States / Michigan
Legal status · as of Oct 15, 2026
Are prediction markets legal in Michigan?
In court
Michigan's attorney general won a TRO and then a preliminary injunction against Kalshi's sports contracts, with a $500,000-a-day penalty. The CFTC used emergency powers to block a court-ordered trade cancellation, and Robinhood (Sept 2026) and Coinbase (Oct 2026) agreed to stop sports contracts in the state.
State actions
Regulator orders, lawsuits, rulings and laws, newest first.
| Date | Action | What happened | Sources |
|---|---|---|---|
| Oct 7, 2026 | Other | Coinbase agrees to stop Michigan sports event contracts by Oct. 10; state forgoes enforcement while Sixth Circuit appeals proceed. (Coinbase) | Michigan Gaming Control Board release (Oct. 7, 2026) primary |
| Sep 4, 2026 | Other | Robinhood agrees to stop offering sports prediction markets in Michigan. (Robinhood) | Legal Sports Report · Covers timeline |
| Sep 1, 2026 | Other | Preliminary injunction requires geofencing, with a $500,000-per-day penalty. (Kalshi) | Michigan AG primary |
| Jul 14, 2026 | Other | CFTC stays Kalshi's rule change and orders open trades honored despite the state order. (Kalshi) | CFTC Release 9267-26 primary |
| Jun 29, 2026 | Other | State court TRO halts Kalshi sports contracts and advertising. (Kalshi) | Michigan AG primary |
| Jun 19, 2026 | Other | Federal judge denies Polymarket's bid to block Michigan enforcement. (Polymarket) | PlayMichigan |
| Mar 5, 2026 | Lawsuit | AG Dana Nessel sues Kalshi in Ingham County Circuit Court under the Lawful Sports Betting Act. (Kalshi) | Michigan AG primary |
Cases involving Michigan
Select a case for its full history and sources, or see the legal tracker.
Prediction markets in Michigan: questions
Are prediction markets legal in Michigan?
In court. Michigan's attorney general won a TRO and then a preliminary injunction against Kalshi's sports contracts, with a $500,000-a-day penalty. The CFTC used emergency powers to block a court-ordered trade cancellation, and Robinhood (Sept 2026) and Coinbase (Oct 2026) agreed to stop sports contracts in the state. Exchanges registered with the CFTC, including Kalshi, say federal law lets them offer event contracts in every state; that question is being fought in court. This summarizes public actions and is not legal advice.
What is the latest prediction market action in Michigan?
Oct 7, 2026: Coinbase agrees to stop Michigan sports event contracts by Oct. 10; state forgoes enforcement while Sixth Circuit appeals proceed.
Is there a lawsuit over prediction markets in Michigan?
Yes. Coinbase v. Michigan (U.S. District Court for the Eastern District of Michigan): PI denied; appeal stayed; Coinbase agreed to halt Michigan sports contracts. Robinhood & Polymarket v. Michigan (U.S. Court of Appeals for the Sixth Circuit; U.S. District Court for the Western District of Michigan): PIs denied; appeals pending; Robinhood paused Michigan sports contracts. Michigan AG v. Kalshi (Circuit Court for the 30th Judicial Circuit (Ingham County), Michigan; U.S. Court of Appeals for the Sixth Circuit (removal appeal)): Preliminary injunction in effect.
This page reports court, regulator and legislative actions with links to the filings and coverage. It is not legal advice. The tracker is re-checked every Monday and Thursday. All states · Legal tracker