Columbia Law School Blue Sky Blog
Sidley Discusses the First Prediction Market Insider Trading Case Involving Polymarket, the CFTC, and SDNY
May 21, 2026
This Columbia Law School Blue Sky Blog article analyzes the first insider trading case involving prediction markets following parallel criminal and civil enforcement actions brought by the U.S. Attorney’s Office for the Southern District of New York and the Commodity Futures Trading Commission. Focusing on alleged trading on Polymarket using classified government information related to a U.S. military operation, the piece examines how prosecutors and regulators are applying insider trading, commodities fraud and wire fraud theories to event contracts and prediction market platforms. The article also explores legal issues involving the Commodity Exchange Act, the CFTC’s jurisdiction over event contracts and the treatment of confidential government information under federal fraud statutes. Readers will gain insight into emerging enforcement risks, prediction market compliance considerations and evolving legal standards governing trading based on material nonpublic information.
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