The fight between the world's largest derivatives exchange and the prediction market upstart that has been eating its lunch just got personal.
CME Group has sued the CFTC over the regulator's decision to let Kalshi — and by extension Coinbase — offer perpetual futures contracts. At the center of the dispute is a simple question: are crypto perpetual futures swaps under Dodd-Frank, or something else entirely? CME says they're swaps and should be traded on a SEF. The CFTC says otherwise. Kalshi, which started as a prediction market for events like elections and economic data releases, now finds itself in a turf war with the 178-year-old exchange that dominates traditional futures trading.
Why CME Is Worried
Perpetual futures — contracts with no expiry date — are the most traded crypto derivative in the world. On offshore exchanges like Binance and Bybit, perpetuals generate tens of billions in daily volume. Until recently, U.S. traders couldn't access them through regulated venues. That changed when the CFTC approved Kalshi's perpetual futures product, opening the door for Coinbase to launch its own perpetuals on U.S. soil.
For CME, this is a direct threat. The exchange offers Bitcoin and Ether futures, but those contracts expire quarterly — a structure that doesn't suit crypto traders who prefer the flexibility of perpetuals. If Kalshi and Coinbase capture the U.S. perpetuals market, CME's crypto futures volume could stagnate. CME CEO Terrence Duffy has argued publicly that the CFTC is creating an uneven playing field by letting Kalshi offer products that CME itself cannot under its current regulatory framework.
The lawsuit is essentially CME asking a court to force the CFTC to treat Kalshi's perpetuals as swaps, which would subject them to SEF trading rules — rules that Kalshi's platform wasn't built for. If CME wins, Kalshi's perpetuals product could be gutted. If CME loses, the door stays open for more competitors to enter the U.S. crypto derivatives market. For more on the CFTC's approach to crypto derivatives, see our coverage of the CFTC's proposal to end the SEF order book mandate.
The Prediction Market Angle
Kalshi's expansion from prediction markets into crypto derivatives is part of a broader trend. The company started by offering event contracts — bets on outcomes like election results, economic indicators, and weather events — and has gradually moved into financial derivatives. The CFTC approved Kalshi's event contracts over the objections of several states, using emergency authority to keep the platform operating while litigation plays out.
The fight has drawn in multiple parties. Nine states have sued to block Kalshi's sports prediction markets, arguing that the CFTC doesn't have jurisdiction over sports betting. The CFTC countersued those states, creating a multi-front legal battle that could reshape the regulatory landscape for prediction markets and crypto derivatives alike. For more on the prediction market growth, see our coverage of prediction markets hitting a record $50.6 billion in July volume.
What's at Stake
The outcome of this fight will determine who gets to offer crypto perpetual futures in the United States and under what rules. If the CFTC's approach holds, expect more platforms to launch perpetuals products, creating a competitive market that could drive down fees and improve liquidity. If CME prevails, perpetual futures could be confined to SEF trading, limiting access and potentially pushing volume back to offshore exchanges.
The dispute also highlights a broader tension in crypto regulation: traditional financial institutions want a level playing field, while crypto-native platforms argue that applying old rules to new products stifles innovation. The CFTC has been trying to balance these competing interests, but the CME lawsuit suggests that balance has not yet been achieved.
