{固定描述} U.S. equities ended mostly lower on Monday, with the Nasdaq Composite leading declines as a broad selloff in artificial intelligence infrastructure stocks intensified. Shares of Nvidia tumbled 16%, and several other AI hardware makers suffered double-digit percentage losses amid renewed concerns over Chinese AI startup DeepSeek's rapid progress.
U.S. Stocks Slide as AI Rout Deepens, Nvidia Plunges 16% on DeepSeek Shock - {财报副标题}
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