Holiday-Shortened Session Sees Futures Flat After S&P 500 Hits Record High; AI Momentum Continues

U.S. stock markets are poised for a quiet, holiday-shortened trading session today, Wednesday, December 24, 2025, as investors prepare for the Christmas holiday. Major indexes closed higher on Tuesday, extending a four-day winning streak, with the S&P 500 reaching another all-time closing high. However, premarket activity suggests a muted start, with futures largely flat amidst anticipated thin trading volumes.Premarket Trading Activity and Futures MovementsAs Wall Street gears up for an early 1:00 p.m. ET ...