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More swings for AI stocks drag Wall Street back on the roller coaster

NEW YORK — More sudden reversals for high-flying artificial-intelligence stocks sent Wall Street reeling on Tuesday. The S&P 500 fell 0.3% after careening between an early gain of 1% and a midday loss of 2.3%, pulling further from its all-time high set a week ago. The Dow Jones Industrial Average was up 106 points, or 0.2%, with a little less than an hour remaining in trading, and the Nasdaq composite was 1% lower. Indexes swung lower after companies selling computer chips, memory and other building blocks of the AI boom broke from early gains to losses. Micron Technology went from ...