Polymarket built a $14 billion US trading business almost entirely on sports bets

Polymarket's US prediction exchange recorded about $13.7 billion in contract-face-value trading in the 30 days through Oct. 26, with sports accounting for 98.2% of that turnover, according to DeFi Rate's data . That concentration leaves its American expansion heavily exposed to the dispute over whether sports event contracts fall under federal derivatives oversight or state gambling laws. The figures coincide with Reuters' Oct. 27 report that the Commodity Futures Trading Commission (CFTC) is again examining compliance with Polymarket's 2022 settlement restricting US access to its offshore platform.