US Stock Market Week Ahead: Santa Rally Window, Q3 GDP Catch‑Up Data, and Fed Rate Bets Put Wall Street on Watch (Dec. 22–26, 2025)
Wall Street heads into Christmas week with a familiar year-end setup—strong full‑year gains, a choppy December, and a market that can swing sharply when trading desks are half-staffed. Stocks finished the last full trading week of 2025 with a late rebound powered by a renewed bid for AI-linked names. On Friday, Dec. 19, the S&P 500 rose 0.88% to 6,834.50, the Nasdaq Composite gained 1.31% to 23,307.62, and the Dow added 0.38% to 48,134.89. Reuters+1 The bigger story: investors are about to get a burst of long-delayed U.S. economic data—starting with a first look at third‑quarter GDP—at the same time the