offerings thus provide unmatched flexibility for micro investors.

          315.     The geographic scope of the No-Fee Brokerage Trading App Market is limited to

   the United States because U.S.-based investors are most comfortable investing in a U.S.-based

   brokerage and because the nature of securities regulation changes across countries.

                 Robinhood Depended on Citadel Securities for Its Continued Operation

          316.     Robinhood’s business model hinges on payment for order flow, which represents

   approximately 80 percent of Robinhood’s revenues. Unlike Robinhood, other major brokers had

   previously established other revenue streams and only recently slashed commissions.

          317.     As set forth in Robinhood’s Registration Statement, Robinhood’s “PFOF …

   arrangements with market makers are not documented under binding contracts.” (S-1, at 35)



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   (emphasis added). This means that the PFOF arrangement between Robinhood and Citadel

   Securities is terminable by either party at any time.

          318.    As previously noted, Citadel Securities was responsible for approximately 43%,

   or over $141 million of the approximate $330 million that Robinhood received as payment for

   order flow in the first quarter of 2021 alone. Given that Robinhood planned to move forward

   with an IPO in 2021, the continued growth of Robinhood’s business, which depended

   significantly on the PFOF fees it received from Citadel Securities, was on the line if it did not

   collude with Citadel Securities to impose the purchasing restrictions on the Relevant Securities

   on January 28, 2021.

          319.    Simply put, if Robinhood did not acquiesce to the anticompetitive agreement with

   Citadel Securities, it could not rely on the possibility that other market makers, such as Virtu

   Americas, were standing by willing and able to pay Robinhood for order flow that Citadel would

   have otherwise accepted. Further, Citadel Securities knew that Robinhood relied on Citadel

   Securities’ order execution in order to consummate Robinhood Retail Investors’ orders and to

   generate revenue from PFOF. Thus, Robinhood was 1) economically beholden to Citadel

   Securities and 2) therefore willing to take actions against its Retail Investors’ interests and in

   restraint of trade to collude with and thus preserve its financially lucrative relationship with

   Citadel Securities.

          320.    Indeed, communications between executives and high-level employees of

   Robinhood and Citadel Securities demonstrates Robinhood and Citadel’s PFOF relationship was

   precisely a topic of discussion during the week of January 25, 2021, and on the eve of the trading

   restrictions on the Relevant Securities.




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           321.   In the evening of January 27, 2021, the night before Robinhood enacted

   restrictions, Robinhood’s Gretchen Howard indicated to Vlad Tenev that she and Jim Swartwout

   were going to have a call with Citadel wherein she believed that “they [Citadel] will make some

   demands on limiting PFOF across the board.” Later that evening, Swartwout indicated that the

   conversation was a “total mess.” Robinhood’s Dan Gallagher and Citadel’s                   also had

   discussions, which as Citadel Securities’s                      noted to Robinhood’s Swartwout,

   altered certain “Citadel numbers” that required “[f]irming up.” Robinhood’s Swartwout later

   emailed Citadel Securities’s              that he was “beyond disappointed in how this went

   down,” and that “[i]t’s difficult to have a partnership when these kind of things go down this

   way.”

           322.   As these communications show, Robinhood and Citadel Securities’s PFOF

   relationship was a central topic in the lead-up to the imposition of restrictions on January 28,

   2021. The discussions were tense and indicated that Robinhood believed that its PFOF

   relationship with Citadel Securities was in jeopardy.

           323.   While Robinhood could have routed orders to the public exchanges, this was not a

   viable option for Robinhood. As Robinhood derives revenue primarily from payment for order

   flow, any orders routed to the public exchanges would not yield the lucrative payments for order

   flow upon which Robinhood relies for revenues and profits.

                  Robinhood Dominates the No-Fee Brokerage Trading App Market

           324.   By pioneering commission-free trading and offering an easy to use “gamified”

   investment mobile app experience, Robinhood was able to capture millions of Retail Investors

   and catapult to the top of the No-Fee Brokerage Trading App Market.




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          325.    Robinhood claims to have opened nearly 50% of all retail brokerage accounts in

   the past five years, boasting an industry-leading 12.5 million online accounts by the end of 2020

   and adding another 3 million during the month of January 2021. As of March 31, 2021,

   Robinhood had 18.0 million funded accounts, with 17.7 million monthly active users.

          326.    Based on monthly active users, Robinhood is by far the most popular eTrading

   App in the world. Robinhood is also responsible for a significant amount of daily trades.

          327.    In an April 2021 appearance on Jim Cramer’s CNBC show, Robinhood’s Tenev

   boasted that Robinhood “has continued to have over 50% of the market share of new brokerage

   accounts,” which was more than “all of the incumbent legacy providers [e.g., E*Trade, TD

   Ameritrade, Edward Jones and Fidelity] put together.”

          328.    In June 2020, Robinhood reported 4.3 million daily average revenue trades which

   was the most among brokerages. Robinhood reported approximately a half-million more trades

   reported than the next highest broker dealer TD Ameritrade, who reported approximately 3.8

   million daily average revenue trades. Robinhood’s reported trades were more than E-Trade and

   Charles Schwab combined.

          329.    Indeed, Robinhood is far and away the brokerage App of choice for active retail

   traders. On January 27, 2021, Robinhood’s App was downloaded 120,000 times and Robinhood

   set its own record for active daily users on mobile, at 2.6 million, propelling Robinhood to the

   No. 1 App on the App Store for the first time.

          330.    On January 28, 2021, Robinhood’s App was downloaded more than 177,000

   times, twice the daily download rate over the previous week, and it had 2.7 million daily active

   users on its mobile App that day, its highest ever and more than its rivals — Schwab, TD

   Ameritrade, E*Trade, Fidelity and WeBull — combined.



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            331.   Robinhood’s market dominance is demonstrated by the fact that on January 29,

   2021, after Robinhood imposed the trading restrictions on January 28, 2021, Robinhood’s App

   was downloaded 600,000 times.

            332.   In total, Robinhood had more than 3 million App downloads in January 2021, its

   highest on record. By comparison, the next highest number of downloads for a comparable

   company was 800,000, which was on Webull’s App. TD Ameritrade’s App was downloaded

   approximately 370,000 times, Fidelity’s App was downloaded approximately 340,000 times,

   E*Trade’s App was downloaded approximately 220,000 times, Sofi’s App was downloaded

   approximately 121,000 times and Charles Schwab’s App was downloaded approximately 75,000

   times.

            333.   Further, Robinhood has by far the most users on its platform as compared to other

   participants in the No-Fee Brokerage Trading App Market.

            334.   According to data from data-aggregator Statista, as of January 2021, Robinhood

   had nearly three-times as many users as then second-place Fidelity Investments.

            335.   Surprisingly, even after Robinhood imposed the purchasing restrictions on the

   Relevant Securities and/or otherwise limited the number of new positions its customers could

   open, Robinhood was able to raise billions of dollars in capital in just a few short days. As

   explained by one of Robinhood’s investors, “[i]n spite of the trouble last week, the metrics

   suggest retail trading is exploding and Robinhood is still the only game in town.”

            336.   Even in the aftermath of the January 28, 2021 trading restrictions, despite any

   purported reputational hit Robinhood may have incurred, Robinhood still has magnitudes more

   users than other participants in the space. According to Statista, in July 2021, Robinhood still had

   nearly triple the number of active users as than second-place brokerage WeBull. In other words,



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   even after Robinhood and Citadel Securities’s collusive restraint on Retail Investors’ ability to

   trade by limiting consumers’ choices and reducing their order execution (and hence increasing

   the quality-adjusted transaction costs), customers still did not churn so as to make such action

   unprofitable. This result underscores Robinhood’s market power over Retail Investors and its

   acquiescence to Citadel’s interests. Short-term consumer lock-in helps illuminate the nature of

   Robinhood’s market power.

       Retail Investors in the No-Fee Brokerage Trading App Market Are Locked-In to Their
                               Respective Brokerages in the Short Term

          337.    Investors who trade with brokerages in the No-Fee Brokerage Trading App

   Market suffer from short-term lock-in, limiting their ability to instantly switch to a competing

   brokerage. A Retail Investor who wanted to purchase the Relevant Securities from a no-fee

   brokerage trading App, but was unable due to purchasing restrictions (i.e., Robinhood), could not

   simply open a new account with another no-fee brokerage App that permitted purchases of the

   Relevant Securities (i.e., Schwab), as the investment opportunity would pass before the trade

   could be consummated.

          338.    Although a Retail Investor may typically apply for an account with a no-fee

   brokerage trading App in a matter of minutes, it usually takes between one to seven days to fund

   the account and begin trading.

          339.    Carleton English, a journalist reporting for Barron’s, documented this limitation

   when comparing opening brokerage accounts with Robinhood versus Fidelity. Ms. English

   demonstrated that, while she could begin trading with Robinhood immediately, one to two days

   were required after opening before she could begin trading with Fidelity.

          340.    Thus, as a result of the delay between opening an account, funding it, and

   beginning trading at other brokerages, many Retail Investors did not have the opportunity to


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   mitigate the harm caused by Robinhood’s restraint by purchasing the Relevant Securities on

   January 28, 2021.

           341.    In fact, Plaintiffs Guzman and Miller each attempted, but were unable to open

   accounts with competing no-fee brokerage apps so they could purchase the Relevant Securities

   on January 28, 2021.

           342.    While some Retail Investors were able to open an account on another no-fee

   brokerage trading app, like Plaintiff Minahan, they represented the rare exception rather than the

   rule. Retail Investors like Minahan were only able to apply and open an account on another no-

   fee brokerage trading app because of their remarkably high credit scores and ability to

   immediately transfer thousands of dollars to their new trading accounts. The vast majority of

   Robinhood users were unable to open accounts with other brokerage apps.

           343.    In addition to the time needed to open and fund a new account on a competing no-

   fee brokerage trading App, many Retail Investors may not have had the resources to do so as

   their assets were already tied up in their Robinhood account and thus they would have had to

   transfer their assets to another no-fee brokerage trading app in order to have the ability to

   purchase the Relevant Securities on January 28, 2021. As noted previously, the median

   Robinhood customer has $240 in her brokerage account.

           344.    Like opening and funding a new account, transferring accounts takes time.

   Brokerage firms are required by regulators to respond to any requests to transfer their account to

   another brokerage and must initiate the transfer within 24 hours. However, even if the transfer is

   initiated within 24 hours, it typically takes about six days for the process to be completed.

   According to Robinhood, should a user wish to transfer or withdraw funds from their account, it

   typically takes three to five days for the transfer to effectuate.



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          345.     Moreover, many Robinhood customers reported that they were unable to liquidate

   their accounts and move to other brokerage firms. One Robinhood user told the Federal Trade

   Commission that the ability to “continue depositing money is still active but withdrawing money

   or trading stock is completely blocked.” CNBC reported that Robinhood uses a service called the

   Automated Customer Account Transfer Service, or ACATS, to facilitate transfers from

   Robinhood to another brokerage firm, but that ACATS does not support fractional shares, which

   are popular among Robinhood’s user base and which may cause an issue if a Robinhood user

   with fractional shares in their portfolio attempts to transfer his or her account.

          346.     Retail Investors trading on Robinhood’s App could not simply go elsewhere to

   purchase the Relevant Securities on January 28, 2021. In other words, Retail Investors faced high

   (or insurmountable) switching costs in the short-term. Such lock-in gave Robinhood market

   power over its investors in the short-term.

             Robinhood Customers Have Significant Influence on the Price of Securities

          347.     Robinhood’s 17.7 million monthly active users have significant influence on the

   price of securities. According to a research study published by the Swiss Finance Institute,

   Robinhood customers drove 10% of the variation in returns from stocks in the second quarter of

   2020, despite holding only about 0.2% of the aggregate U.S. market capitalization. This is

   because Retail Investors react more strongly to price changes than their institutional

   counterparts.

          348.     In June 2021, the Wall Street Journal reported that Larry Tabb, the head of

   market-structure research at Bloomberg Intelligence, estimated: “[a]ctivity from individual

   investors trading on Robinhood Markets Inc. accounted for roughly 4% of total U.S. share

   volume in January …” Given the fact that one out of every 25 shares traded on all U.S. markets



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   in January 2021 traded on Robinhood’s platform, the purchasing restrictions Robinhood imposed

   on the Relevant Securities undoubtedly moved their share price.

          349.    While Robinhood imposed a wholesale purchasing restriction on the Relevant

   Securities on January 28, 2021, it ultimately continued to impose limitations on certain securities

   through February 4, 2021. Robinhood’s purchasing restrictions likewise affected the share price

   of those securities. On February 1, 2021, The Wall Street Journal published an article, which

   noted that after Robinhood relaxed restrictions in the overnight hours, by 6:00 a.m., “[t]welve of

   the 13 stocks that Robinhood Markets had restricting trading in last week jumped premarket.”

                                             Antitrust Injury

          350.    As a result of the collusive actions of Robinhood and Citadel, Retail Investors

   suffered a reduction in the quality of their trades. In other words, Retail Investors paid a higher

   quality-adjusted price as a result of Defendants’ conduct. This is true even though Robinhood

   customers do not pay the brokerage a commission fee in exchange for their trades. Rather,

   customers pay in kind by permitting Robinhood to exchange their aggregate trading volume for

   payment for order flow from market makers such as Citadel Securities. In exchange, Retail

   Investors reasonably expect that Robinhood and Citadel Securities will efficiently execute their

   trades as directed. Defendants’ ability to leverage their market power to restrict such trades

   represents a quality degradation of the brokerage services rendered, or, alternatively, a quality-

   adjusted price increase of trading on Robinhood.

          351.    Robinhood degraded the quality of its services to Retail Investors because of its

   relationship and agreement with Citadel. In a competitive market where Robinhood faced the

   threat of consumer defection resulting from such a degradation in service quality, Robinhood

   would not have cut off market access to its paying clients, as doing so would have resulted in



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   sufficient client loss as to render its actions unprofitable. However, because Robinhood exercises

   market power and relies on Citadel as its primary source of revenue, Robinhood chose to

   prioritize its business relationship with Citadel over Retail Investors and enter into an agreement

   in restraint of trade to do so. To prevent Retail Investors from defecting, Robinhood curtailed

   investors’ ability to transfer funds out of Robinhood by placing barriers in their way—leaving

   them stuck and helpless while Robinhood served at the pleasure of Citadel. Thus, while investors

   did not pay a brokerage fee, they did pay a price in terms of opportunity cost. Indeed, financial

   experts have recognized that brokerage costs represent only one component of the trading costs

   for an asset. Opportunity costs, the bid-ask spread, and price impacts are all costs that Retail

   Investors still had to incur and which Robinhood’s actions affected.

          352.    Putting financial jargon aside, a simpler way to view Robinhood and Citadel’s

   collusive restraint of trade is through the lens of a bribe or kick-back. Citadel Securities faced the

   threat of short squeeze, as Retail Investors pushed the prices of the relevant securities upward. As

   a result, Citadel Securities could have incurred potentially unlimited losses. To stem its losses

   and shore up its financial position, Citadel leveraged its power over Robinhood, which originates

   from Citadel’s absorption of Robinhood’s order flow. Robinhood, aware of its dependence on

   Citadel, in turn leveraged its own market power over Retail Investors by limiting their ability to

   purchase the relevant securities. In doing so, the combination of Citadel and Robinhood,

   powered by the former’s ability to bribe and/or squeeze the latter, the market price of the

   securities could not rise to the competitive level that it would have absent the restraint. Thus, in

   effect, by assuring Robinhood that it would continue to receive PFOF, Citadel bribed Robinhood

   to take actions not only against its own self-interest but also against the interests of its micro

   investor clients—the Retail Investors. Bribery is recognized in economics and antitrust law as a



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   means of participating in the conduct of another enterprise’s affairs. Had Citadel Securities not

   exerted its power over Robinhood, the latter would have had no incentive to cut off market

   access for Retail Investors. Instead, in a competitive counterfactual unencumbered by market

   power, Robinhood would have diverted the trades to a different market maker. If Robinhood did

   let the markets operate freely and fairly, the prices of the Relevant Securities would have likely

   increased, further squeezing Citadel’s aggressive short positions. Regardless of whether Citadel

   may have offered Robinhood additional compensation to work contrary to the interests of its

   investor users, the most economically logical conclusion is that Citadel Securities may have

   threatened to walk away from its relationship with Robinhood, a relationship which Citadel knew

   Robinhood was dependent upon, which is tantamount to a bribe.

          353.    Basic valuation methodology further explains how Robinhood’s prohibition on

   purchases of the Relevant Securities imposed a transaction cost (i.e., a price increase) on Retail

   Investors. The trading restriction effectuated a blackout period for stock purchases. Robinhood’s

   actions constrained traders willing to sell from accommodating the demand of Robinhood-based

   traders were willing to purchase, thus resulting in a decrease in liquidity and thus artificially

   deflating the prices of the Relevant Securities. The larger the desire of Robinhood investors to

   purchase, the greater the downward the effect of the restrictions on securities’ prices.

          354.    In addition, Defendants’ actions resulted in a reduction in output in the form of a

   reduced number of trades (specifically, purchases) of securities. Such a constraint on the

   competitive process resulted in an artificial market price; the price at which securities could be

   sold (which Robinhood did not restrict) no longer reflected the actual market price set through

   the supply and demand mechanisms that characterizes competitive markets. In effect,

   Defendants’ collusive conduct resulted in a downward manipulation of the prices of the Relevant



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   Securities. By colluding to prohibit Retail Investors from purchasing (but not selling) the

   Relevant Securities, Defendants harmed the very competitive mechanism that sets the market

   price through the forces of supply and demand and thus distorted the price-discovery process.

          355.    Finally, by colluding to manipulate the price of the Relevant Securities

   downward, Defendants harmed the companies whose securities the Retail Investors wanted to

   purchase and resulted in a reduction of output compared to the competitive counterfactual. For

   example, as a result of the price increase that it enjoyed even in the presence of Defendants’

   conduct, GameStop announced in April that it would issue up to an additional 3.5 million shares

   and indicated that it would use the proceeds “to further accelerate its transformation as well as

   for general corporate purposes and further strengthening its balance sheet.” Likewise, AMC

   announced a plan to issue 25 million more shares.

          356.    Alternatively, Defendants’ conduct can be understood as an artificial restriction on

   output. By moving the Relevant Securities to position-close only, i.e., prohibiting users from

   opening new positions in the security and only allowing them to sell, Defendants effectively

   eliminated the output of those securities through Robinhood’s platform. Because Robinhood

   users were effectively locked-in to the Robinhood app and could not purchase securities on other

   broker-dealer platforms, Retail Investors using Robinhood were effectively denied any

   opportunity to open new positions in the Relevant Securities. By restricting Retail Investors’

   ability to open new positions in the Relevant Securities on Robinhood, Defendants were able to

   curtail the upward momentum of the stock price and caused an artificial decline in the price of

   the Relevant Securities.




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                        There Are No Procompetitive Efficiency Justifications

          357.    Defendants’ likely efficiency claim that increased market volatility prompted

   Robinhood’s prohibition on purchases of the Relevant Securities is pretextual for several reasons.

          358.    First, Robinhood had an economic incentive to permit, not prohibit, purchases of

   the Relevant Securities. This is because, as it noted in its Form 10-Q for the period ended

   September 30, 2021, Robinhood’s transaction fees for equities are based on the market maker’s

   publicly-quoted bid-ask spread for the traded security in question. Robinhood receives a fixed

   percentage of the bid-ask spread, meaning that a higher bid-ask spread results in greater

   compensation for Robinhood. Larger bid-ask spreads characterize periods of higher volatility, as

   the market maker widens the spread to protect itself from volatility-based risk. Thus, had it acted

   in its own self-interest rather than at the behest of Citadel Securities per the scheme, Robinhood

   would have welcomed the period of volatility and its accompanying higher revenues.

          359.    To wit, Robinhood has acknowledged that it has previously benefited from higher

   market volatility. In the same form 10-Q, it observed that the onset of the COVID-19 pandemic

   and its concomitant period of increased volatility resulted in a substantial growth of its user base:

   “Since the onset of the COVID-19 pandemic, we have seen substantial growth in our user base,

   retention, engagement and trading activity metrics, as well as continued gains and periodic all-

   time highs achieved by the equity markets generally. During this period, market volatility, stay-

   at-home orders and increased interest in investing and personal finance, coupled with low

   interest rates and a positive market environment, especially in the U.S. equity and cryptocurrency

   markets, helped foster an environment that has encouraged an unprecedented number of first-

   time retail investors to become our users and begin trading on our platform.” (Emphasis added).




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           360.    Thus, any argument justifying Robinhood’s prohibition on purchasing the

   Relevant Securities on the basis of increased market volatility is plainly incongruous not only

   with Robinhood’s economic interests, as reflected in its compensation model, but also its own

   financial statements.

           361.    Second, Robinhood’s prohibition on purchases of the Relevant Securities but

   permitting their sale on its platform obviates any market volatility defense as a mathematical

   matter. Volatility equals the annualized standard deviation of a stock’s returns over a particular

   time period. Volatility results from both upside (increases) and downside (decreases) movements

   in a security’s price (i.e., returns). A rapid price decline would result in high volatility (large

   changes in returns) just as a rapid price increase does. Indeed, in absolute terms, a smaller price

   decrease can yield the same volatility as a much larger price increase. A 10 percent increase in

   the price of a $30.00 stock equals $3.00. But a 10 percent decrease of a $3.00 stock is only

   $0.30. However, the absolute values of the two returns (the percentage changes) are the same:

   ten percent. Changes in the price of a stock result in asymmetric differences because any

   security’s price has a lower bound of zero (i.e., the price cannot be negative) but no upper bound.

   For this reason, potential losses on a put option (i.e., a short position) are considered infinite. The

   nature of such losses also explain Citadel Securities’s desire to enter into a collusive agreement

   to limit purchases and thus constrain such losses, given that it held large short positions in the

   Relevant Securities.

           362.    The figure below demonstrates how monotonic price increases and decreases can

   both yield the same volatilities. Consider the prices of a two stocks, each of which trade at $10

   on the first day of trading. The first stock randomly decreases every day for 30 trading days at

   between 1% and 10%. The second stock randomly increases over the same period by the same



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   amount, as shown in the graph below. One may be tempted, based on the asymmetric appearance

   of the upward and downward trajectories to conclude that Stock 2 (upward) has a higher

   volatility than Stock 1 (downward). But this is not the case. Indeed, the two volatilities are nearly

   identical: 43.5% for Stock 1 and 43.2% for Stock 2. This simple mathematical fact illustrates

   why an attempt to justify prohibiting purchases of the Relevant Securities while permitting their

   sales on the basis of moderating market volatility is inapposite.




          363.    Further, Robinhood’s public attempt to attribute the motivation for its collusive

   conduct with Citadel Securities to the NSCC margin call also fails. As any brokerage, Robinhood

   had lines of credit at its disposal precisely for periods such as this, when investor demand would

   require it to provide float for a limited time period until clearing (2 days).




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          364.    Indeed, according to Robinhood Securities’s Annual Audited Report filed with the

   SEC, as of December 31, 2020, Robinhood Securities has “six revolving and unsecured lines of

   credit with the Parent [i.e., Robinhood Markets] for a total of $550.0 million.” Indeed,

   Robinhood CEO Vlad Tenev told CNBC at the time that accessing its credits lines was a standard

   procedure: “By drawing on our credit lines which we do all the time as part of normal day to day

   operations we get more capital that we can deposit with the clearing houses and that will allow

   us to enable ideally more investing with fewer restrictions.” Further, Robinhood, based on its

   own characterization of “democratizing finance”, should have reasonably expected that it may

   need substantial credit to meet its self-proclaimed goals. Yet, far from democratizing finance,

   Robinhood’s actions demonstrated its subservience to Citadel to the detriment of its Retail

   Investors.

          365.    Other efficiency arguments are also unavailing. Not all brokerages restricted

   Retail Investors from purchasing the Relevant Securities on or about January 28, 2021. Charles

   Schwab and TD Ameritrade, for example, did not halt any trading, but merely adjusted margin

   requirements for certain securities and restricted certain exotic strategies usually employed by

   the most advanced traders.

          366.    Further, the purchasing restrictions imposed by Robinhood far exceeded those

   imposed by other brokerage firms in both duration and scope. On January 28, 2021, Ally, Dough,

   Public.com, SoFi, Stash, Tastyworks and WeBull each restricted two or three of the Relevant

   Securities, but only for a matter of hours. Dough, for example, announced its restrictions at about

   12:05 PM and at 2:45 PM announced that its restrictions had been lifted.

          367.    Similarly, on January 28, E*Trade imposed purchasing restrictions on just two of

   the Relevant Securities (GME and AMC), and these restrictions, which came late in the trading



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   day, were lifted the next day. And Interactive Brokers only restricted trading on options, not

   stocks, for five of the Relevant Securities. Interactive Brokers likewise lifted its trading

   restriction the next day.

           368.    By contrast, Robinhood’s trading restrictions far exceeded those imposed by other

   brokerages. For starters, Robinhood was the only brokerage to restrict trading in all of the

   Relevant Securities. And even though Robinhood removed its purchasing restriction on the

   Relevant Securities on January 29, 2021, it continued to impose restrictions through February 4,

   2021, by limiting the number of new positions of the Relevant Securities its users could open.

           369.    Indeed, this demonstrates that not only did Robinhood lack any procompetitive

   justifications for its anticompetitive acts pursuant to its collusive agreement with Citadel, but

   even if it did, Robinhood could have achieved those using less restrictive means.

    The Structure and Characteristics of the Market Support the Existence of an Anticompetitive
                                             Agreement

           370.    The structure and characteristics of the market for securities, and in particular the

   lack of disclosure of short interest positions at any given time, make it conducive to collusion

   and anticompetitive conduct.

           371.    Courts, scholars, economists, and government agencies such as the Department of

   Justice recognize that structural market factors can help assess whether collusive conduct in

   violation of the antitrust laws has occurred.

           372.    High Barriers to Entry. Markets with high barriers to entry are susceptible to

   anticompetitive collusion. Under basic economic principles, if there are high barriers to entry,

   new entrants are unlikely to enter the market. If a broker dealer were to restrict trading in a

   security in high demand, new broker-dealers would enter the market to seek to benefit from the

   investors who wish to trade in the restricted security.


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           373.    The No-Fee Brokerage Trading App Market is characterized by substantial

   barriers to entry. An entrant seeking to become a broker dealer or a clearing firm would need

   specialized knowledge, several licenses and memberships, including memberships in

   organizations such as FINRA. In addition to licensure costs, compliance costs to adhere to

   industry and regulatory standards are also significant.

           374.    Additionally, entrants require significant amounts of cash or capital to deposit at

   clearinghouses such as the DTCC as collateral. The significant collateralization requirement also

   serves as a barrier to entry.

           375.    Technological infrastructure has also become a barrier to entry. As the financial

   services industry shifts to become more and more technology focused and as many successful

   participants are financial technology firms, a new entrant needs to have the necessary

   infrastructure and expertise to navigate the digital market. Many of the exchanges on which

   securities are traded are electronic and fully automated and allow institutions to directly interact

   with the securities on offer on the exchanges. NASDAQ for example has been fully electronic

   since its inception in 1971. Therefore, any potential market entrant would also need significant

   technological wherewithal and sophistication in order to participate in the financial markets.

           376.    In particular, an entrant seeking to enter the No-Fee Brokerage App Market

   requires technical expertise in order to design an app or trading platform that users can access.

   This requires coding expertise as well as dedicated servers to maintain connections to exchanges

   in order to facilitate trades.

           377.    The PFOF Market is likewise defined by high barriers to entry. In particular,

   market makers are driven by sophisticated algorithms which require significant mathematical

   expertise to design.



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           378.    Additionally, PFOF Market participants are generally HFT market makers and

   rely on latency and high-speed connections in order to engage in arbitrage strategies. This

   requires extensive infrastructure including high speed connections to exchanges and

   sophisticated hardware that enables their computerized algorithms to react to changes in the

   market in fractions of a second.

           379.    High Fixed Costs and Low Variable Costs. Markets characterized by high fixed

   costs and low variable costs are susceptible to anticompetitive collusion. The market for No-Fee

   Brokerage Trading Apps and the PFOF are defined by high fixed costs, low variable costs and

   benefit greatly from scale, particularly with regards to online broker-dealers and clearing firms.

           380.    For example, online broker-dealers participating in the No-Fee Brokerage Trading

   App Market require significant IT infrastructure, software, and data security infrastructure in

   order to develop and maintain the applications through which investors trade. This is in addition

   to the licensure and regulatory costs described above.

           381.    Likewise, PFOF Market participants (i.e., market makers) require significant IT

   infrastructure, software, and data security infrastructure in order to facilitate the digital clearing

   and custodial services they provide to online broker dealers.

           382.    Further, PFOF Market participants are generally high frequency traders and rely

   on sophisticated software and algorithms to match the incoming bids and offers of the orders

   routed to them from either broker dealers or clearing firms.

           383.    In particular for HFT market makers, latency is critical in order to react quickly

   and engage in arbitrage strategies. As a result, HFT market makers invest significant effort and

   resources to increase the speed of trading technology to maximize their profits.




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           384.    Variable costs are low. Once infrastructure is in place, it generally is not more

   expensive to handle 10,000 trades as opposed to 10, particularly in the high-tech financial

   services industry as it exists today.

           385.    Retail Investors Subject to the Conspiracy Are a Locked-In Captive Market. In a

   competitive market, if a consumer desires a product or service that is not offered by a particular

   seller, the consumer can go to a different seller who does offer the desired product or service.

           386.    For example, in a competitive market for no-fee trading apps, if a broker does not

   offer a particular security the investor desires, investors will move assets and invest with a broker

   dealer that does offer trading in that security.

           387.    In the short run, however, an investor is generally locked into broker dealers that

   they already invest with.

           388.    Generally, the process to open a trading account with a broker dealer takes a short

   amount of time, typically several days. Depending on the type of account, the waiting period

   may be longer or shorter. For example, opening a cash account typically takes a shorter amount

   of time than opening a margin account or options account because a broker dealer may require

   additional levels of proof of financial solvency such as a credit score check.

           389.    Robinhood makes transfer of assets from users’ Robinhood accounts difficult and

   expensive. For example, if a Robinhood user wishes to transfer or withdraw funds from their

   Robinhood account to their personal bank account, according to Robinhood, the funds would not

   be available for three-or-five days after the user initiates their request. In addition to being slow,

   Robinhood charges a $75 fee for a user to transfer her own assets to another brokerage. On its

   website, Robinhood answers the question: “Are there any fees to transfer my assets to another

   brokerage?” with “If you’re transferring stocks or cash from Robinhood to an outside brokerage,



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   there is a $75 fee, which will be debited from your Robinhood account’s available cash balance.”

   See https://robinhood.com/us/en/support/articles/transfer-stocks-out-of-your-robinhood-account/

          390.    Should a user wish to withdraw all of their funds from their Robinhood account,

   Robinhood imposes further restrictions, and does not permit Robinhood users from trading

   positions in their owned securities, i.e., Robinhood users are unable to sell securities they already

   own if they initiated a request to withdraw all of their funds from their Robinhood account.

          391.    During the week of January 25, 2021, numerous Robinhood users reported these

   already substantial delays were exacerbated and Robinhood users were unable to withdraw or

   transfer their funds even within those time windows.

          392.    If restrictions occur, investors have no opportunity to switch or change broker

   dealers for days and are investing without market power.

                                            Motive to Collude

          393.    Defendants Robinhood and Citadel Securities shared a common motive to

   conspire—to protect their individual self-interest over the welfare of Robinhood’s users.

   Robinhood restricted competition on its platform to protect itself and Citadel from hemorrhaging

   losses totaling potentially billions of dollars. Defendants Robinhood and Citadel Securities

   shared a common motive to conspire—to protect their individual self-interests.

          394.    Citadel Securities possessed significant short positions in the Relevant Securities

   during the period in question. As the prices of the Relevant Securities went up, its exposure

   increased, and its losses were potentially infinite if it did not stop the surge of the Relevant

   Securities.

          395.    As Retail Investors bought securities and call options, Citadel Securities

   developed a large short position as a function of its market making, i.e., taking the other side of



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   buy orders or purchased call option orders. As of December 31, 2020, Citadel Securities (the

   market maker), reported $57.5 billion in “securities sold, not yet purchased, at fair value,” which

   is likely representative of Citadel Securities’s short position.

          396.    As the price of the Relevant Securities increased, Citadel Securities’s short

   position became increasingly distressed subjecting to a potential Short or Gamma Squeeze.

   Citadel Securities stood to benefit from the one-sided restrictions by taking the other side of the

   Retail Investors’ sell orders that resulted from the one-sided sell-only restrictions placed by

   Robinhood. By taking the other side of the sell orders, Citadel Securities could return the stock it

   had borrowed to sell short, and benefit from the rapidly decreasing price of the Relevant

   Security, mitigating its loss as a result of the Short or Gamma Squeeze.

          397.    Citadel Securities stood to gain from stopping the short squeeze by purchasing

   new short positions at the peak of the Relevant Security price increase and then profiting from

   the artificial decrease in share price after the trading restriction on January 28th. While there is

   no publicly available data to show that Citadel Securities was one of the parties that opened up

   new short positions on January 25th—recall there is no requirement that hedge funds disclose

   their short positions except as described above—it would be in Citadel Securities’s best interest

   to open up new short positions if Citadel Securities planned to leverage its relationships to halt

   trading of GameStop and other Relevant Securities and artificially depress their share price.

          398.    Public Form 13F disclosures by market makers such as Citadel Securities reveal

   large short positions in Relevant Securities such as GME and AMC that grew substantially from

   December 2020 to March 2021. While short positions in stocks, call options and put options are

   not disclosed on Form 13F, long positions in put options are disclosed, and long put options

   represent short positions on the underlying stock.



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           399.    On Citadel’s December 31, 2020 13F filing, which consolidated Citadel’s

   advisory and market making subsidiaries, Citadel disclosed a long put option position on

   2,224,500 shares of GameStop stock and a long put option position on 1,749,200 shares of AMC

   stock. On Citadel’s March 31, 2021 13F filing, Citadel disclosed that the GameStop long put

   option position had grown by almost 50% to 3,271,400 shares and that the AMC long put option

   position had grown by 224% to 5,676,200 shares.

           400.    As a result of Robinhood’s PFOF relationship with Citadel Securities, which

   accounted for 34% of its revenue in 2020, more than Robinhood received from any other market

   maker, Robinhood was beholden to Citadel Securities. Rather than jeopardize what high level

   executives of Robinhood and Citadel Securities characterized as a “strong relationship” and/or

   “partnership” and risk not being able to find a replacement market maker willing to pay for its

   orders, Robinhood colluded with Citadel Securities to restrict competition on its platform to

   protect Citadel Securities from hemorrhaging losses totaling potentially billions of dollars.

           401.    As set forth in Robinhood’s Registration Statement, Robinhood would have little

   to no recourse “if there are no other market makers that are willing to receive such orders from

   us or to pay us for such orders, or if we are unable to find replacement market-makers in a timely

   manner.” (S-1, at 35). And in light of its planned 2021 IPO, Robinhood simply could not run the

   risk that its “transaction-based revenue would be impacted negatively” should Citadel Securities

   terminate its relationship with Robinhood.

           402.    As a result, Robinhood had every motivation to participate in the anticompetitive

   scheme to restrict trading to benefit its real client: Citadel Securities. In this relationship, it is

   actually the Retail Investors who are Robinhood’s product; a product for which Citadel

   Securities is paying Robinhood a premium.



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                                        CLAIMS FOR RELIEF
                                              COUNT ONE
                           CONSPIRACY TO RESTRAIN TRADE
                    IN VIOLATIONOF SECTION 1 OF THE SHERMAN ACT,
                                      15 U.S.C. § 1
                                 (Against all Defendants)
            403.   Plaintiffs hereby incorporate by reference the factual allegations as set forth

   above.

            404.   Defendants conspired and entered into an anticompetitive scheme to fix, raise,

   stabilize, maintain or suppress the price of the Relevant Securities, and in order to restrain trade.

            405.   Faced with potentially disastrous losses due to their short positions, Citadel

   Securities, rather than engage in competition or the ordinary activities of the market, conspired,

   combined, agreed and colluded with Robinhood to restrict purchases in stocks by Retailer

   Investors and to manipulate and artificially suppress the price of stock, through which it could

   cover its short positions.

            406.   Defendants conspired and agreed with one another with the intent to artificially

   lower the price of the relevant stocks.

            407.   Defendants coordinated a collective shutdown of the stock brokerage market with

   respect to the Relevant Securities, prohibiting market participants with the exception of

   institutional investors such as Citadel Securities from purchasing stock in the Relevant

   Securities. Pursuant to the conspiracy, the restriction of stock purchases resulted in a sell-off of

   stocks, driving down prices in the Relevant Securities to levels that would not have been

   obtained, but for the conspiracy, combination, agreement and restraint of trade.




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           408.    In furtherance of the conspiracy, combination, agreement and restraint of trade,

   before the opening of the stock market on January 28, 2021, Citadel Securities increased short

   volumes in anticipation of short calls on January 28, 2021.

           409.    In furtherance of the conspiracy, combination, agreement and restraint of trade,

   Robinhood prohibited or unreasonably restricted the purchases of shares of the Relevant

   Securities by Plaintiffs in restraint of trade.

           410.    As a direct and intended result of Defendants contract, combination, agreement

   and restraint of trade or conspiracy, Defendants caused injury to Plaintiffs and Class members by

   restricting purchases of the Relevant Securities. Robinhood deactivated the buy option on its

   platforms and left Plaintiffs and Class members with no option but to sell or hold shares of the

   stocks on their platforms. Plaintiffs and Class members, faced with an imminent decrease in the

   price of their positions in the Relevant Securities due to the inability of Retail Investors to

   purchase shares, were induced to sell their shares in the Relevant Securities at a lower price than

   they otherwise would have, but for the conspiracy, combination, agreement and restraint of trade.

   Additionally, Class members that would have purchased more stock in the Relevant Securities

   given the upward trend in price could not do so.

           411.    Robinhood disguised its wrongdoing by offering pretextual explanations for the

   restrictions, claiming it was subject to increased collateral requirements, when in reality the

   decision to restrict had already been made.

           412.    Pursuant to the contract, combination, agreement, conspiracy and restraint of

   trade, Robinhood continued to route sell orders to Citadel Securities to purchase stocks at the

   artificially deflated prices to reduce their distressed short positions. Citadel Securities, who were

   in exposed short positions due to the short and gamma squeeze, purchased the artificially price-



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   suppressed stocks to cover their short positions and concealed their activity by using off-

   exchange trading, including their own internal dark market maker units.

          413.    Defendants’ anticompetitive and unlawful conduct is per se illegal.

          414.    Alternatively, even if Defendants’ conduct does not constitute a per se violation of

   the Sherman Act, Defendants are liable under a rule of reason analysis.

          415.    As a direct and proximate result of Defendants’ unlawful conduct, Plaintiffs and

   Class members were injured in their business and property.

                                     PRAYER FOR JUDGMENT

          WHEREFORE, Plaintiffs request that the Court enter judgment on their behalf and on

   behalf of the Class defined herein, by adjudging and decreeing that:

          a.      This action may proceed as a class action, with Plaintiffs serving as Class

   Representatives, and with Plaintiffs’ counsel as Class Counsel;

          b.      Defendants have contracted, combined, and conspired in violation of Section 1 of

   the Sherman Act, 15 U.S.C. § 1, and that Plaintiffs and the Class have been injured in their

   business and property as a result of Defendants’ violations;

          c.      Plaintiffs and the Class are entitled to pre-judgment and post-judgment interest on

   the damages awarded to them;

          d.      Defendants are to be jointly and severally responsible financially for the costs and
   expenses of a Court-approved notice program through post and media designed to give

   immediate notification to the Class;

          e.      Plaintiffs and the Class recover their costs of this suit, including reasonable

   attorneys’ fees as provided by law;

          f.      Plaintiffs and the Class are entitled to equitable relief appropriate to remedy

   Defendants’ past and ongoing restraint of trade, including:




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                        1)      A judicial determination declaring the rights of Plaintiffs and the Class,

                        and the corresponding responsibilities of Defendants.

              g.         Plaintiffs and the Class receive such other or further relief as may be just and

    proper.

                                            JURY TRIAL DEMANDED

                   Pursuant to Federal Rule of Civil Procedure 38(b), Plaintiffs demand a trial by jury of

    all the claims asserted in this Complaint so triable.

 Dated: January 20, 2022

 By:                 /s/ Joseph R. Saveri                By:            /s/ Frank R. Schirripa
                         Joseph R. Saveri                                   Frank R. Schirripa

 Joseph R. Saveri (CA SBN 130064)                        Frank R. Schirripa (NY SBN 4103750)
 Steven N. Williams (CA SBN 175489)                      Kathryn Hettler (NY SBN 5126065)
 Christopher K.L. Young (CA SBN 318371)                  Seth Pavsner (NY SBN 4969689)
 Anupama K. Reddy (CA SBN 324873)                        Eugene Zaydfudim (NY SBN 5204334)
 JOSEPH SAVERI LAW FIRM, LLP                             HACH ROSE SCHIRRIPA & CHEVERIE LLP
 601 California Street, Suite 1000                       112 Madison Ave, 10th Floor
 San Francisco, California 94108                         New York, New York 10016
 Telephone: (415) 500-6800                               Tel: (212) 213-8311
 Facsimile: (415) 395-9940                               fschirripa@hrsclaw.com
 jsaveri@saverilawfirm.com                               khettler@hrsclaw.com
 swilliams@saverilawfirm.com                             spavsner@hrsclaw.com
 cyoung@saverilawfirm.com                                ezaydufim@hrsclaw.com
 areddy@saverilawfirm.com
                                     Co-Lead Counsel for the Antitrust Tranche




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