Prediction Markets Face Global Crackdown: CFTC Sues New York, Brazil Bans 28 Platforms, Soldier Charged
Prediction markets absorbed coordinated pressure from multiple jurisdictions on April 24 and 25, 2026, as a federal regulator sued New York, Brazil blocked 28 platforms, and a U.S. Army soldier became the subject of the first-ever CFTC insider trading case involving event contracts. The three developments, arriving within hours of each other, form a pattern that deserves to be read as a whole rather than as isolated incidents. Each one adds a piece of evidence to the same underlying argument: prediction markets have outgrown the regulatory frameworks built to contain them.
Federal vs. State: The CFTC Opens a New Front
The Commodity Futures Trading Commission filed suit against New York in the U.S. District Court for the Southern District of New York, arguing that federal law grants the agency “exclusive jurisdiction” over commodity futures, options, and swaps traded on federally regulated exchanges. The filing came days after New York Attorney General Letitia James sued Coinbase and Gemini over prediction market contracts she characterized as illegal gambling. New York had also previously targeted Kalshi over sports wagering. CFTC Chairman Mike Selig, four months into his tenure, called the state actions “an onslaught” undermining federal authority, and his agency has now sued Arizona, Connecticut, Illinois, and New York on the same jurisdictional theory. Against that position, 37 state attorneys general including James signed a legal brief arguing that Kalshi’s preemption theory “threatens the States’ longstanding ability to protect their citizens.” Wisconsin filed its own suit on April 23 against Kalshi, Robinhood, Coinbase, Polymarket, and Crypto.com, seeking injunctions under state gambling law and a public nuisance declaration.
Brazil Acts, and a Soldier’s Bets Come to Light
Brazil’s National Monetary Council moved on April 24 to ban non-financial prediction market contracts outright, with Finance Minister Dario Durigan confirming that approximately 28 platforms were blocked. The Banco Central do Brasil grounded the ban in a formal resolution prohibiting derivatives contracts whose underlying assets relate to sporting events, political outcomes, entertainment, or any event not representative of an economic or financial benchmark. Researchers in Brazil confirmed that both Polymarket and Kalshi were inaccessible at the network level, meaning enforcement was already active rather than prospective. Polymarket is now blocked in more than 30 jurisdictions globally, a count that grows with each new resolution of this type. Separately, the CFTC announced charges against a U.S. Army service member accused of using classified military intelligence to place approximately $400,000 in bets on Polymarket tied to a raid involving Venezuelan President Nicolas Maduro. The soldier had reportedly failed Kalshi’s know-your-customer procedures before taking the positions to Polymarket instead, a sequence that raises pointed questions about the adequacy of identity verification across platforms that collectively hold dominant market share in U.S. prediction trading. The CFTC described the case as the first enforcement action for insider trading in event contracts, a distinction that confirms the agency now views these markets as serious enough to warrant the same prosecutorial tools applied to conventional financial instruments. That framing cuts both ways: it validates the federal jurisdiction argument while simultaneously handing state regulators evidence that the products carry genuine financial harm potential.
