The Dow Jones Industrial Average opened down 550.74 points, or 1.04%, at 52,374.41 on Wednesday, July 8. The S&P 500 opened down 45.64 points, or 0.61%, at 7,458.21 on Wednesday, July 8. The Nasdaq Composite opened down 111.97 points, or 0.43%, at 25,706.72 on Wednesday, July 8.