US House lawmakers are investigating Kalshi and Polymarket, two prediction market platforms, over concerns of insider trading. Suspicious trades were noted around events concerning US military actions.

US House lawmakers have initiated an investigation into two prominent prediction market platforms, Kalshi and Polymarket. Representative James Comer has requested information from the CEOs of these companies regarding their internal controls against insider trading. This probe follows the observation of unusually timed trades that occurred shortly before significant US military actions. The lawmakers aim to understand how these platforms handle potential misuse of non-public information to prevent unfair advantages and maintain market integrity.