Coinbase Financial Markets has switched off new sports event contracts for its Michigan customers and closed out every remaining open position, meeting the midnight-Eastern cutoff on Saturday, October 10, set in its agreement with the Michigan Gaming Control Board. The regulator announced the deal on October 7, covering sports contracts listed on KalshiEX and other federally registered designated contract markets (DCMs). In exchange, Attorney General Dana Nessel and the gaming board agreed to hold off on enforcement action while Coinbase stays compliant and while related appeals work through the federal Sixth Circuit court of appeals. Coinbase is the third prediction-market operator Michigan has neutralized: Robinhood signed a near-identical deal in September, and Kalshi is operating under a state-court preliminary injunction. The agreement deliberately leaves the core question unanswered — whether event contracts listed on federally registered exchanges count as gambling under state law — with both sides keeping every legal argument for the appeals ahead.
Ohio is running the same playbook, faster. Its Casino Control Commission issued cease-and-desist notices to ten prediction-market operators and brokers — Coinbase and Robinhood among them — demanding each confirm in writing by October 16 that sports event contracts are no longer offered in Ohio. The letters were dated October 2.
Why it matters
The legal backdrop turned on September 25, when a Sixth Circuit panel ruled in Kalshi's Ohio and Tennessee cases that sports event contracts fall outside the "swaps" category — the derivative classification at the heart of the industry's federal-regulation argument — and that the Commodity Exchange Act does not preempt state sports-betting statutes. That decision is what gave Ohio the confidence to fire off its notices a week later, and it hangs over Michigan's cases too, since the same court is hearing them. Coinbase has already felt the shift firsthand: Judge Shalina Kumar denied its preliminary-injunction bid during August 2026, finding the company had not made the case that federal commodities rules preempt Michigan's authority over the contracts. Its appeal is alive but stayed while the Sixth Circuit works through related cases touching Robinhood, Polymarket and Kalshi.
The compliance-heavy posture fits a company that just won the federal government's trust with its institutional arm — US government wallets shifted $770 million of seized Bitcoin into Coinbase Prime this week, and the last thing Coinbase needs is a state gambling fight bleeding into its regulated businesses. Even as Michigan and Ohio clamp down, the global picture is mixed: Thailand just approved Bitcoin and Ether ETFs set to launch October 16, a reminder that regulatory doors are opening elsewhere. The federal appeals courts are now split — the Sixth and Ninth Circuits have backed the states while the Third Circuit held federal rules override New Jersey's regulation — and New Jersey has asked the Supreme Court to take its case, a decision the justices have not yet made.
What to watch
- October 16 — Ohio's written-confirmation deadline for the 10 operators. A quiet compliance wave validates the state's theory and invites copycats. A refusal means fines and court fights.
- The Sixth Circuit's consolidated appeals involving Coinbase, Robinhood, Polymarket and Kalshi. The ruling that actually settles the Michigan question.
- Whether the Supreme Court takes New Jersey's case on the Third Circuit's federal-preemption ruling.
- Copycat enforcement. Whether other state attorneys general replicate Ohio's cease-and-desist model in the coming weeks.
MarketRadar take
| Date | What happened |
|---|---|
| Aug 2026 | Federal court denies Coinbase's preliminary injunction request (Judge Shalina Kumar) |
| Sep 9, 2026 | Robinhood Derivatives reaches Michigan deal; new sports contracts stop the same day |
| Sep 25, 2026 | 6th Circuit: Kalshi's sports contracts fall outside the "swaps" category; the Commodity Exchange Act does not preempt state sports-betting statutes |
| Oct 2, 2026 | Ohio's Casino Control Commission issued cease-and-desist notices to ten operators and brokers, incl. Coinbase and Robinhood |
| Oct 7, 2026 | Michigan Gaming Control Board announces the Coinbase agreement |
| Oct 9, 2026 | Robinhood's Michigan position-close deadline passes |
| Oct 10, 2026 | Coinbase Michigan deadline: no new contracts, all open positions closed |
| Oct 16, 2026 | Ohio's written-confirmation deadline for the 10 operators |
The deal is a tactical pause, not a concession — Coinbase kept every argument for the appeals, including federal preemption. But the direction is unmistakable: with the Sixth Circuit's "not swaps" finding on the books, states are building a coordinated enforcement regime while Washington stays silent, and sports contracts are losing US market access state by state regardless of how the federal question eventually resolves. Direct revenue impact on Coinbase looks small — these contracts are a side line next to its spot and institutional businesses — but the case will write the operating rules for every CFTC-registered platform touching sports. Ohio's October 16 deadline is the next checkpoint: watch whether the 10 operators comply quietly or choose to fight.
