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Chip Stocks Tumble Across the Board as AI Valuation Fears Spread Beyond Samsung

A sharp selloff in semiconductor stocks widened well beyond Samsung Electronics on Tuesday, with Intel, AMD, Micron and other chipmakers all sliding as investors worried that soaring AI spending cannot keep pace with skyrocketing memory-chip prices. The Nasdaq fell 2.2% and the S&P 500 lost 1.5%, with reports that China's DeepSeek is developing its own AI chip adding to the unease.