Michigan has put Kalshi under a preliminary injunction that keeps its sports event contracts out of the state and backs that order with a potential $500, 000-per-day penalty for noncompliance.
- Kalshi is blocked from Michigan users
- Geofencing and third-party location checks are mandatory
- Daily fines can reach $500, 000
- The legal fight is gambling law versus federal derivatives law
Ingham County Circuit Court Judge Rosemarie E. Aquilina signed the preliminary injunction on Sept. 1, and the Michigan Attorney General’s Office said the order was announced Wednesday. It extends restrictions first imposed under a temporary restraining order in June, keeping Kalshi from offering sports-related contracts to people located in Michigan while the case moves toward a final ruling.
Michigan Attorney General Dana Nessel sued Kalshi in March, arguing the platform violated the Michigan Lawful Sports Betting Act by offering what the state sees as unlicensed sports betting. Kalshi says its contracts are federally regulated derivatives, not gambling products. That distinction is the whole fight. In legal terms, labels matter less than who gets to regulate the thing.
The injunction bars Kalshi from offering, listing, executing, or settling sports-related contracts for users in Michigan. It also requires the company to use geofencing to block Michigan residents, with the court warning that any failure to comply with those geolocation requirements can trigger a $500, 000 per day penalty. The filing at Please provide the HTML content you would like me to lays out the kind of procedural paper trail these cases tend to generate when regulators and exchanges start throwing legal elbows.
That is not a casual warning shot. A daily fine that size is meant to make noncompliance painfully expensive, very fast. It also shows how seriously state regulators are treating prediction markets once they start looking a lot like sportsbooks with cleaner branding.
For readers new to the jargon, a prediction market is a platform where users buy and sell contracts tied to future outcomes. A prediction market in the broader sense is just the market structure itself, while a sports event contract is exactly what it sounds like: a contract whose value depends on a sports result. Geofencing is location-based technology used to block access from users in a restricted area. And a preliminary injunction is a temporary court order that holds things in place while a case is still being litigated.
The practical effect in Michigan is simple: Kalshi cannot serve state users for these sports contracts unless and until the court says otherwise. The injunction stays in place until the court enters a final order.
Kalshi tried to move the case into federal court, but that effort failed. The federal court remanded it back to Ingham County Circuit Court, leaving Michigan’s lawsuit where the state wanted it. That matters because Kalshi’s central defense leans on federal law. The company argues the Commodity Exchange Act and oversight from the Commodity Futures Trading Commission should control, not state gambling rules.
That federal-versus-state clash is the real meat of the dispute. Kalshi says it operates a regulated derivatives market. Michigan says the company is offering sports wagers without local approval. If courts accept Kalshi’s framing, prediction markets could get a much wider lane to offer sports-linked contracts. If states win, those products may be treated as gambling, with licensing and consumer-protection rules attached.
The CFTC angle adds another layer of mess. According to reporting cited by the Michigan Attorney General’s Office, the agency told Kalshi to keep its federally regulated market operating after the state court order and blocked the company from canceling previously executed trades. That does not settle the broader fight, but it does show why this is not a clean “state says stop, company shuts down” situation. Federal oversight is sitting in the room, even if it is not the final judge. A separate report on the issue, CFTC Blocks Kalshi from Canceling Trades Amid Michigan, captures just how awkward that federal intervention has been.
Michigan is not alone in pushing back. Similar battles are playing out across the country as states test whether prediction markets can offer sports event contracts without being treated like sportsbooks. The legal question is blunt: when does a financial contract become gambling in all but name?
Michigan’s position is just as blunt. Dana Nessel said, “Kalshi long attempted to pass itself off as a legitimate gaming operation in our state, and I am relieved that this order further protects Michigan residents from its predatory, unlicensed practices.”
That is about as subtle as a brick to the face, but it captures the state’s view cleanly. Michigan is not treating this as a clever fintech loophole. It is treating Kalshi as an unlicensed sports betting operation dressed up in derivatives language. Kalshi obviously disagrees, and that disagreement now sits in front of a court with teeth.
The size of the injunction also matters beyond Michigan. If courts are willing to require geofencing and levy steep daily penalties, platforms cannot simply wave a federal registration and hope states blink. They will need serious compliance systems, legal firepower, and probably more patience than most founders like to admit they need.
Key takeaways
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Why did Michigan issue a preliminary injunction?
The court found enough reason to temporarily block Kalshi while the lawsuit continues, after Michigan argued the company was violating the state’s sports betting law. -
What must Kalshi do in Michigan?
Kalshi must geofence Michigan users out of its sports-related contracts and follow the court’s restrictions, or face a $500, 000-per-day penalty for noncompliance. -
Does this end Kalshi’s legal fight in Michigan?
No. A preliminary injunction is temporary. It keeps the status quo in place until the court reaches a final ruling. -
Why does the CFTC matter here?
Kalshi argues its contracts fall under federal derivatives law, and the CFTC’s role raises the question of whether federal oversight can override state gambling enforcement in this setting. -
Why should crypto and markets watchers care?
This fight could shape how regulators treat prediction markets, sports-linked contracts, and any product that sits on the line between financial trading and gambling.
Michigan has the upper hand for now. Kalshi is blocked, geofencing is mandatory, and the court has made noncompliance brutally expensive. The larger question is whether prediction markets can keep stretching into sports without getting dragged back into the old, heavily regulated world of gambling law. Right now, at least in Michigan, the answer is no. For a broader look at how these fights are spreading, see CFTC Sues States Over Prediction Markets: Kalshi, and the earlier breakdown on Trump Backs Prediction Markets as CFTC, States Clash Over. If you want the political side of the squeeze, Kalshi Backs Lobbying Push as Prediction Markets Face Legal shows how hard the company is working the halls of power when the courtroom gets ugly.
Further reading
For the legal crossfire around Kalshi and prediction markets, these pieces add useful context.
