Crypto.com, Novig sue Missouri over sports event contracts; Kalshi, Polymarket, Robinhood hold off

Event contracts tied to sports outcomes sit in a gray zone that state gambling regulators and the federal Commodity Futures Trading Commission have both claimed this year, with Kalshi's sports-linked contracts already drawing cease-and-desist orders from gaming regulators in Nevada, New Jersey and Massachusetts before Missouri sent its own notices to Crypto.com, Novig, Kalshi, Polymarket, Robinhood and Underdog. Missouri gave the platforms 30 days to comply or stop offering the contracts to its residents, treating them as unlicensed sports wagers under state law rather than as federally regulated derivatives.

Crypto.com and Novig have chosen confrontation over compliance, filing separate federal suits that ask a court to bar Missouri officials from enforcing the cease-and-desist orders while the cases proceed. Kalshi, Polymarket, Robinhood and Underdog have taken the opposite path for now, continuing to operate in Missouri without suing, which leaves them exposed to the same enforcement action the two litigants are trying to block. Missouri bettors and traders on these platforms are left watching a split strategy: some operators betting on a federal injunction, others betting that the state will not move first against the companies that haven't sued.

The real fight is over which regulator gets the last word on contracts that pay out on a game's result: a state gambling commission applying decades-old wagering statutes, or the CFTC applying the Commodity Exchange Act to instruments it treats as financial derivatives. Crypto.com and Novig are effectively asking a federal court to say that Missouri's gambling law is preempted the moment a contract is listed on a CFTC-regulated exchange, a claim that, if accepted, would strip states of authority over a fast-growing category of consumer products sold under a sports-betting label. That is a legitimate legal question, not a settled one, and treating it as settled in either direction misreads how contested federal preemption of state gambling law actually is.

The Missouri federal court's ruling on whether to grant the requested injunction is the near-term marker: a win for Crypto.com and Novig would hand the industry a template to challenge the cease-and-desist orders Kalshi, Polymarket, Robinhood and Underdog are currently sitting on, while a loss would make Missouri's compliance deadline enforceable and push every platform toward the same choice the two litigants just made. Whether Kalshi, Polymarket, Robinhood or Underdog file their own Missouri suits once that ruling lands will show whether the industry is converging on a single legal strategy or continuing to hedge state by state.