A broad selloff sent all three major U.S. stock indexes more than 1% lower by the closing bell, as risk appetite was dampened by a combination of persistent fears over potential disruption due to emergent artificial intelligence technology and Trump’s erratic statements on trade policy, which fueled much of the market volatility during the first year of the president’s second term.
US stocks today: Dow posts closing record high, S&P 500, Nasdaq muted as AI rally pauses
US stocks ended mixed as the Dow hit a record closing high driven by healthcare and consumer gains, while tech and chip stocks lagged. Banking
May 27, 2026