After the opening bell, the Dow dropped 0.9%, or more than 400 points, as the S&P 500 declined 0.5%. The tech-heavy Nasdaq composite moved down 0.6% in morning trading. Please watch the video at Investors.com - Can Nvidia Beat 'Whisper Number' Despite Supply Constraints? Walmart, FUTU Earnings Also In Focus

The U.S. stock market swung through another unsettled day of trading, ahead of a couple of crucial tests for Wall Street.

Major stock indexes ended sharply lower to begin the week, which will see AI darling Nvidia and retail giants report quarterly results, as well as the release of the September jobs report delayed because of the U.

The Dow Jones index rose Tuesday after the passage of the shutdown bill. Nvidia partner CoreWeave plunged on earnings.

Dow fell 613 points. The S&P 500 slid 1.2% for a fourth straight loss. The Nasdaq dropped 1.7%. Tech led the sell-off. Nvidia fell 3% and is down 10% this month. Amazon and Microsoft also sank. Bitcoin hit $89,