U.S. stocks opened slightly lower on Monday as investors weighed rising Middle East tensions against recent earnings optimism. Reuters reported small losses across the Dow, S&P 500 and Nasdaq, while official U.S. and market coverage pointed to concern around the Strait of Hormuz.

U.S. stocks opened slightly lower on Monday as investors turned cautious over rising US-Iran tensions and the risk picture around the Strait of Hormuz.

Reuters reported that the Dow, S&P 500 and Nasdaq all slipped at the opening bell, with the market reaction reflecting anxiety over the Middle East conflict after a period of earnings-driven optimism.

AP and MarketWatch also pointed to concern around the Strait of Hormuz in their market coverage. U.S. Central Command said on May 3 that American forces would begin supporting Project Freedom in the waterway on May 4 in an effort to restore freedom of navigation for commercial shipping.

AP and MarketWatch said U.S. officials rejected Iranian media claims about an attack on a U.S. vessel, underscoring how quickly the situation can feed into risk sentiment.

The opening move was modest, but the next question for traders is whether the early weakness broadens into a larger selloff as the session develops and whether fresh official statements shift the tone again.

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Initial automated publication.