White House Warns Staff Against Prediction Market Bets Following $600,000 Insider Trading Wave
AH
Adrian Holloway
stablecoin US legislation · Apr 10, 2026
Source: The Digital Ledger Data Terminal
Three accounts on Polymarket and Kalshi pocketed more than $600,000 by correctly calling the timing of an Iranian ceasefire. This activity occurred alongside a wave of unusual activity in futures markets, where more than $760 million worth of oil futures contracts changed hands in under two minutes, 15 minutes before President Donald Trump announced a pause on strikes against Iran via Truth Social.
On March 24, the White House Management Office sent a staff-wide email cautioning employees against using their positions to place well-timed bets on prediction markets. The warning followed the suspicious trades tied to the Iran conflict.
Both Polymarket and Kalshi announced tighter insider trading rules on the same day as the White House warning, barring users from acting on stolen confidential information or betting on outcomes they can influence. In response to the following events, Sen. Richard Blumenthal of Connecticut and Sen. Andy Kim of New Jersey introduced a bill that would ban prediction market bets related to war or military action.
stablecoin US legislationSEC enforcement action
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