T vs. TMUS
T (AT&T Inc.) and TMUS (T-Mobile US, Inc.) are both stocks. Both operate in the Telecom Services industry within the Communication Services sector. Over the past 10 years, T returned 2.99%/yr vs 14.87%/yr for TMUS. Their 0.36 correlation means their historical movements had little consistent relationship.
Performance
T vs. TMUS - Performance Comparison
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Returns By Period
In the year-to-date period, T achieves a 1.84% return, which is significantly higher than TMUS's -11.83% return. Over the past 10 years, T has underperformed TMUS with an annualized return of 2.99%, while TMUS has yielded a comparatively higher 14.87% annualized return.
T
- 1D
- 1.20%
- 1M
- 8.92%
- 6M
- 6.63%
- YTD
- 1.84%
- 1Y
- -8.68%
- 3Y*
- 25.55%
- 5Y*
- 9.02%
- 10Y*
- 2.99%
- ALL TIME*
- 9.58%
TMUS
- 1D
- -1.60%
- 1M
- -2.99%
- 6M
- -4.75%
- YTD
- -11.83%
- 1Y
- -25.87%
- 3Y*
- 9.57%
- 5Y*
- 5.01%
- 10Y*
- 14.87%
- ALL TIME*
- 17.77%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $2.18B | $2.03B | $1.39B | |
| $861.51M | $947.87M | $987.32M |
T vs. TMUS - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
T AT&T Inc. | 1.84% | 13.97% | 44.08% | -2.74% | 5.76% | -8.09% | -21.37% | 45.55% | -22.25% | -4.01% |
TMUS T-Mobile US, Inc. | -11.83% | -6.58% | 39.70% | 15.02% | 20.71% | -13.99% | 71.96% | 23.28% | 0.16% | 10.43% |
Correlation
The correlation between T and TMUS is 0.57, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.57 |
Correlation (3Y) Balances recent behavior with more history. | 0.47 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.44 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.38 |
Correlation (All Time) Calculated using the full available price history since Apr 19, 2007 | 0.36 |
Over the past year, T and TMUS have become more correlated (0.57) than their long-term average of 0.36, meaning their price movements have been converging.
Fundamentals
T:
$167.27B
TMUS:
$190.09B
T:
$3.03
TMUS:
$9.54
T:
8.06
TMUS:
18.58
T:
0.33
TMUS:
0.28
T:
1.36
TMUS:
2.13
T:
1.34
TMUS:
3.41
T:
$127.24B
TMUS:
$92.19B
T:
$112.60B
TMUS:
$50.20B
T:
$49.53B
TMUS:
$28.32B
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Return for Risk
T vs. TMUS — Risk / Return Rank
T
TMUS
T vs. TMUS - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for AT&T Inc. (T) and T-Mobile US, Inc. (TMUS). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| T | TMUS | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.56 | ||
| Sortino ratioReturn per unit of downside risk | +0.85 | ||
| Omega ratioGain probability vs. loss probability | 0.96 | 0.85 | +0.11 |
| Calmar ratioReturn relative to maximum drawdown | -0.30 | -0.76 | +0.46 |
| Martin ratioReturn relative to average drawdown | -0.66 | -1.28 | +0.62 |
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Drawdowns
T vs. TMUS - Drawdown Comparison
The maximum T drawdown since its inception was -64.15%, smaller than the maximum TMUS drawdown of -86.29%. Use the drawdown chart below to compare losses from any high point for T and TMUS.
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Drawdown Indicators
| T | TMUS | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -64.15% | -86.29% | +22.14% |
Max Drawdown (1Y)Largest decline over 1 year | -28.89% | -34.02% | +5.13% |
Max Drawdown (3Y)Largest decline over 3 years | -28.89% | -37.13% | +8.24% |
Max Drawdown (5Y)Largest decline over 5 years | -32.01% | -37.13% | +5.12% |
Max Drawdown (10Y)Largest decline over 10 years | -42.35% | -37.13% | -5.22% |
Current DrawdownCurrent decline from peak | -14.07% | -33.58% | +19.51% |
Average DrawdownAverage peak-to-trough decline | -15.74% | -25.99% | +10.25% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 13.21% | 20.22% | -7.01% |
Volatility
T vs. TMUS - Volatility Comparison
The current volatility for AT&T Inc. (T) is 10.52%, while T-Mobile US, Inc. (TMUS) has a volatility of 16.50%. This indicates that T experiences smaller price fluctuations and is considered to be less risky than TMUS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| T | TMUS | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 10.52% | 16.50% | -5.98% |
Volatility (6M)Calculated over the trailing 6-month period | 20.87% | 24.50% | -3.63% |
Volatility (1Y)Calculated over the trailing 1-year period | 24.51% | 28.32% | -3.81% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.55% | 24.94% | -0.39% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.00% | 26.46% | -2.46% |
Dividends
T vs. TMUS - Dividend Comparison
T's dividend yield for the trailing twelve months is around 4.55%, more than TMUS's 2.22% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
T AT&T Inc. | 4.55% | 4.47% | 4.87% | 6.62% | 6.66% | 8.46% | 7.23% | 5.22% | 7.01% | 5.04% | 4.51% | 5.46% |
TMUS T-Mobile US, Inc. | 2.22% | 1.80% | 1.28% | 0.41% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Financials
T vs. TMUS - Financials Comparison
This section allows you to compare key financial metrics between AT&T Inc. and T-Mobile US, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
T vs. TMUS - Profitability Comparison
T - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, AT&T Inc. reported a gross profit of 25.25B and revenue of 31.56B. Therefore, the gross margin over that period was 80.0%.
TMUS - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, T-Mobile US, Inc. reported a gross profit of 14.76B and revenue of 22.79B. Therefore, the gross margin over that period was 64.8%.
T - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, AT&T Inc. reported an operating income of 7.04B and revenue of 31.56B, resulting in an operating margin of 22.3%.
TMUS - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, T-Mobile US, Inc. reported an operating income of 5.49B and revenue of 22.79B, resulting in an operating margin of 24.1%.
T - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, AT&T Inc. reported a net income of 4.59B and revenue of 31.56B, resulting in a net margin of 14.6%.
TMUS - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, T-Mobile US, Inc. reported a net income of 3.24B and revenue of 22.79B, resulting in a net margin of 14.2%.
Frequently Asked Questions
T and TMUS have a correlation of 0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TMUS has higher volatility (16.50%) compared to T (10.52%). In terms of maximum drawdown, T dropped -64.15% vs TMUS's -86.29%.
T currently has the higher Sharpe Ratio (-0.36 vs -0.92), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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