New York sues Kalshi over prediction markets, seeking emergency stop and up to $36 billion in damages

New York Attorney General Letitia James filed a lawsuit against Kalshi in New York Supreme Court in Manhattan on Friday, arguing that the prediction market platform is operating an illegal gambling business. For high-risk payments players, the point is not just the lawsuit itself: New York is trying to force a platform that sits in the CFTC orbit into state gaming law, which is exactly the kind of jurisdictional fight that can change where risk is booked and who gets to police it.

1. James asked the court for a temporary restraining order against Kalshi and proposed a damages formula that could reach as much as $36 billion. New York Gov. Kathy Hochul backed the filing in a joint statement, saying Kalshi had “chosen to ignore New York’s gaming laws” and that the state was acting to stop “illegal behavior” and bring the company into compliance.
2. Kalshi, which is based in New York, moved quickly and filed a petition to shift the case to federal court within hours of James’ filing. The company called the state case “political theater from the leadership in our own state,” and it had already filed a petition in federal court in October seeking to block New York from taking enforcement action against it.
3. The procedural history matters here: on July 8, U.S. District Judge Analisa Torres rejected Kalshi’s injunction against New York, and a federal appeals court upheld that decision on Wednesday. That left the company exposed to the state action that James filed on Friday.
4. This is not New York’s first clash with prediction markets or adjacent crypto names. James filed similar petitions in April against Coinbase and Gemini. New York is also one of nine states being sued by the Commodity Futures Trading Commission (CFTC), which says it has exclusive jurisdiction over markets it defines as swaps.
5. Kalshi and the CFTC were both trying to get ahead of the state filing. Late Thursday night, the CFTC filed an “emergency” motion in federal court to stop New York from subjecting Kalshi to state gambling laws, calling the move “overreach” that would irreparably harm the agency and the markets it regulates, according to Reuters. Kalshi echoed that line, saying New York was trying to place itself “in the position of a nationwide derivatives regulator” and to “fundamentally subvert” the CFTC’s exclusive jurisdiction.

Kalshi is a CFTC-registered Designated Contract Market (DCM), meaning a derivatives exchange structure that is often used by agriculture, energy and other businesses to hedge risk. That makes the dispute useful reading for PSPs and acquiring teams: when a venue straddles derivatives regulation and state gambling law, the next fight is often not about product design, but about which regulator gets to decide whether the product can exist at all.