T-Mobile US (TMUS) Stock Hits Fresh 52-Week Low After the Bell on December 9, 2025 – What Investors Need to Know Before the Market Opens on December 10
T-Mobile US, Inc. (NASDAQ: TMUS) just wrapped up a heavy trading day on December 9, 2025, sliding to a new 52-week low before stabilizing slightly in after-hours trading. The move came as investors digested a lower price target from Argus Research, a busy schedule of corporate updates, and ongoing sector pressure in telecoms. MarketWatch+2GuruFocus+2 If you’re watching TMUS into the December 10, 2025 open, here’s the full picture: what happened after the bell, why the stock sold off, and what the latest forecasts and analyses suggest for the next leg. T-Mobile US stock after hours on December 9, 2025 By