Overview
- The Commodity Futures Trading Commission reopened the probe on Oct. 27, 2026 to examine whether Polymarket violated its January 2022 settlement that required blocking American users from its offshore exchange.
- Investigators are concentrating on three areas: how the platform determines user location and blocks U.S. access, its advertising aimed at U.S. audiences, and onboarding and consumer-protection practices for its newer regulated U.S. platform.
- Polymarket maintains its controls block the vast majority of unauthorized U.S. traders and says it uses machine learning, blockchain analytics and trade surveillance to detect evasion and misconduct.
- Law-enforcement attention and technical risks are already visible: prosecutors charged a soldier in April with using a VPN and an ‘exit mode’ to place insider bets, and the firm added bitcoin deposits, won ICE investment, and bought a regulated U.S. exchange in 2025.
- The renewed inquiry revives earlier, closed probes and could prompt fresh enforcement actions, new regulatory rules for prediction markets, or limits on Polymarket’s products that would affect users, investors and other platforms offering event-based contracts.