Why Tech’s DeepSeek Slump Left Rest of Market Historically Unscathed

Tech Selloff Doesn’t Change US Exceptionalism, Says Goldman’s Oppenheimer
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Several measures of stock market health suggest that Monday’s sudden slump was in fact mostly an isolated hit to the world’s biggest technology firms and AI-related shares.

The Nasdaq 100 slid 3% and Nvidia Corp. plunged 17% — shedding almost $600 billion in market value in the biggest wipe-out in history. That came as Chinese startup DeepSeek’s latest model shook the belief that only Big Tech with huge budgets can compete in the artificial intelligence field — questioning the investment case that has favored the biggest players with rich valuations.