The CME Group has just filed a lawsuit against the Commodity Futures Trading Commission (CFTC) in an attempt to overturn the regulator’s approval of Kalshi’s Bitcoin perpetuals. It marks one of the most significant legal battles in the prediction space.
Importantly, the lawsuit isn’t directed at Kalshi. Instead, CME is challenging the CFTC’s decision to approve the contracts. Don’t worry, we’ll walk you through everything you need to know in this guide, including a breakdown of why the lawsuit came to light, what the CME hopes to achieve, and the factors affecting their chances of success.
At the center of this legal dispute, there is really only one question: Are Bitcoin perpetual contracts futures or swaps? Kalshi, a name that frequently pops up on lists of prediction markets, recently received approval to offer Bitcoin perpetual futures. These contracts have since become incredibly popular, but unlike traditional futures, they have no expiry date.
From the perspective of the CME Group, they argue that no expiration date means they shouldn’t be classified as futures at all. Instead, they believe that perpetuals should be classified as swaps.
The main objective CME wants to achieve is for the CFTC to overturn its approval of Kalshi’s Bitcoin perpetual contracts. If successful, the lawsuit would prevent Kalshi from listing the contracts and reinforce the distinction between futures and swaps under US law.
Another thing that CME has repeatedly stated is that changes to this significant should come from Congress rather than the CFTC. Therefore, it’s also likely that this will be a secondary objective, to help with long-term consistency in the industry.
The biggest factor in this legal dispute will probably come down to whether the US court interprets Bitcoin perpetuals as futures or swaps. Still, several issues will be discussed, including:
Kalshi may be one of the largest prediction markets in the United States, but this lawsuit represents a major challenge. Although the dispute is technically with the CFTC, not Kalshi, it could have huge ramifications on Bitcoin perpetuals. If CME succeeds, Kalshi may lose the ability to offer these contracts on its platform. That said, this lawsuit still has a long way to go, with both sides expected to argue their case in court.

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