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House Oversight expands probe into insider trading on prediction market platforms

Market News
29 Sep 2026
CNBC
View Source
Bearish
House Oversight expands probe into insider trading on prediction market platforms

Rep. James Comer, chair of the House Oversight Committee, has broadened an investigation into insider trading on prediction market platforms by requesting documents from Hyperliquid Labs, Crypto.com, and Aristotle Exchange (owner of PredictIt). This follows an earlier probe into Kalshi and Polymarket amid concerns that users exploit nonpublic information to place bets, potentially violating legal obligations. The investigation aims to assess how these platforms verify customer identities and detect suspicious trades, highlighting growing regulatory scrutiny as prediction markets gain popularity. The committee has already received substantial documentation and briefings from Kalshi and Polymarket, with ongoing inquiries into suspicious trading activities linked to real-world events.

The House investigation into prediction market insider trading provides context for Pluang's market snapshot as of Sep 29, 2026 21:15 WIB: Of 150 US stocks priced on Pluang, 75 rose and 73 fell. Among notable movers, Li Auto Inc (LI) dropped 4.48% with a typical hold time of 101 days and a strong sell bias of 85%, contrasting with IQIYI Inc (IQ) which fell 4.33% but saw an even higher sell activity at 98%. NIO Inc (NIO) also declined 4.32%, with 81% of orders to sell and a hold time of 81 days, showing a broadly negative sentiment across these assets.

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