SiaPredict DailyAugust 22, 2026
Top line
Polymarket disclosed it referred dozens of suspected military-insider-trading accounts to the Justice Department after a watchdog group flagged roughly 150 wallets with a 97 percent win rate on war-related contracts, a sign that surveillance and referral obligations are becoming a live compliance issue rather than a hypothetical one. Kalshi began enforcing Washington's court-ordered geofence ahead of its deadline, blocking state residents from sports, elections, and several other contract categories while a broader multi-source system remains due September 2.
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- 1Industry
Polymarket refers dozens of suspected military-insider-trading accounts to the Justice Department
Polymarket confirmed to CNN that it referred dozens of accounts showing signs of possible military insider trading to the Department of Justice, after the Anti-Corruption Data Collective identified roughly 152 wallets that generated about $8 million in profit on war-related contracts, including markets tied to the Iran conflict, with a win rate around 97 percent. The referrals reportedly predated the watchdog's report, and Polymarket said it continues investing in surveillance capabilities, including hiring a former FBI official, while cautioning that suspicious trading patterns alone do not prove wrongdoing. The DOJ has not commented and has not announced any resulting enforcement action.
CNN - 2RegulatoryCatch-up
Kalshi begins blocking Washington users from sports, election, and other event contracts under court order
Kalshi started geofencing Washington residents out of sports, elections, politics, entertainment, culture, technology and science, and mentions contracts by August 20, a day after the IP-and-residency geofence deadline set by King County Superior Court Judge John McHale's final injunction order. Contracts tied to commodities, climate, economics, and finance remain available to Washington users, and Kalshi still must implement a more robust multi-source geofencing system by September 2 or face potential daily fines. The rollout is the first concrete operational compliance step since the court finalized its injunction terms on August 13.
SportsBettingDime - 3IndustryCatch-up
PredictIt executive says prediction-market jurisdiction fight could reach the Supreme Court by mid-2027
Flip Pidot, PredictIt's chief strategy officer, said the escalating conflict between the CFTC and state attorneys general over event-contract jurisdiction has the hallmarks of a case the Supreme Court would take up, predicting a circuit split could emerge as soon as November 2026 and a decision by June 2027 if the Court accepts review. He pointed to pending Kalshi appeals across multiple circuits as the likely source of that split, since several district courts have already ruled for state gambling regulators. The comments reflect a growing practitioner view that the state-versus-federal preemption question is headed for definitive resolution rather than a prolonged stalemate.
Fortune