T-Mobile US remains a Buy with strong fundamentals despite recent stock underperformance.

T-Mobile US continues to be a Buy as its core business fundamentals have strengthened, even though the stock price has recently underperformed and its earnings multiple has compressed. The company shows superior revenue growth and margins compared to its sector, trading at a forward PEG ratio of 0.94 versus the sector median of 1.17. While high leverage and interest expenses pose valuation risks, ongoing debt reduction and share buybacks support positive future prospects. Analysts expect T-Mobile to maintain above-market margins and achieve 19% annual bottom-line growth from fiscal year 2027 onward, indicating potential for future stock price appreciation if these trends continue.