Trump Iran decision lifts US stocks $350B; Bitcoin falls

Former President Donald Trump’s announcement on Iran coincided with a sharp rise in U.S. equities and a further decline in Bitcoin. U.S. trading saw aggregate market capitalization of listed U.S. companies increase by roughly $350 billion from levels immediately before the announcement.

The gains were recorded on the New York Stock Exchange and Nasdaq. The Dow Jones Industrial Average, S&P 500 and Nasdaq Composite all posted advances during U.S. trading hours as investors adjusted positions after the public release of the policy decision. Trading volume on major U.S. exchanges rose compared with the periods immediately before the announcement.

Bitcoin, the largest cryptocurrency by market value, traded lower on major crypto platforms and extended a recent downtrend. Crypto exchanges reported higher intraday volatility and increased selling pressure as some traders closed or reduced positions. The decline followed earlier losses in digital assets over recent sessions.

The timing of the moves aligned with the public announcement. Equity gains were concentrated in the hours after the decision during U.S. trading, while the cryptocurrency decline unfolded across global crypto markets that operate continuously.

At the market microstructure level, order books on U.S. exchanges showed rapid shifts as buy orders pushed prices higher for many listed companies. Crypto order books showed heavier sell-side activity and wider bid-ask spreads for Bitcoin during the same period.

Previous U.S. foreign-policy and political announcements have produced rapid market reactions. Traders and institutional investors are awaiting further statements and policy details to determine whether the equity gains and crypto losses persist.