House Committee Probes 2 Prediction Markets on Insider Trading Risk

U.S. House Oversight Committee Chairman James Comer is launching a probe into prediction markets Kalshi and Polymarket over concerns that government employees could be using insider information to profit from bets on geopolitical events. The investigation, announced Friday, seeks to understand what measures the two platforms have in place to prevent illicit activity and could pave the way for new legislation.

"There's a concern now that members of Congress, members of the president's administration, any type of government employee, can use basic insider knowledge and make huge profits on anything government-related," Rep. Comer, a Kentucky Republican, said on CNBC. "It's the wild west. There are no rules."

The probe follows a series of suspiciously timed wagers on the platforms. A letter from Democratic lawmakers led by Rep. Chris Pappas highlighted a single trader who made nearly $1 million with a 93% success rate on bets related to U.S. and Israeli military actions against Iran. In another instance, 38 accounts netted over $2 million from wagers placed just before U.S. strikes on February 28.

At stake is the future of the burgeoning prediction market industry, which allows users to bet on a vast range of future outcomes. The investigation could lead to significant regulatory burdens, potentially stifling growth and setting a precedent for how U.S. authorities handle these novel platforms. Comer has indicated subpoenas could be issued if the companies fail to cooperate with the information requests.

In letters to Kalshi CEO Tarek Mansour and Polymarket CEO Shayne Coplan, Comer requested records on user identity verification, methods for blocking users from prohibited jurisdictions, and systems for flagging suspicious activity. The letter to Polymarket specifically noted that some questionable trades were made on its offshore site, which U.S. persons are barred from accessing under a 2022 settlement with the Commodity Futures Trading Commission (CFTC).

The investigation was spurred in part by the case of a U.S. Army soldier, Gannon Ken Van Dyke, who faces federal charges for allegedly using classified information to make over $400,000 on Polymarket. His bets were reportedly related to U.S. military action in Venezuela.

While both platforms are under scrutiny, they operate under different regulatory frameworks. New York-based Kalshi is regulated by the CFTC and requires all users to verify their identity. Polymarket, however, has faced previous regulatory action and its use of cryptocurrency infrastructure affords a greater degree of anonymity, a point of concern raised by Comer. The White House has already warned its staff against using nonpublic information to place bets on these platforms, and more than 10 related bills have been introduced in Congress this year.

This article is for informational purposes only and does not constitute investment advice.