New York just dropped one of the largest lawsuits in the history of prediction markets. Attorney General Letitia James and Governor Kathy Hochul filed suit against KalshiEx LLC on July 30, alleging the platform has been running an unlicensed gambling operation right under the state’s nose.

The price tag New York is asking for: at least $36 billion in compensatory damages, pending a full accounting of Kalshi’s activities.

What New York is actually claiming

The lawsuit alleges that Kalshi offered event contracts centered on sports, elections, and other outcomes to New York residents without obtaining the necessary state gaming license. The state isn’t just seeking to shut Kalshi down in New York. Officials want full restitution for users, disgorgement of profits, and civil penalties stacked on top of that eye-watering $36 billion damages figure.

New York officials also raised concerns about consumer protection, underage exposure, and addiction risks.

Kalshi doesn’t see itself as a gambling platform at all. The company is registered with the Commodity Futures Trading Commission (CFTC) and has long argued that its event contracts are regulated financial instruments. But New York isn’t buying that distinction.

The legal chess match leading up to this

On July 7, a federal judge denied Kalshi’s preliminary injunction request against enforcement of New York’s gambling laws. Kalshi had essentially asked the court to declare that federal CFTC oversight preempts state gambling regulations. The judge said no. Kalshi has appealed that decision, but the denial clearly emboldened New York to go on offense with this full-blown lawsuit just three weeks later.

The core legal question is one that could define the future of prediction markets nationwide: does federal regulation by the CFTC exempt a platform from state gambling laws? Kalshi says yes. New York says absolutely not.

The numbers behind Kalshi’s growth

The platform reported over $1 billion in monthly user betting during 2025. Perhaps more telling: 90% of that action was on sports events.

By June 2026, Kalshi’s monthly trading volume had ballooned to $33 billion. That kind of volume explains why New York is asking for damages measured in the tens of billions rather than millions.

What this means for prediction markets and crypto

If New York wins, it creates a template that other states can follow. Any prediction market platform operating without state gaming licenses could face similar lawsuits, effectively forcing platforms to either obtain gambling licenses in every state they operate or restrict access to only states where they’ve cleared regulatory hurdles.

For the crypto industry, the implications are particularly sharp. Several blockchain-based prediction market protocols, most notably Polymarket, operate in similar gray areas. A ruling that event contracts constitute gambling under state law could send regulatory shockwaves through the decentralized prediction market space as well.