CME CEO Duffy calls sports prediction markets gambling, predicts Supreme Court fight
CME Group CEO Terry Duffy called sports prediction markets gambling during the company's July 22 earnings call and predicted the issue will reach the Supreme Court. The comments come as prediction market platforms experience growth but sports contracts remain contested. The remarks add a major exchange voice to the escalating fight over whether CFTC-registered sports event contracts are legal trading or illegal gambling.
Duffy's stance matters because CME is the world's largest futures exchange; his gambling label gives congressional critics and state attorneys general a powerful industry ally. Kalshi and Polymarket now face a three-front war: states, Congress, and heavyweight exchange opinion. The Supreme Court prediction signals that CME itself may file amicus briefs or support challenges that reach federal appellate courts.
For traders, a CME-backed gambling designation would pressure the CFTC to reverse its June proposal allowing sports contracts. DraftKings and Robinhood, with their own regulated event-contract products, face identical exposure if the gambling frame sticks. The faster Congress or courts move, the less time platforms have to build compliance buffers.