Home Markets S&P 500, Nasdaq end sharply lower as revived AI doubts ignite tech selloff S&P 500, Nasdaq end sharply lower as revived AI doubts ignite tech selloff Andrew M Oct 23, 2026 comments off Tweet on Twitter Share on Facebook Google+ Pinterest Original source: https://www.investing.com/news/stock-market-news/nasdaq-futures-drop-over-1-as-ai-worries-resurface-oil-climbs-4965180 artificial intelligence Market Updates oil www.investing.com/news/stock-market-news/nasdaq-futures-drop-over-1-as-ai-worries-resurface-oil-climbs-4965180