T-Mobile US, Inc. (TMUS)
T-Mobile US Market Cap: 205.36B for Jan. 21, 2026
Market Cap Chart
Historical Data
Market Capitalization Definition
Market Capitalization measures the total value of a company based on their stock price multiplied by the shares outstanding. This metric is important because it gives you an idea of the size of a company, and how the size has changed over time. When studying companies from a relative basis, it would make sense to compare companies that have a similar market capitalization because factors like market share, economies of scale, and business models would also be similar.
Market Cap Range, Past 5 Years
Market Cap Benchmarks
| Comcast Corp. | 105.27B |
| Netflix, Inc. | 362.09B |
| AT&T, Inc. | 166.60B |
| Meta Platforms, Inc. | 1.545T |
| Alphabet, Inc. | 3.963T |
Market Cap Related Metrics
| PE Ratio | 17.65 |
| PS Ratio | 2.441 |
| PEG Ratio | 0.954 |
| Price to Book Value | 3.396 |
| Price to Free Cash Flow | 15.18 |
| Price | 183.60 |
| Earnings Yield | 5.66% |
| PEGY Ratio | 0.8612 |
| Operating PE Ratio | 10.78 |
| Normalized PE Ratio | 17.11 |