Michigan Judge Orders Kalshi Out on Seven Grounds
A $500K daily fine backs a preliminary injunction that could reshape prediction-market regulation nationwide.
Michigan Circuit Court Judge Rosemarie Aquilina ordered prediction-market platform Kalshi to halt all sports event contracts in Michigan and geoblock the state, threatening a $500,000 daily fine for non-compliance, according to SBC Americas.
Why It Matters
State-level enforcement is now the sharpest constraint on federally regulated prediction markets, and this ruling illustrates exactly how. Judge Aquilina granted Michigan Attorney General Dana Nessel a preliminary injunction on seven distinct legal grounds — a multi-pronged finding that will be difficult for Kalshi to unpick on appeal. A $500,000-per-day penalty structure is punitive enough to force immediate compliance regardless of the ultimate legal outcome. For other prediction market operators watching from the sidelines, Michigan signals that state AGs are willing to move aggressively, even against platforms operating under federal CFTC oversight.
Context
Kalshi secured CFTC authorization to offer event contracts, including sports-related markets, positioning itself as a legally distinct product from traditional sports betting. Several states, including Michigan, have pushed back, arguing that sports event contracts functionally constitute sports wagering and therefore fall under state gambling jurisdiction. As of September 2026, the tension between federal commodities law and state gambling statutes remains unresolved at the appellate level.
What's Next
Kalshi will likely seek an emergency stay pending appeal; the seven-part injunction basis means any reversal requires dismantling multiple concurrent findings. Watch for a Michigan Court of Appeals filing within days — and for other state AGs to assess whether Aquilina's reasoning gives them a replicable template.
Gambling involves risk. This article is editorial analysis, not legal or financial advice.
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