US Crypto Perpetuals: Inside the CFTC Futures vs Swaps Lawsuit

Why CME Argues US Crypto Perpetuals Should Be Classified as Swaps

US crypto perpetuals spent years offshore. In 2026 they finally reached regulated American exchanges, and a legal fight over their label followed almost at once.

The CFTC approved the first Bitcoin perpetual as a futures contract on May 29, 2026. Chicago Mercantile Exchange Inc., part of CME Group, sued on June 18 and argued that contracts without expiry dates are really swaps.

The label matters because it decides which rules apply and who can list the product. The article covers how perpetuals work, what each side argues, how Kalshi, Coinbase, and Kraken built their versions, and what remains open.

What Are US Crypto Perpetuals, and How Do They Work?

Perpetual futures are derivative contracts that follow an asset's price without a set expiry date. A trader can hold one as long as the margin, the collateral posted to keep a position open, stays above the required level.

A normal futures contract meets the spot price on its expiration day. Perpetuals use a funding rate instead, which is a regular payment between long traders, who bet on a rise, and short traders, who bet on a fall.

When the perpetual trades above spot, longs pay shorts. When it trades below spot, shorts pay longs.

Kraken explains on its US perpetual futures page that funding settles as one cash adjustment at 3:00 pm CT each day. The same page says the contracts trade around the clock, apart from maintenance windows.

The lack of an expiry date is the whole legal story, and an explainer on perpetual markets without expiration shows why that single feature draws so much attention.

How Did the CFTC Bring Perpetuals Onshore in 2026?

The path started earlier. On April 21, 2025, the CFTC asked for public comment on perpetual-style derivatives.

Coinbase Derivatives then introduced five-year perpetual-style futures in July 2025. Its own page describes them as long-dated contracts with a funding mechanism and round-the-clock trading.

The main step came on May 29, 2026. The CFTC issued an order approving the Bitcoin perpetual from KalshiEX as a futures contract.

That order also covered similarly structured perpetuals on digital commodities with deep, active spot markets. A policy statement sent perpetuals on other assets, such as metals or stocks, to case-by-case review.

On June 12, 2026, CFTC staff issued a no-action letter. It let Bitnomial and Coinbase Derivatives convert certain existing contracts into perpetuals by removing their expiry dates.

The two agencies had also signed a coordination agreement in March 2026, which links this story to the wider debate over CFTC and SEC jurisdiction in crypto.

Why Does CME Say Perpetuals Are Swaps, Not Futures?

CME filed its complaint on June 18, 2026, in the US District Court for the District of Columbia. It names the CFTC and Chairman Michael Selig and challenges both the Kalshi order and the policy statement.

The argument rests on one gap. A futures contract traditionally points to a delivery or settlement date, and a perpetual has none, so CME says it fits the definition of a swap under Dodd-Frank.

Dodd-Frank is the post-crisis law that built a separate rulebook for swaps. CME contends the distinction changes margin, registration, and tax treatment.

CME also says the CFTC approved the Kalshi product one day after submission, without public comment or formal rulemaking.

How Is the CFTC Defending Its Approval?

The CFTC filed a motion to dismiss on September 2, 2026, calling the case "much ado about nothing." Most of that filing targets whether CME has the right to sue, not whether perpetuals are futures.

The agency argues CME has not shown a concrete injury. It points out that the order lets any registered exchange, including CME, list the same contracts.

It adds that a swap label would not fix CME's complaint, because Kalshi and others could keep offering the contracts under that label. A reply brief followed on October 16, 2026.

The case sits before Judge Colleen Kollar-Kotelly. No ruling on the motion has been reported as of November 13, 2026.

Does the Stock Perpetual Lawsuit Change the Picture?

On November 3, 2026, the CFTC chairman said perpetuals on individual stocks could begin trading on exchanges registered with both agencies, as set out in the CFTC's statement on equity perpetuals.

A coalition of traditional market firms sued in a New York federal court the same day. It argues stock perpetuals are security-based swaps, which Dodd-Frank limits for retail investors.

That case covers equities, not crypto. Still, it tests the same question of whether a contract with no expiry is a future or a swap.

How Do Exchanges Structure Their Perpetual Contracts?

The official pages of the three exchanges tied to the dispute show three different designs.

Kalshi's perpetuals page shows maximum leverage differing by contract and carries a warning that perpetual futures involve substantial risk of loss.

Onchain venues work differently. They settle trades through smart contracts instead of a regulated exchange operator, a model detailed in a piece on how Hyperliquid handles perpetual contracts.

Which Risks Could Affect Traders and Exchanges?

• Legal outcome: If a court decides perpetuals are swaps, exchanges may have to redesign, relist, or pause some products. For now, nothing changes. The futures classification stays in place until a court says otherwise.

• Margin and liquidation: When account equity falls below maintenance margin, positions close automatically. Kraken lists a $10 liquidation fee for accounts that trade only perpetuals, so a forced exit carries a direct cost on top of the loss.

• Funding costs: In strongly trending markets, funding rates can climb a lot, as Kraken itself warns. If funding goes unpaid, it eats into margin and moves liquidation closer than a trader might expect.

• Contract changes: Kraken Derivatives US can add or remove contracts at any time. When a contract is delisted, open positions are closed beforehand, so traders can’t simply hold through it.

• Open rulemaking: The CFTC and SEC asked for public comment on swap definitions in June 2026. That leaves the wider framework open to change, and the rules traders work under today may not be the final ones.

Expert Analysis: What the Label Really Decides

The lawsuit looks technical, yet it decides who writes the rulebook. Futures follow an exchange and clearinghouse system built over decades, while swaps follow rules created after 2008.

The CFTC's reading rests on cash settlement, a deep spot market, and a funding rate that does the job expiry does in dated futures. CME's reading rests on one missing feature, the expiry date.

The filings also suggest competition plays a part. CME lists its own crypto futures, and the CFTC says the order lets CME list perpetuals too.

Because the CFTC's motion leans on standing, a ruling could end the case without settling the label. In that outcome, US crypto perpetuals would keep trading as futures while the legal question stays open for the next challenger.

Onchain markets show how large the global product already is, as the explainer on onchain perpetual trading describes, and that scale helps explain why the CFTC wants a domestic version.

Conclusion

US crypto perpetuals now trade on CFTC-registered venues under a futures label approved on May 29, 2026. CME's lawsuit asks a court to say that label is wrong.

What stands out is how much hangs on one missing expiry date. What remains uncertain is whether the court will reach that question or stop at standing.

The next items to check are the ruling on the motion to dismiss, the outcome of the joint CFTC and SEC comment process, and each exchange's own contract terms.

Disclaimer: 

This article is for information only and is not financial, legal, or investment advice. Perpetual futures involve substantial risk, including the loss of all margin posted. Legal outcomes remain uncertain, so independent research is advised before any decision.