US Governance — 2026-04-11

White House Warns Staff Against Prediction Market Betting After Suspicious Iran Ceasefire Trades

The White House Management Office emailed staff warning against using nonpublic information to bet on prediction markets, following suspicious trading patterns around the Iran ceasefire. AP's analysis of Polymarket blockchain data showed at least 50 new accounts placed substantial yes bets on an April 7 ceasefire before Trump announced it, netting hundreds of thousands in profits. The platform previously faced criticism when users appeared to profit from advance knowledge of military action in Iran and Venezuela. The pattern points to leaks of national security decision-making into financial markets.

Analysis
AP's blockchain analysis showing 50 accounts making well-timed ceasefire bets before the announcement is the strongest public evidence of insider trading linked to national security decisions. This goes beyond ethics guidance to potential criminal liability: trading on material nonpublic information about military operations would meet the elements of securities fraud regardless of the platform.
2 sources
  1. White House staff received email warning them not to place bets on prediction markets, officials say - CBS News
  2. White House staff was warned against betting on Iran war - UPI

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