https://www.live-feeds.com/feed/stock-market-news-oct-16-2026-dow-falls-s-p-500-and-nasdaq-cement-worst-week-since-june-as-tech-rout-deepensContinuously updated, source-cited coverage. https://www.live-feeds.com/feed/stock-market-news-oct-16-2026-dow-falls-s-p-500-and-nasdaq-cement-worst-week-since-june-as-tech-rout-deepenshttps://www.live-feeds.com/feed/stock-market-news-oct-16-2026-dow-falls-s-p-500-and-nasdaq-cement-worst-week-since-june-as-tech-rout-deepens#u141085Tue, 20 Oct 2026 22:53:14 +0000The Nasdaq Composite and S&P 500 plummeted Friday, finishing their worst week since June as AI-linked stocks continued to sink. While the Dow Jones Industrial Average fell on Friday, it achieved its second consecutive weekly gain. Market anxiety intensified as a selloff in memory chips and concerns over AI debt coincided with oil prices surging to $110 per barrel for the first time since May. Recent volatility has been further influenced by shifting expectations regarding interest rate holds following a speech by Warsh.Why it mattersThe convergence of an AI-driven tech rout and an energy p