U.S. stock markets are experiencing a dynamic Tuesday, January 13, 2026, as investors digest crucial inflation data, kick off the fourth-quarter earnings season, and contend with persistent geopolitical concerns. While major indexes closed at record highs on Monday, premarket trading suggested a more cautious start, with futures initially slipping before finding some stability as the Consumer Price Index (CPI) report largely met expectations.Premarket Activity and Futures MovementsEarly Tuesday, U.S. stock ...