CME Group plans to sue the Commodity Futures Trading Commission over the agency’s approval of crypto perpetual futures, the world’s largest derivatives exchange operator announced Wednesday evening on CNBC. Outgoing Chief Executive Terrence Duffy said the case would be filed as soon as Thursday and would argue the contracts should be regulated as swaps under the Dodd-Frank Act.

Duffy disclosed the plan in a Fast Money interview on Wednesday and said CME had spent eight months preparing the challenge with its board. The suit targets the CFTC’s late-May approval of Kalshi’s BTCPERP contract and a parallel action clearing Coinbase to route US customers to its offshore Deribit affiliate. CME later confirmed the filing plan to CNBC. A CFTC spokesperson called the planned action “frivolous.”

The statutory theory turns on a definitional line drawn in the Dodd-Frank Act. The Commodity Exchange Act defines a futures contract by reference to a delivery or expiration date. Perpetual contracts have neither; the two sides exchange periodic funding payments to keep the contract price tethered to spot.

“Under the Dodd-Frank Act, it clearly defines what a swap is and what a future is, and when there’s two parties exchanging payments to each other, that’s deemed a swap,” Duffy said on the broadcast. He said the funding-rate mechanism brings perpetuals inside the swap definition.

Swaps and Futures Distinction

That distinction is not cosmetic. Swaps and futures sit under different sections of the Commodity Exchange Act, with different clearing, reporting, and margin regimes. Federal margin rules require a five-day margin period of risk for cleared swaps and a one-day window for futures, a gap that determines collateral economics for any venue listing the product.

Christopher Perkins, CEO of Coinbase Asset Management, posted on X that a swap designation would likely keep perpetuals offshore because more than twice the margin would be required for basic compliance. He has called the suit incumbent defense.

The procedural attack is narrower. The CFTC cleared Kalshi’s BTCPERP on May 29 under Section 40.2 self-certification, a rule that lets a designated contract market list a new product on one business day’s notice. Duffy says the longer Section 40.3 review, which opens a public-comment window, applies to novel and complex products.

“They did the review in less than 24 hours, which is a 40.2 self-certification for a novel and complex product, which troubled me,” Duffy said at the Piper Sandler Global Exchange and Trading Conference on June 4, per a Markets Media account. The suit is expected to challenge the agency’s use of the faster track.

CFTC Chair Michael Selig has defended both approvals. “It’s time to approve regulated futures contracts that have no expiration date,” he told CNBC’s Fast Money earlier this week, per a Bitcoin Magazine account of the broadcast. The agency followed the May approval with a June 13 no-action letter giving designated contract markets a path to convert existing perpetual-style futures into true perpetuals.

The competitive stakes for CME are direct. CME runs the dominant US crypto futures complex, with bitcoin and ether contracts capped at roughly 5-to-1 leverage and dated quarterly settlement. Kalshi’s BTCPERP and Coinbase’s routing arrangement open onshore access to a product that has driven the bulk of offshore crypto trading for years, often at 20-to-50 times leverage in regulated venues and higher elsewhere.

Exclusive Licenses

Duffy said CME holds exclusive licenses on the crypto-market benchmarks that competing contracts would reference. “All of these would have to go through CME regardless of the perpetual,” he said. Kalshi’s contract is now live, and the prediction-market venue filed in early June to add perpetuals on 12 altcoins beyond bitcoin.

A court ruling reclassifying the products as swaps would force the venue and its competitors into a different rulebook mid-rollout, with new compliance costs and the possibility of temporary delisting while the regime is rewritten. Such an outcome would also reach Coinbase’s Deribit-routed offering and any DCM that converts under the June no-action path.

The litigation lands in a term already marked by venue fights at the CFTC. A federal judge in the Western District of Michigan on Wednesday denied Polymarket a preliminary injunction against state regulators and ruled that sports-related prediction-market wagers are not swaps and fall outside CFTC jurisdiction.

Judge Paul L. Maloney wrote that the agency’s interpretation of its own authority was “so vast that it would encompass vast swaths of activity never understood to be associated with the financial industry.” The language lands awkwardly for the agency as it heads into a separate swaps-classification fight with its largest registered exchange.

CME Succession

The timing also threads through CME’s own succession. The same day Duffy announced the suit, the company named CFO Lynne Fitzpatrick as his successor. Duffy hands over the chief executive role on March 1, 2027 and stays on as executive chairman. That puts the lawsuit in Fitzpatrick’s inbox before she takes the chair.

Duffy’s earlier critique of US-regulated perpetuals as “a disaster waiting to happen” framed the venue’s policy posture; the filing converts that posture into a legal claim. Katherine Kirkpatrick Bos, general counsel of Starkware, wrote on X that the CFTC’s position on perpetuals is sound and that she did not expect CME to prevail.

Court venue and named defendants will publish with the filing itself. CME has not disclosed which district it intends to file in, the named CFTC officers, or whether the action will be a direct petition for review of the agency’s order or a broader administrative-procedure challenge.