Polymarket has returned to the US prediction market space, but federal questions have followed quickly. The Commodity Futures Trading Commission is conducting an “extensive investigation” into Polymarket, according to the Wall Street Journal.
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The exact focus of the CFTC investigation remains unclear. Sources told the Wall Street Journal that officials have not publicly defined the full scope.
However, the timing points to one clear pressure point. WSJ previously reported that Polymarket fabricated winnings for content creators who had not risked real money. After that report, two senators asked CFTC chairman Michael Selig to examine the platform.
Polymarket said it had already started an internal review.
“We are conducting a comprehensive audit of active promotional content to ensure it complies with our standards, as well as applicable regulatory and legal disclosure requirements,” a Polymarket spokesperson told CNBC in a statement.
Several publications reported that both CFTC and Polymarket spokespeople declined to add further comment.
Polymarket already knows how serious CFTC action can get. In January 2022, the platform agreed to a settlement after regulators found that it had operated an unregistered derivatives trading platform. US access then ended.
The company came back through a different route. In September 2025, Polymarket acquired QCX, a CFTC licensed derivatives exchange and clearinghouse. Polymarket US relaunched in December 2025 with limited access before its full May launch.
That timeline matters for the wider prediction market industry. The CFTC has generally backed federally regulated event contract platforms, and it has challenged state officials who tried to block or tax those products. Kentucky became the latest flashpoint after officials approved an excise tax on transactions and a ban on sports event contracts.
A confirmed Polymarket probe would therefore create an important first test under Michael Selig leadership. It would also draw a line between federal support for regulated prediction markets and federal concern over promotional practices, creator content, insider trading risks, and sports event contract offerings.