CFTC proposes rules defining when event contracts are contrary to the public interest

What happened

The CFTC published a notice of proposed rulemaking, 'Prediction Markets; Public Interest Determinations', in the Federal Register on 12 June 2026, and sought public comment on when event contracts involving enumerated activities should be treated as contrary to the public interest under the Commodity Exchange Act. A separate prediction-markets notice had been published on 16 March 2026. Reporting on the proposal indicates it would permit certain sports event contracts while restricting categories such as contracts on individual player injuries and player-specific propositions. The proposal followed an April 2026 letter from congressional Democrats urging the Commission to act on sports contracts and insider trading, and moves by Kalshi and Polymarket to introduce their own insider-trading controls. Several US states have separately sought authority over prediction markets, and litigation over the boundary between state gaming law and federal derivatives regulation continues.

Why it matters

Prediction markets are now large enough that the question of what may be listed is a market-design question rather than a novelty. Where the CFTC draws the public-interest line determines whether event contracts remain a general-purpose mechanism for pricing uncertainty or become a regulated sports-adjacent product with carve-outs. The insider-trading dimension is the more consequential economic issue: event contracts on discrete, privately observable outcomes have a much sharper adverse-selection problem than contracts on aggregate variables, and the rules the Commission adopts will set the disclosure and surveillance standard for the whole category.

What is not settled

The comment period outcome and final rule text are pending, and the federal-state jurisdictional dispute over prediction markets is unresolved in litigation.