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US stocks today: Dow crashes 444 pts, Nasdaq 2%, S&P over 1% as Iran war hurts US stock markets most in 4 weeks

By Economic Times Markets · 2026-03-20
US stocks today: Dow crashes 444 pts, Nasdaq 2%, S&P over 1% as Iran war hurts US stock markets most in 4 weeks
Why it matters: Geopolitical tensions are directly impacting investor confidence, signaling a prolonged period of market volatility and inflation concerns.
US stock markets experienced their worst four-week losses, with the Dow, S&P 500, and Nasdaq all plummeting, as the ongoing Iran war fuels investor fears of prolonged geopolitical instability and rising inflation. Experts like Jake Dollarhide and Padhraic Garvey agree that the conflict's extended duration is driving a classic environment of higher rates and selling pressure, impacting even the 'Magnificent Seven' tech giants.

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