The Nasdaq Composite Index opened 164.89 points higher, or 0.71%, at 23,472.51 on Monday, December 22. The S&P 500 Index opened 35.97 points higher, or 0.53%, at 6,870.75 on Monday, December 22. The Dow Jones Industrial Average opened 218.95 points higher, or 0.45%, at 48,353.84 on Monday, December 22.