U.S. stock markets tumbled sharply on Tuesday after President Donald Trump unexpectedly announced plans to resume military strikes against Iran, intensifying a day of losses that had already begun with a cautious open. The S&P 500 closed 0.94% lower, the Nasdaq Composite slumped 1.5%, and the Dow Jones Industrial Average dropped 1.2% as risk-off sentiment swept through markets.
The session started on a weak note, with all three major indices posting opening declines of around half a percent. Technology stocks led the early downturn, but the selloff accelerated dramatically following Trump’s White House statement citing ongoing threats to American interests. Energy and defense shares initially gained but later joined the broader market retreat.
Oil prices spiked on the geopolitical shock before paring gains, while defensive sectors like utilities and consumer staples held up relatively better. The announcement added a significant layer of uncertainty to an already fragile environment, where investors were grappling with inflation concerns, interest rate expectations, and corporate earnings. The tech-heavy Nasdaq bore the brunt of the selling, reflecting heightened sensitivity of growth stocks to geopolitical risk.
Market participants now await further developments, including potential responses from Iran and diplomatic efforts. The immediate reaction underscores how quickly geopolitical events can reshape the investment landscape, prompting a flight from risk assets. For the cryptocurrency market, which often mirrors broader risk sentiment, the escalation could translate into increased volatility and short-term downward pressure.