House lawmakers launch insider trading probe into Kalshi and Polymarket
The House Oversight Committee is investigating Kalshi and Polymarket for alleged insider trading activities. Lawmakers are seeking internal documents to understand how these prediction market platforms prevent such practices. Concerns have arisen following suspicious betting patterns linked to significant geopolitical events.
- ▪The investigation was initiated by Rep. James Comer, who requested information on identity verification and insider trading investigations.
- ▪Both Kalshi and Polymarket allow users to bet on future events, but have faced scrutiny due to suspiciously timed bets.
- ▪A recent report highlighted that nine Polymarket accounts made $2.4 million by predicting key moments in the Iran conflict.
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MoneyWatch House lawmakers launch insider trading probe into Kalshi and Polymarket .chip { background-image: url('/fly/bundles/cbsnewscore/images/chip-bgd/chip-bgd-moneywatch.jpg'); } By Mary Cunningham Mary Cunningham Reporter, MoneyWatch Mary Cunningham is a reporter for CBS MoneyWatch. She previously worked at "60 Minutes," CBSNews.com and CBS News 24/7 as part of the CBS News Associate Program. Read Full Bio Mary Cunningham May 22, 2026 / 2:21 PM EDT / CBS News Add CBS News on Google The House Oversight Committee said on Friday that it is opening an investigation into Kalshi and Polymaket over alleged incidents of insider trading by users of the prediction markets. Rep.
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