The Dow Jones Industrial Average closed down 446.51 points, or 0.97%, at 45,574.92 on Friday, March 20. The S&P 500 closed down 99.86 points, or 1.51%, at 6,506.63 on Friday, March 20. The Nasdaq Composite closed down 443.08 points, or 2.01%, at 21,647.61 on Friday, March 20.