CME Group is taking the Commodity Futures Trading Commission to court over the agency's decision to let Kalshi offer bitcoin perpetual futures. CEO Terrence Duffy announced the lawsuit Tuesday on CNBC's 'Fast Money,' saying the exchange would file litigation that same day. The move escalates a fight over how the U.S. should regulate crypto derivatives — and who gets to offer them.
The classification fight
At the heart of the lawsuit is a technical but critical question under the Dodd-Frank Act: are perpetual futures swaps or futures? CME argues they're swaps, which would subject them to a different set of rules — including mandatory clearing through a derivatives clearing organization. Kalshi's approval, granted in late May 2025, was the first of its kind in the U.S. for a crypto perpetual contract.
Duffy also claimed CME holds exclusive licenses on key market benchmarks. He argued that any competing perpetual product would need to route through CME regardless of how the CFTC classifies it. The exchange's legal team will try to convince a judge that the CFTC overstepped its authority.
CFTC fires back
CFTC Chair Michael Selig defended the approval as a way to bring crypto derivatives under domestic regulation rather than pushing activity offshore. A CFTC spokesperson called the planned lawsuit 'frivolous.' The agency is unlikely to back down, meaning the case could drag on for months.
The timing isn't great for CME internally. Duffy is set to step down as CEO in March 2027, with President and CFO Lynne Fitzpatrick slated to become the exchange's first female chief. A drawn-out legal battle would fall largely on her watch.
What's at stake for crypto derivatives
Bitcoin perpetual futures are wildly popular on offshore exchanges like Binance and Bybit. The CFTC's approval of Kalshi's product was seen as a first step toward bringing that liquidity onshore. If CME wins, it could slam the door on any non-CME perpetual product — or force a regulatory rethink that delays the market for years.
If CME loses, other exchanges will likely line up to offer similar contracts, and the CFTC's classification framework will face continued scrutiny.
A separate ruling on prediction markets
In a related regulatory skirmish, a federal judge in Michigan denied Polymarket's request for a preliminary injunction against state regulators. The judge ruled that sports-related prediction market wagers are not swaps and fall outside CFTC jurisdiction. The decision doesn't directly affect the CME case, but it shows courts are wrestling with similar classification questions across the crypto derivatives space.
The lawsuit against the CFTC is expected to be filed by end of day Tuesday. No court has been named yet.
