The Dow Jones Industrial Average closed down 346.90 points, or 0.67%, at 51,481.72 on Monday, September 28. The S&P 500 closed down 59.48 points, or 0.77%, at 7,683.93 on Monday, September 28. The Nasdaq Composite closed down 248.34 points, or 0.92%, at 26,820.38 on Monday, September 28.