Market sell-off gains steam as concerns about Iran war and high AI spending collide

U.S. equity markets sold off sharply Thursday, as fears that Israel and the United States would restart attacks against Iran sent oil prices higher and major tech stocks failed to hold on to recent gains.
The S&P 500 was down 1.3% by 2 p.m. ET, while the tech-heavy Nasdaq had fallen 2.5%. The price of international Brent crude climbed nearly 4%, while U.S. crude gained 2.5%.
Demand for Treasury bonds also increased — bucking the trend of the last several months — as investors sought out the safe-haven assets as riskier ones like tech stocks sold off. That sent the 10-year yield below 5% for the first time since late September.
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