TMUS vs. SO
TMUS (T-Mobile US, Inc.) and SO (The Southern Company) are both stocks. TMUS operates in Telecom Services (Communication Services), while SO operates in Utilities - Regulated Electric (Utilities). Over the past 10 years, TMUS returned 16.66%/yr vs 10.77%/yr for SO. At a 0.23 correlation, their price movements are largely independent.
Performance
TMUS vs. SO - Performance Comparison
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Returns By Period
In the year-to-date period, TMUS achieves a -5.91% return, which is significantly lower than SO's 10.02% return. Over the past 10 years, TMUS has outperformed SO with an annualized return of 16.66%, while SO has yielded a comparatively lower 10.77% annualized return.
TMUS
- 1D
- 1.77%
- 1M
- 2.65%
- YTD
- -5.91%
- 6M
- -2.11%
- 1Y
- -15.50%
- 3Y*
- 15.04%
- 5Y*
- 6.35%
- 10Y*
- 16.66%
SO
- 1D
- 1.22%
- 1M
- 2.86%
- YTD
- 10.02%
- 6M
- 13.62%
- 1Y
- 7.91%
- 3Y*
- 14.19%
- 5Y*
- 12.20%
- 10Y*
- 10.77%
TMUS vs. SO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TMUS T-Mobile US, Inc. | -5.91% | -6.58% | 39.70% | 15.02% | 20.71% | -13.99% | 71.96% | 23.28% | 0.16% | 10.43% |
SO The Southern Company | 10.02% | 9.47% | 21.72% | 2.21% | 8.24% | 16.34% | 0.63% | 51.65% | -3.75% | 2.42% |
Correlation
The correlation between TMUS and SO is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.34 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.36 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.34 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.27 |
Correlation (All Time) Calculated using the full available price history since Apr 19, 2007 | 0.23 |
The correlation between TMUS and SO shifts across timeframes, from 0.23 (all time) to 0.36 (3 years), reflecting how their relationship changes across market environments.
Fundamentals
TMUS:
$208.40B
SO:
$106.03B
TMUS:
$9.41
SO:
$3.92
TMUS:
20.09
SO:
23.98
TMUS:
0.31
SO:
1.49
TMUS:
2.34
SO:
3.47
TMUS:
3.73
SO:
2.86
TMUS:
$90.53B
SO:
$30.17B
TMUS:
$34.92B
SO:
$13.01B
TMUS:
$28.22B
SO:
$14.44B
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Return for Risk
TMUS vs. SO — Risk / Return Rank
TMUS
SO
TMUS vs. SO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for T-Mobile US, Inc. (TMUS) and The Southern Company (SO). 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.
| TMUS | SO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.12 | ||
| Sortino ratioReturn per unit of downside risk | -1.60 | ||
| Omega ratioGain probability vs. loss probability | 0.91 | 1.10 | -0.19 |
| Calmar ratioReturn relative to maximum drawdown | -0.52 | 0.53 | -1.05 |
| Martin ratioReturn relative to average drawdown | -0.88 | 1.24 | -2.12 |
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Drawdowns
TMUS vs. SO - Drawdown Comparison
The maximum TMUS drawdown since its inception was -86.29%, which is greater than SO's maximum drawdown of -38.43%. Use the drawdown chart below to compare losses from any high point for TMUS and SO.
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Drawdown Indicators
| TMUS | SO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -86.29% | -38.43% | -47.86% |
Max Drawdown (1Y)Largest decline over 1 year | -30.37% | -14.99% | -15.38% |
Max Drawdown (3Y)Largest decline over 3 years | -33.65% | -14.99% | -18.66% |
Max Drawdown (5Y)Largest decline over 5 years | -33.65% | -23.28% | -10.37% |
Max Drawdown (10Y)Largest decline over 10 years | -33.65% | -38.43% | +4.78% |
Current DrawdownCurrent decline from peak | -29.12% | -3.95% | -25.17% |
Average DrawdownAverage peak-to-trough decline | -25.96% | -6.87% | -19.09% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 17.87% | 6.39% | +11.48% |
Volatility
TMUS vs. SO - Volatility Comparison
T-Mobile US, Inc. (TMUS) has a higher volatility of 7.72% compared to The Southern Company (SO) at 6.03%. This indicates that TMUS's price experiences larger fluctuations and is considered to be riskier than SO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TMUS | SO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.72% | 6.03% | +1.69% |
Volatility (6M)Calculated over the trailing 6-month period | 19.08% | 13.07% | +6.01% |
Volatility (1Y)Calculated over the trailing 1-year period | 24.99% | 16.21% | +8.78% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.90% | 18.67% | +5.23% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 26.08% | 21.96% | +4.12% |
Dividends
TMUS vs. SO - Dividend Comparison
TMUS's dividend yield for the trailing twelve months is around 2.08%, less than SO's 3.60% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SO The Southern Company | 3.60% | 3.37% | 3.47% | 3.96% | 3.78% | 3.82% | 4.13% | 3.86% | 5.42% | 4.78% | 4.52% | 4.60% |
TMUS T-Mobile US, Inc. | 2.08% | 1.80% | 1.28% | 0.41% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Financials
TMUS vs. SO - Financials Comparison
This section allows you to compare key financial metrics between T-Mobile US, Inc. and The Southern Company. 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
TMUS vs. SO - Profitability Comparison
TMUS - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, T-Mobile US, Inc. reported a gross profit of 0.00 and revenue of 23.11B. Therefore, the gross margin over that period was 0.0%.
SO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, The Southern Company reported a gross profit of 3.90B and revenue of 8.40B. Therefore, the gross margin over that period was 46.5%.
TMUS - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, T-Mobile US, Inc. reported an operating income of 4.50B and revenue of 23.11B, resulting in an operating margin of 19.5%.
SO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, The Southern Company reported an operating income of 2.02B and revenue of 8.40B, resulting in an operating margin of 24.0%.
TMUS - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, T-Mobile US, Inc. reported a net income of 2.50B and revenue of 23.11B, resulting in a net margin of 10.8%.
SO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, The Southern Company reported a net income of 1.36B and revenue of 8.40B, resulting in a net margin of 16.2%.
Frequently Asked Questions
TMUS and SO have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
TMUS has higher volatility (7.72%) compared to SO (6.03%). In terms of maximum drawdown, TMUS dropped -86.29% vs SO's -38.43%.
SO currently has the higher Sharpe Ratio (0.49 vs -0.63), 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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