T-Mobile US, Inc. (TMUS)
NASDAQ: TMUS · Real-Time Price · USD
238.83
-0.62 (-0.26%)
At close: Sep 18, 2025, 4:00 PM EDT
239.15
+0.32 (0.13%)
After-hours: Sep 18, 2025, 5:12 PM EDT
T-Mobile US Market Cap
T-Mobile US has a market cap or net worth of $268.78 billion as of September 18, 2025. Its market cap has increased by 15.92% in one year.
Market Cap
268.78B
Enterprise Value
378.22B
1-Year Change
15.92%
Ranking
Category
Stock Price
$238.83
Market Cap Chart
Since April 19, 2007, T-Mobile US's market cap has increased from $4.31B to $268.78B, an increase of 6,142.80%. That is a compound annual growth rate of 25.15%.
Market Cap History
| Date | Market Cap | % Change |
|---|---|---|
| Sep 17, 2025 | 269.48B | 5.20% |
| Dec 31, 2024 | 256.15B | 38.15% |
| Dec 29, 2023 | 185.42B | 6.45% |
| Dec 30, 2022 | 174.18B | 20.24% |
| Dec 31, 2021 | 144.87B | -13.45% |
| Dec 31, 2020 | 167.37B | 149.46% |
| Dec 31, 2019 | 67.09B | 24.33% |
| Dec 31, 2018 | 53.97B | 2.14% |
| Dec 29, 2017 | 52.84B | 11.50% |
| Dec 30, 2016 | 47.39B | 48.45% |
| Dec 31, 2015 | 31.92B | 46.77% |
| Dec 31, 2014 | 21.75B | -11.27% |
| Dec 31, 2013 | 24.51B | 578.59% |
| Dec 31, 2012 | 3.61B | 14.88% |
| Dec 30, 2011 | 3.14B | -29.75% |
| Dec 31, 2010 | 4.48B | 66.48% |
| Dec 31, 2009 | 2.69B | -48.29% |
| Dec 31, 2008 | 5.20B | -23.05% |
| Dec 31, 2007 | 6.76B | 56.95% |
| Apr 19, 2007 | 4.31B | - |
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Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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