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Gary Gensler, Former SEC and CFTC Chair, Contests Prediction Markets' Authority

Gary Gensler contests the legality of sports-related prediction markets, asserting they violate state regulations and fall outside CFTC authority.

Mercation Admin
June 12, 2026 3 min read
Gary Gensler, Former SEC and CFTC Chair, Contests Prediction Markets' Authority

Former SEC and CFTC Chair Raises Concerns Over Prediction Markets' Compliance with State Laws

Gary Gensler, the former chair of the SEC and CFTC, has taken a firm stance against prediction markets, particularly those involving sports betting, arguing that they exceed their legal limits. His recent amicus brief submitted to the Sixth Circuit Court of Appeals emphasizes that federal law does not extend the CFTC's authority to regulate these markets.

Gensler, alongside various organizations including the Indian Gaming Association and Native American tribes, contends that sports-related prediction markets violate existing state and tribal laws. This legal battle is rooted in a lawsuit initiated by Kalshi, which sought to prevent the state of Ohio from pursuing legal action against it. A federal court previously ruled against Kalshi in March, raising the stakes for the company.

In his brief, Gensler detailed the regulatory landscape surrounding derivatives, referencing the Commodity Exchange Act and the Dodd–Frank Act. He argued that Congress has clearly delineated the CFTC's jurisdiction, specifically excluding sports betting contracts from its purview. He noted, "Congress did not include sports betting contracts in the Dodd-Frank definition of swap," emphasizing that these contracts do not fit the legal framework established for swaps, which are primarily designed for hedging economic risks.

The central question at hand is whether sports prediction markets should be classified under federal regulation as swaps or if they represent a new form of financial product that resembles sports gambling. This issue has sparked significant legal debate across the country, with some states taking action against prediction market operators for not registering as gambling entities.

If the CFTC's position is upheld, it could lead to substantial tax revenue losses for states. Conversely, a ruling favoring state regulations would require prediction market operators to register and comply with state laws, potentially exposing them to legal repercussions in jurisdictions like Arizona and Minneapolis.

Gensler articulated the potential consequences of this case, noting that significant stakeholders, such as Senate Majority Leader Harry Reid, would not have supported legislation that endangers an essential economic activity for their states by placing sports betting solely under CFTC regulation.

Opinions among U.S. courts have been mixed; while some have sided with prediction market operators, others have favored state regulations. The Third Circuit Court of Appeals previously ruled against New Jersey's attempt to shut down prediction markets, while the Ninth Circuit appeared more sympathetic to state claims.

As the Supreme Court is expected to weigh in on this matter, Gensler's brief highlights the growing legislative interest surrounding the regulation of prediction markets.

Broader Implications of Amicus Briefs

The CFTC, under Chair Mike Selig, has also filed an amicus brief asserting that any event contract traded on a designated market should be classified as a swap. This expansive interpretation of swaps aims to broaden the CFTC's regulatory reach.

Gensler's response challenges this view, arguing that the CFTC's hedging theories for sports bets lack substantial ties to genuine commercial risks. He emphasized that Congress's intent was to limit swaps to those contracts that hedge economic risks, which sports bets do not fulfill.

Further amicus briefs from various stakeholders, including the Indian Gaming Association, argue that prediction markets infringe upon tribal sovereignty, as all gaming activities on tribal lands are mandated to benefit tribes. They claim that Kalshi's operations divert vital revenues from tribes and states to private entities.

Additionally, the American Gaming Association has pointed out that there is no meaningful distinction between sports prediction markets and conventional sports betting, citing Kalshi's own trademark applications linking their services to sports betting activities. Both the AGA and Gensler's briefs assert that these markets do not provide legitimate economic hedges for participants, reinforcing the argument against their classification as swaps.