Wall Street closes sharply lower as AI cash burn fears spark tech selloff Reuters Stock market today: Nasdaq, Dow, S&P 500 clobbered as October closes with brutal sell-off Yahoo Finance Tech stocks wipe out $1 trillion in value as concerns deepen about the AI boom NBC News Nasdaq sheds more than 700 points as jittery investors pull back from tech stocks CBS News Nasdaq 100 Hits Third Correction of 2026 on Unwinding Tech Stock Bets Bloomberg.com
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