A U.S. soldier won $400,000 on a Maduro-raid bet. Investigators say it wasn't a guess.

A serving member of the U.S. Army has been charged in federal court with using classified intelligence to win roughly $400,000 on Polymarket, the prediction-market platform, betting that Venezuelan President Nicolás Maduro would be removed in a U.S. raid.

The raid happened. So did the payout.

Court filings unsealed Wednesday in the Eastern District of Virginia describe a service member assigned to a planning unit who, prosecutors say, opened a Polymarket account in February under a relative’s name and began accumulating contracts on a single market: a binary contract resolving “Yes” if Maduro left office before May 1.

The audit started with the size of the position

Polymarket’s compliance team is required to report unusual concentrated activity to U.S. financial regulators. According to the filing, the soldier’s position was nearly forty times the average individual stake in that market, and the account had no other meaningful trading history. The platform flagged the activity in mid-March; the operation against Maduro was carried out in early April.

The soldier has not been named in the unsealed documents. Defense counsel did not return a request for comment Wednesday afternoon.

A Department of Defense spokesperson said only that “the matter is the subject of an ongoing federal criminal investigation and an internal Inspector General review.”

Why this is a real test

The legal exposure is significant — federal statutes on misuse of classified information carry decade-plus sentences — but the broader question lawyers and policy analysts are asking is structural. Prediction markets like Polymarket have grown fast. They have also grown into the kind of asset class where insider information has both an obvious price and an obvious counterparty.

“This is the case that was always going to come,” said Lara Mendelson, a federal-prosecutor turned compliance consultant who advises trading platforms. “What’s interesting is that the trade itself is what blew his cover.”

The hearing on detention is scheduled for Friday.