Stocks post their worst week of 2026 amid AI disruption

Stocks post their worst week of 2026 amid AI disruption fears

Major U.S. indexes fell sharply: Nasdaq -2%+ (fifth straight weekly loss), S&P 500 ~-1.4%, Dow ~-1.2–1.3%. Tech led sell-off on AI disruption worries; Cisco plunged 12% on weak guidance. Defensives like utilities held better. Softer inflation offered mild support Friday.

AI jitters shift sentiment from growth/tech, marking biggest weekly losses since late 2025.