AI stocks resume sell-off and drag Wall Street lower from record highs

Another sell-off for high-flying artificial-intelligence stocks is dragging Wall Street sharply lower on Tuesday. The S&P 500 dropped 1.7% after careening between an early gain of 1% and a loss of 2.3%, sinking further from its all-time high set a week ago. The Nasdaq composite was 2.9% lower, and the Dow Jones Industrial Average was down 408 points, or 0.8%, as of 1 p.m. Eastern time. Indexes swung lower as companies selling computer chips, memory and other bu...