Nasdaq slides 3% as tech stocks weigh; Dow Jones down over 600 points
The S&P 500 was down 94.19 points, or 2.19%, at 4,205.98, and the Nasdaq Composite was down 402.84 points
The S&P 500 was down 94.19 points, or 2.19%, at 4,205.98, and the Nasdaq Composite was down 402.84 points