The Commodity Futures Trading Commission (CFTC) on April 23, 2026, announced its first-ever enforcement action targeting insider trading in event contracts (prediction markets), filing a civil complaint against a U.S. Army service member for allegedly using classified government information to trade on Polymarket. The case also marks the first time the CFTC has invoked the so-called “Eddie Murphy Rule” to bring charges based on misuse of government information.
Details of the Insider Trading Case
The defendant, Gannon Ken Van Dyke of North Carolina, is an active-duty U.S. Army member. According to the CFTC complaint, Van Dyke used nonpublic details related to “Operation Absolute Resolve” — a classified U.S. military operation involving Nicolás Maduro — to purchase more than 436,000 “Yes” shares on Polymarket in a contract tied to Maduro’s removal by January 31, 2026. The trades generated over $404,000 in profits, the agency said. Separately, the U.S. Department of Justice (DOJ) alleged Van Dyke profited approximately $409,881 from related prediction market trading.
CFTC Chairman Mike Selig wrote on X: “I’ve been crystal clear: anyone who engages in insider trading in any of our markets will face the full force of the law.” The CFTC is seeking restitution, disgorgement, civil penalties, trading bans, and a permanent injunction.
The ‘Eddie Murphy Rule’ and Legal Precedent
The ‘Eddie Murphy Rule’ refers to Section 4c(a)(4) of the Commodity Exchange Act, which prohibits government officials, including service members, from using nonpublic government information in prediction markets and other markets under CFTC jurisdiction. This is the first time the CFTC has used the rule to bring charges based on alleged misuse of government information. CFTC Director of Enforcement David I. Miller warned: “The defendant abused that trust by misappropriating extremely sensitive information regarding U.S. military operations, and by doing so, placed the lives and security of our service members at risk.”
Parallel DOJ Charges and National Security Implications
The DOJ indictment, unsealed in Manhattan federal court, alleges Van Dyke used classified national defense information from his role in Operation Absolute Resolve to place trades on Polymarket before any public disclosure. Federal prosecutors stressed the national security risks, noting the defendant participated in operational planning and violated a duty of confidentiality. The case highlights how prediction markets can intersect with sensitive government information, prompting increased regulatory scrutiny. The CFTC vowed to continue policing prediction markets for any illegal actions, especially those involving government secrets.