US stock market crash: Why Nasdaq falls big today — stock market is down as tech stocks tumble again

US stock market crashes today as the Nasdaq falls big today and the mood on Wall Street turns sharply lower with tech stocks tumbling again, and the drop hits fast as investors dump high-valuation names while Treasury yields rise and major economic data stays missing after the long shutdown. The Nasdaq sinks 1.7% in heavy selling. The S&P 500 drops 1.1%. The Dow slips 382 points, or 0.8%, after hitting fresh highs earlier this week. Tech and AI names take the hardest hit. Nvidia falls. Broadcom falls. Alpha ...