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AI Fears Weigh on Nasdaq as US Stocks Trade Lower at Midday

U.S. stocks are trading lower at midday Feb. 17, 2026, as artificial intelligence (AI) jitters weigh on tech giants, pulling down the Nasdaq and S&P 500 while the Dow shows relative resilience. S&P 500 Tests Support as AI Volatility Pressures Wall Street U.S. equity markets are trading with a defensive tone on Tuesday, extending last […] Also read: Les dangers du “Shadow AI” : voici pourquoi vous devriez réfléchir à deux fois avant d’utiliser une IA au travail