• Prediction market Kalshi flagged former Rep. George Santos to the DOJ and CFTC over bets against his own attendance at Trump’s State of the Union.
  • The incident intensifies regulatory scrutiny of prediction markets for insider trading risks.
  • Kalshi faces broader legal battles with state regulators and ongoing debates over CFTC oversight.

Santos Bet Sparks Insider Trading Alarm

Kalshi, the regulated prediction market platform, reported former U.S. Representative George Santos to the Department of Justice after detecting suspicious trading activity tied to a contract on President Trump’s State of the Union address. According to people familiar with the matter, Santos placed bets against his own attendance at the event—a wager that proved profitable when he ultimately did not attend. The trades were also flagged to the Commodity Futures Trading Commission, as regulators increasingly zero in on insider trading risks within event-based markets.

“This is a clear case where someone with non-public information used it to gain an edge,” said a legal expert familiar with the platform’s compliance systems. Kalshi declined to comment on the specific investigation but confirmed in a statement that it “actively monitors for potential misconduct and cooperates fully with authorities.”

Broader Regulatory Crackdown

The Santos case arrives amid heightened scrutiny of prediction markets, where users trade contracts on real-world outcomes. The CFTC has been wrestling with how to apply anti-fraud rules to these platforms, while state regulators have filed suits alleging Kalshi’s offerings amount to unlicensed gambling. Kalshi has fought back, arguing it operates as a federally regulated derivatives exchange.

“This incident underscores the urgent need for clear insider trading rules in prediction markets,” said a policy analyst tracking the sector. “Without a robust framework, market integrity—and investor confidence—will erode.”

What’s Next for Kalshi

Kalshi’s legal challenges are far from over. The company is still embroiled in lawsuits with state authorities over the legality of its contracts, and a federal court battle over the CFTC’s jurisdiction continues. Meanwhile, trading volumes on the platform have fluctuated amid the uncertainty, though user numbers remain steady, according to industry estimates.

The DOJ’s inquiry into Santos is in its early stages, and no charges have been filed. Kalshi has said it will continue to enhance its surveillance systems. For now, the prediction market industry watches closely as this case could set a precedent for enforcement.

Correction: A previous version of this article misstated the timing of the bet. It was placed before the State of the Union, not after.