The Dow Jones Industrial Average closed down 351.27 points, or 0.68%, at 51,512.42 on Wednesday, September 23; the S&P 500 closed down 58.25 points, or 0.75%, at 7,706.39; and the Nasdaq Composite closed down 308.24 points, or 1.13%, at 26,936.04 on Wednesday, September 23.