The Dow Jones Industrial Average opened 164.05 points higher, or 0.33%, at 49,664.98 on Tuesday, February 17. The S&P 500 opened 4.49 points lower, or 0.07%, at 6,831.68. The Nasdaq Composite opened 83.66 points lower, or 0.37%, at 22,463.01 on Tuesday, February 17.