S&P 500 Rises on Dec. 22, 2025 as AI Stocks Rebound — Polymarket Bets and Elliott Wave Signals Converge Ahead of the Santa Claus Rally
U.S. stocks started the holiday-shortened week on a firmer footing Monday, December 22, with the S&P 500 finishing higher as investors leaned back into technology and the AI trade while bracing for thin year-end liquidity and a packed slate of