Judge McMahon's Novig ruling creates a fork in preemption law

A federal judge in New York's Southern District handed down a ruling on Novig's preliminary injunction request that the prediction market industry will be reading carefully for a long time — not because of what it decided, but because of the legal category it used to get there.

Judge Colleen McMahon denied Novig's bid to block New York from enforcing state gambling laws against its sports event contracts. The operative finding was that Novig's contracts do not qualify as swaps under the Commodity Exchange Act. That classification matters enormously, because swap status under the CEA is one of the cleaner paths to federal preemption of state gaming law. Without it, the jurisdictional shelter that prediction market platforms have been sheltering under simply does not attach.

This is where the ruling diverges from the direction Robinhood and Kalshi have been pushing. Both companies are arguing that their contracts are derivatives regulated under CFTC exclusive jurisdiction — a broader claim than swap classification, but one that similarly depends on the CEA preemption framework Congress built through Dodd-Frank. Robinhood's complaint filed in the Eastern District of Missouri states the argument plainly: federal courts have long recognized that CFTC regulation of the national derivatives market is exclusive and preempts state involvement. Kalshi has already obtained temporary restraining orders in New Jersey on substantially the same theory.

McMahon's ruling does not directly address that theory. It resolves a narrower question — whether Novig's specific contracts fit the statutory definition of swaps — and finds they do not. But the finding creates a problem that the broader preemption argument cannot simply step around. If a court can examine the contracts at issue, conclude they fall outside the CEA's definitional architecture, and on that basis allow a state to enforce gambling licensing requirements, then the preemption shield is only as strong as the underlying classification. Platforms that have not had their specific contract structures tested in court are carrying more exposure than their litigation posture suggests.

Robinhood and Polymarket are pursuing different doctrinal paths in Missouri — Robinhood leaning on CFTC exclusive jurisdiction, Polymarket on the Commerce Clause — which tells you something about how much uncertainty exists even among the plaintiffs about which theory is most likely to hold. The Commerce Clause argument does not depend on CEA classification at all, which may be precisely the point. After McMahon's ruling, a theory that does not require a court to find your contracts fit a particular statutory definition starts to look like better architecture.

The standard that emerges from this cluster of cases is not yet settled. What McMahon's ruling establishes is that classification as a DCM-listed product does not automatically confer swap status, and swap status is not automatically assumed. Under the CEA, the definitional work has to be done for each contract type, by each court, on the actual terms. That is the analysis that will determine whether preemption holds — not the platform's federal registration, not the CFTC's general mandate, and not the fact that another court found differently on a different contract a month earlier.