At the closing bell, the Dow Jones Industrial Average was down 4.0 percent at 40,545.93, a loss of more than 1,600 points
The broad-based S&P 500 closed down 4.8 percent at 5,396.52 – its worst trading day since June 2020. And the tech-rich Nasdaq Composite tanked 6.0 percent to 16,550.60, its largest one-day decline since the early days of the COVID-19 pandemic in March 2020.