Stock market today: Nasdaq futures tank, Dow tumbles 350 points as AI fears rock tech stocks
Contracts on the tech-heavy Nasdaq 100 ( NQ=F) sank 4.3%, while S&P 500 futures ( ES=F) tumbled 2.4%. Dow Jones Industrial Average futures ( YM=F) fell 0.9%, or about 380 points, on the heels of a winning week for the major gauges.