ST. LOUIS, MO – October 30, 2026 (STL.News) The U.S. stock market closed sharply lower Friday as disappointing corporate forecasts, growing concerns about artificial intelligence spending, and heavy selling in semiconductor stocks sent Wall Street’s major indexes into negative territory on the final trading day of October. The Nasdaq Composite fell 2.86%, the S&P 500 declined 1.82%, and the Dow Jones Industrial Average lost 572.25 points. The Russell 2000, which tracks smaller publicly traded companies, also finished lower. The S&P 500 recorded its worst trading session since June, while the Nasdaq suffered its largest one-day percentage decline since June
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