Universe›Communication Services›Wireless Telecommunication Services›Wireless Telecommunication Services›T-Mobile US
Observatory · observe first
T-Mobile US
TMUS · United States · Wireless Telecommunication Services · matched S&P 500 member. Follow its market-weight contribution.
Historical time machine
Historical observation
20182026
Universe weight
0.337%
12M weight contribution
-0.386 pp
3M weight contribution
-0.108 pp
12M price return
-19.9%
Share of matched S&P 500 members
Monthly observations through Mar 2026
Company price index
A separate dimension from market allocation
Historical observations
Most recent 24 observations at or before the selected month
| Month | Market cap | Universe weight | 12M weight change | 12M return | Above 6M weight average |
|---|---|---|---|---|---|
| Mar 2026 | $231.4bn | 0.337% | -0.386 pp | -19.9% | No |
| Feb 2026 | $239.2bn | 0.328% | -0.360 pp | -18.1% | No |
| Jan 2026 | $220.6bn | 0.422% | -0.169 pp | -14.0% | No |
| Dec 2025 | $227.1bn | 0.445% | -0.136 pp | -6.6% | No |
| Nov 2025 | $233.8bn | 0.459% | -0.173 pp | -14.0% | No |
| Oct 2025 | $234.9bn | 0.460% | -0.148 pp | -4.5% | No |
| Sep 2025 | $269.4bn | 0.539% | -0.021 pp | +17.7% | No |
| Aug 2025 | $283.6bn | 0.588% | +0.028 pp | +28.6% | No |
| Jul 2025 | $268.3bn | 0.566% | +0.185 pp | +32.6% | No |
| Jun 2025 | $270.5bn | 0.583% | +0.196 pp | +37.1% | No |
| May 2025 | $275.0bn | 0.623% | +0.231 pp | +40.4% | No |
| Apr 2025 | $280.4bn | 0.673% | +0.116 pp | +52.5% | Yes |
| Mar 2025 | $304.5bn | 0.723% | +0.186 pp | +65.7% | Yes |
| Feb 2025 | $307.9bn | 0.689% | +0.133 pp | +67.5% | Yes |
| Jan 2025 | $266.0bn | 0.591% | +0.037 pp | +46.6% | Yes |
| Dec 2024 | $256.2bn | 0.581% | +0.028 pp | +39.7% | Yes |
| Nov 2024 | $286.6bn | 0.632% | +0.090 pp | +66.6% | Yes |
| Oct 2024 | $259.0bn | 0.609% | +0.043 pp | +57.5% | Yes |
| Sep 2024 | $240.8bn | 0.561% | +0.010 pp | +49.6% | Yes |
| Aug 2024 | $231.9bn | 0.560% | +0.049 pp | +48.1% | Yes |
| Jul 2024 | $212.7bn | 0.381% | +0.028 pp | +33.9% | No |
| Jun 2024 | $206.5bn | 0.387% | +0.002 pp | +28.4% | No |
| May 2024 | $205.0bn | 0.392% | -0.015 pp | +29.0% | No |
| Apr 2024 | $192.4bn | 0.557% | -0.026 pp | +15.0% | Yes |
Its weight is estimated market cap divided by the total estimated market cap of matched S&P 500 members for the month. This is not an official float-adjusted S&P index weight.