{平台标识} {固定描述} U.S. stocks closed mostly lower on Monday, with the Nasdaq Composite leading declines as shares of major AI infrastructure companies tumbled in a broad rout triggered by the emergence of China's DeepSeek. Nvidia plunged approximately 16%, highlighting market concerns over potential disruptions to the AI supply chain.
U.S. Stocks Slide as DeepSeek Sparks Widespread AI Sell-Off - {财报副标题}
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