On August 13, 2026, T-Mobile US Inc TMUS shares rose 3.5%, closing at $183.38. This movement comes amidst a challenging performance over the past year, where the stock has declined 25.5%. The shares are currently trading within a 52-week range of $165.66 to $261.56.
- GF Valueâ„¢ verdict: TMUS is currently priced at $183.38, which is 20.1% below its GF Valueâ„¢ estimate of $229.63.
- GF Scoreâ„¢: TMUS has a GF Scoreâ„¢ of 76/100, indicating above-average performance across several key metrics.
- Most notable signal: Insider activity has shown that insiders sold $0.9M worth of shares in the last three months, with no buying reported.
Is TMUS Overvalued or Undervalued?
The current valuation of T-Mobile US Inc, as indicated by the GF Valueâ„¢, suggests that the shares are undervalued, presenting a potential opportunity for investors. The GF Valueâ„¢ is GuruFocus' proprietary estimate of intrinsic value, derived from a combination of historical trading multiples, past business growth, and future performance expectations. With TMUS trading at $183.38, which is 20.1% below the calculated fair value of $229.63, investors may find a margin of safety in this valuation.
However, it is crucial to consider the broader context. The GF Valuation label indicates that TMUS is modestly undervalued, but investors should exercise caution due to the company's recent performance trends. The stock has faced downward pressure, reflected in an 8.8% decline year-to-date and a significant drop of 25.5% over the last year. These factors may suggest that while the current valuation presents an opportunity, it is essential to assess the sustainability of the company’s financial health and growth prospects.

How Does TMUS's Valuation Compare to Its History?
| Metric | Current | Historical |
|---|---|---|
| P/E (TTM) | 19.2x | 25.4x |
| Forward P/E | 16.8x | N/A |
The current P/E (TTM) of 19.2x is significantly below the 5-year median P/E of 25.4x, indicating that the stock is trading at a lower valuation compared to its historical averages. This analysis aligns with the GF Valueâ„¢ verdict, reinforcing the notion that TMUS is undervalued at its current price. The forward P/E of 16.8x further suggests that the market may be pricing in lower growth expectations, which could present a favorable entry point for long-term investors if the company can reverse its current trends.

What Does TMUS's GF Scoreâ„¢ Tell Us?
The GF Scoreâ„¢ is a composite metric that evaluates a company's performance across multiple dimensions, including financial strength, profitability, growth, valuation, and momentum. T-Mobile US Inc has a GF Scoreâ„¢ of 76/100, reflecting its above-average standing in the market.
| Metric | Rating |
|---|---|
| GF Scoreâ„¢ | 76 |
| Financial Strength | 4/10 |
| Profitability | 8/10 |
| Growth | 9/10 |
| Valuation | 8/10 |
| Momentum | 1/10 |
The strongest areas for TMUS are its profitability and growth ranks, scoring 8/10 and 9/10, respectively, indicating a solid capacity to generate earnings and expand its operations. However, the momentum rank of 1/10 suggests significant weakness in recent price performance, aligning with the stock's decline over the past year. This contrast highlights the potential for recovery but also raises concerns about the sustainability of its growth trajectory moving forward.
What Are Gurus and Insiders Doing with TMUS?
Currently, 14 gurus hold positions in T-Mobile US Inc, with 6 increasing their stakes while 10 have trimmed their holdings in recent quarters. This mixed activity reflects a cautious approach from institutional investors, a signal that is critical for evaluating future performance.
Moreover, insider activity has shown that insiders sold $0.9M worth of shares over the past three months without any reported buying. This trend may suggest a lack of confidence from those closest to the company, which could be a red flag for potential investors. The balance of guru sentiment alongside insider selling invites a more in-depth analysis of the company's current standing and future outlook.

What This Means for Investors
Overall, T-Mobile US Inc appears to be undervalued based on the GF Valueâ„¢ assessment, which indicates a 20.1% upside potential from its current price. However, the mixed signals from both insider activity and momentum rank necessitate a careful evaluation of the company's financial health and future growth prospects. The modest undervaluation may present an opportunity, but the current market dynamics warrant caution. For those interested in further details, you can explore the T-Mobile US Inc TMUS stock page for more insights, as well as the GF Valueâ„¢ page.
Frequently Asked Questions
What is TMUS's GF Scoreâ„¢?
TMUS has a GF Scoreâ„¢ of 76/100, indicating above-average performance across various financial metrics, suggesting a relatively strong position in the market.
Is TMUS overvalued or undervalued?
TMUS is currently undervalued, with a GF Valueâ„¢ estimate suggesting a 20.1% upside from its current price of $183.38.
What is TMUS's P/E ratio?
The current P/E (TTM) ratio for TMUS is 19.2x, which is significantly below its 5-year median of 25.4x, suggesting that the stock is undervalued compared to its historical valuation.
This stock alert was generated using automated technology and GuruFocus financial data to provide readers with timely and accurate market reporting. This content was reviewed by GuruFocus editorial team prior to publication. Please send any questions or comments about this story to [email protected].
