SiaPredict DailyAugust 24, 2026
Top line
Polymarket referred dozens of accounts flagged for possible military insider trading to the Justice Department, following a watchdog report identifying roughly 152 wallets that earned about $8 million on war-related contracts at a 97 percent win rate. Kalshi, meanwhile, began geofencing Washington residents out of sports, election, and several other contract categories on August 20 under a King County court injunction, and must deploy a more robust multi-source geofence by September 2 or risk daily fines. It has challenged the state's enforcement as inconsistent after Washington declined to apply the same law to Crypto.com, even as Kalshi remains blocked in Michigan and Nevada with litigation pending in nine more states. Against that backdrop, PredictIt's Flip Pidot predicts a circuit split by November 2026 and a possible Supreme Court ruling by June 2027, while a new advocacy group, the Sports Traders Union, is pressing exchanges for a higher minimum trading age, loss-data disclosure, and a code of conduct.
Today's top 5
- 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.
CNNSia's Take
This action shows that prediction markets are taking proactive actions to reduce corruption and collusion risks associated with specific spot contracts related to live-news events. Control placement and effective governance and KYC protocols will further enhance the standing of licensed prediction markets amongst both established investors, regulators and ultimately the court system.
- 2Industry
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.
SportsBettingDimeSia's Take
This action by Kalshi shows that, while state/local and federal regulators battle over who has jurisdictional standing to regulate prediction markets, licensed prediction markets are already taking steps to adhere to regulations implemented by state and local jurisdictions pending the outcome of the jurisdictional battle between state/local and federal regulators. Effective controls and compliance policies will be necessary to implement geofencing and geoblocking actions. Implementing such controls now will put existing licensed prediction markets firms ahead of the curve pending jurisdictional control of licensed contract market regulatory standing.
- 3Industry
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.
FortuneSia's Take
Prediction market insiders, like market watchers, all believe that the fight over prediction market regulatory oversight will ultimately be decided by the United States Supreme Court sooner rather than later. Forward thinking licensed prediction market firms will have compliance contingency plans in place for divergent outcomes when this decision ultimately is handed down.
- 4Industry
Kalshi challenges Washington's inconsistent enforcement after state lets Crypto.com keep offering the same contracts
Kalshi filed a motion arguing Washington's enforcement is inconsistent, noting that six days after the state's court-ordered ban forced Kalshi to geofence sports, election, and other contracts, the state declined to enforce the same law against Crypto.com while its appeal proceeds, leaving the same contract categories freely available to Washington residents through a competitor. The dispute sits within a broader map in which Kalshi remains blocked outright in Washington, Michigan, and Nevada, with active litigation still unresolved in Massachusetts, Minnesota, Ohio, Maryland, Utah, Arizona, New York, and Connecticut. CFTC Chairman Michael Selig's agency continues drafting rule proposals meant to formally govern event contracts nationally, but has not resolved the underlying state-versus-federal jurisdiction question.
CoinDeskSia's Take
Inconsistent application of oversight practices by state and local regulators will ultimately weaken their standing when presenting their argument for effective oversight when battling federal regulators in court. Existing licensed prediction market firms will certainly use every opportunity at their disposal to highlight such discrepancies in the coming months.
- 5IndustryCatch-up
Kalshi's Catalist Sports streaming and data deal is pulled hours after announcement, echoing last year's xAI retraction
Kalshi and Catalist Sports announced a multi-year exclusive US partnership on the morning of August 18 covering live streams and official low-latency data for more than 65,000 tennis matches a year plus international soccer, basketball, and hockey content, but the announcement was pulled from Catalist's site by around 11 a.m. the same day and neither company has offered a public explanation. A Kalshi spokesperson told Bloomberg that details of the announcement "had not been mutually confirmed." It is the second time in roughly a year a Kalshi partnership rollout has been rescinded shortly after publication, following a similarly walked-back 2025 data-sharing announcement with Elon Musk's xAI, a recurring pattern in Kalshi's external-announcement sign-off process that is separate from any regulatory or compliance issue.
Legal Sports Report