2026 Membership Book FINAL

Case 2:25-cv-01541-APG-DJA Document 32 Filed 09/30/25 Page 3 of 21

a mechanism for tribes and states to negotiate compacts governing Class III gaming, such as sports

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betting, subject to federal approval. See 25 U.S.C. §§ 2702, 2703(8), 2710(d)(3).

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IGRA is intended to balance state, federal, and tribal interests. Chicken Ranch Rancheria

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of Me-Wuk Indians v. California , 42 F.4th 1024, 1032 (9th Cir. 2022). Some states have

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negotiated compacts wherein tribes are the exclusive operators of certain types of gaming within

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the state. E.g. , Artichoke Joe’s v. Norton , 353 F.3d 712, 718 (9th Cir. 2003). This delicate balance

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of federal, tribal, and state interests has allowed tribes to generate substantial gaming revenue,

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which directly funds important tribal government services that benefit tribal citizens.

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Robinhood Derivatives, LLC (“Robinhood”) unlawfully and unfairly entered into the

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gaming market, which adversely impacts tribal gaming revenue and infringes upon the benefit of

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tribes’ bargained-for compacts. Additionally, by offering its so-called sports event contracts under

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the guise of commodity trading pursuant to the Commodity Exchange Act (“CEA”), Robinhood

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impedes tribes’ inherent sovereign right to regulate gaming activity on Indian lands. Contrary to

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Robinhood’s arguments: (1) the CEA does not exclusively govern its gaming-related sports event

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contracts; (2) such contracts are expressly prohibited by the CEA and Commodity Futures Trading

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Commission’s (“CFTC”) own regulations; and (3) federal, state, and tribal gaming laws (including

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IGRA), therefore, apply to and govern its sports wagering activity.

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Because Robinhood has failed to establish a likelihood of success on the merits, this Court

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should deny its motion for preliminary injunction.

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I.

IGRA Governs Robinhood’s Sports Betting Conduct on Indian Lands

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A. Robinhood’s sports event contracts constitute “Class III Gaming” under

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IGRA

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IGRA advances the longstanding federal policy of promoting and sustaining tribal self-

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sufficiency. See 25 U.S.C. § 2701(4). In this regard, IGRA has been incredibly successful. 2 The revenue generated by tribal gaming supports thousands of jobs in hundreds of communities, and

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provides critical funding to state and local governments through revenue-sharing agreements, tax

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