T-Mobile (TMUS) Stock: What to Know Before the Market Opens on Dec. 26, 2025
T-Mobile US, Inc. (NASDAQ: TMUS) heads into the Friday, Dec. 26, 2025 session coming off a shortened holiday week—one that can sometimes amplify price swings because trading volumes are often lighter and headlines can move fast. Where the stock left off: T-Mobile shares last traded at $199.02 at the Dec. 24 close (Christmas Eve), up about 0.7% on the day.Market schedule context: U.S. markets were closed for Christmas Day (Dec. 25), with Christmas Eve typically featuring an early close—so Dec. 26 is the first full session after the holiday pause. New York Stock Exchange Below is what investors and traders