US Stocks today: Dow Jones soars 1,125 points, Nasdaq, S&P 3% as Iran war de-escalation seen

Wall Street ended sharply higher on Tuesday, lifted by speculation about a potential de-escalation in the Middle East conflict that has sent oil prices soaring and fueled fears of global inflation in recent weeks. All three major U.S. indexes rallied after the Wall Street Journal reported on Monday that U.S. President Donald ‌Trump told aides he ⁠was willing ⁠to end the military campaign against Iran, even if the Strait of Hormuz remained largely closed. U.S. Defense Secretary Pete Hegseth said the next few days in the Iran war would be decisive and warned Tehran that the conflict would intensify if it did not make a deal.

The Dow Jones Industrial Average rose 1,125.07 points, or 2.49%, to 46,341.21. The S&P 500 gained 185.27 points, or 2.92%, to 6,528.99, while the Nasdaq Composite climbed 795.99 points, or 3.83%, to 21,590.63.

The month-long war has left the S&P 500 and the Dow on track for their deepest quarterly declines since 2022 as investors worry that a wave of higher fuel costs could hurt demand for goods and services, while forcing the U.S. Federal Reserve to raise interest rates to contain ⁠inflation.

“What you’re ‌seeing in capital markets today is speculation around an earlier off-ramp, or a cessation of hostilities,” said Bill Northey, senior investment director at U.S. Bank Wealth Management, in Billings, Montana.

“Details are light, but ⁠the capital markets are looking for any indication that there is an opportunity for a more normal flow of energy through the Strait of Hormuz.”

The U.S. stock market’s most valuable companies made big gains, with Nvidia, Alphabet, Meta Platforms and Amazon all higher.

The PHLX chip index also jumped. CoreWeave rallied after securing an $8.5 billion loan to expand AI infrastructure. Marvell Technology surged after Nvidia invested $2 billion in the firm. Many technology stocks have taken a beating in 2026 due to worries that Microsoft, Alphabet, Amazon and other heavyweights may be taking too long to show results from their massive spending in AI.

Last week, the Dow and the ⁠Nasdaq ended 10% below their record-high closes, confirming they were both in corrections. U.S. job openings fell more than expected in February and hiring dropped to the lowest level in nearly six years, government data showed.

The oil spike stemming from the Iran war has revived inflation worries, and money market traders think the Fed is more likely to raise interest rates by year-end than lower them, according to CME Group’s FedWatch Tool. Unilever agreed to separate its food unit and merge it with McCormick in a cash-and-stock deal, valuing the spice maker at about $44.8 billion. McCormick shares fell. Constellation Energy dropped after forecasting 2026 profit below Wall Street expectations.

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