Stock Market News, Oct. 30, 2026: Tech Selloff Pushes Nasdaq to Its Worst Month in Over a Year WSJ 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 AI Dip-Buyers Gored as Selling Spasm Caps Third Week of Losses Bloomberg
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