CFTC proposes new swap definition to regulate prediction markets

The Commodity Futures Trading Commission wants to settle one of the messiest turf wars in American finance. Its tool is a definition.

The agency has proposed folding event contracts tied to sports, politics, culture and weather into its legal definition of swaps. That would place prediction markets more firmly under federal oversight, at a moment when several states argue those markets are gambling in a nicer suit.

Two rules, one dividing line

The CFTC moved on two fronts at once. On October 9, 2026, it issued an Interim Final Rule alongside a Notice of Proposed Rulemaking.

The interim rule handles the exclusion side of the ledger. It states that casino-style gambling products, including sports wagers and casino games, do not count as swaps under the Commodity Exchange Act.

The proposed rule handles inclusion. It would bring event contracts based on sports, politics and weather inside the swap definition.

The proposal has a specific target. It focuses on event contracts traded on CFTC-registered designated contract markets, known as DCMs.

DCMs are federally registered exchanges, the regulated venues where futures and similar products change hands. Putting the line there means the product’s home matters as much as the product itself.

The timeline moved fast by Washington standards. The CFTC sent the rules to the White House on September 28, 2026, and they were issued less than two weeks later.

Both actions now go out for public input. Comments on the interim rule and the proposal are due within 30 days of publication.

Why the CFTC is drawing this line now

The timing is not random. Several states contend that platforms such as Kalshi and Polymarket violate their gambling laws.

The CFTC has taken the opposite view. The agency maintains that it holds exclusive federal jurisdiction over these markets.

CFTC Chairman Michael S. Selig has stated that event contracts fall within the commission’s regulatory remit. The new rulemaking reads as an effort to put that position into formal regulation rather than leave it to argument.

Courts have not delivered a clean answer. Circuit courts have issued split decisions on the question.

Some rulings have sided with state authority over event contracts. Others have upheld federal preemption for markets registered with the CFTC.

Federal preemption is the legal principle that federal law can override state law in certain areas. If it applies, state gambling regulators would have limited power over a CFTC-registered prediction market.

What this means for prediction markets

The core move here is definitional, and definitions carry real weight in financial law. Whether something counts as a swap determines which regulator gets to write the rules, inspect the books and bring enforcement actions.

By tying event contracts to the swap definition, the CFTC is trying to anchor prediction markets in federal derivatives law. By excluding casino-style products in the same breath, it signals that it is not claiming authority over every bet placed in America.

The proposal’s answer appears to rely heavily on venue. An event contract listed on a CFTC-registered DCM is treated differently from a wager placed with a state-licensed operator.

The comment period is the next step to watch. Over the 30 days following publication, platforms, state officials, consumer advocates and exchanges will all have a chance to push back or push for changes.

For Kalshi, Polymarket and the rest of the sector, the stakes are existential in a quiet, paperwork-heavy way. Being labeled a swap market or a gambling operator decides who they answer to, where they can operate and how fast they can grow.