TMUS vs. TDS

Last updated Jun 4, 2026

TMUS (T-Mobile US, Inc.) and TDS (Telephone and Data Systems, Inc.) are both stocks. Both operate in the Telecom Services industry within the Communication Services sector. Over the past 10 years, TMUS returned 15.83%/yr vs 9.04%/yr for TDS. At a 0.39 correlation, their price movements are largely independent.

Performance

TMUS vs. TDS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T-Mobile US, Inc. (TMUS) and Telephone and Data Systems, Inc. (TDS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, TMUS achieves a -9.72% return, which is significantly lower than TDS's 24.02% return. Over the past 10 years, TMUS has outperformed TDS with an annualized return of 15.83%, while TDS has yielded a comparatively lower 9.04% annualized return.

TMUS

• 1D: -3.91%
• 1M: -6.16%
• YTD: -9.72%
• 6M: -12.08%
• 1Y: -24.20%
• 3Y*: 13.09%
• 5Y*: 5.60%
• 10Y*: 15.83%

TDS

• 1D: -2.29%
• 1M: -12.85%
• YTD: 24.02%
• 6M: 29.45%
• 1Y: 47.18%
• 3Y*: 98.37%
• 5Y*: 17.87%
• 10Y*: 9.04%

*Multi-year figures are annualized to reflect compound growth (CAGR)

TMUS vs. TDS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TMUS T-Mobile US, Inc.	-9.72%	-6.58%	39.70%	15.02%	20.71%	-13.99%	71.96%	23.28%	0.16%	10.43%
TDS Telephone and Data Systems, Inc.	24.02%	20.73%	89.02%	86.26%	-45.27%	12.04%	-24.32%	-19.98%	19.58%	-1.46%

Correlation

The correlation between TMUS and TDS is 0.26, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.26
Correlation (3Y) Calculated over the trailing 3-year period	0.23
Correlation (5Y) Calculated over the trailing 5-year period	0.29
Correlation (10Y) Calculated over the trailing 10-year period	0.35
Correlation (All Time) Calculated using the full available price history since Apr 20, 2007	0.39

The correlation between TMUS and TDS shifts across timeframes, from 0.23 (3 years) to 0.39 (all time), reflecting how their relationship changes across market environments.

Fundamentals

EPS TMUS : $9.41 TDS : $1.31
PE Ratio TMUS : 19.28 TDS : 29.86
PEG Ratio TMUS : 0.29 TDS : 8.79
PS Ratio TMUS : 2.25 TDS : 1.59
Total Revenue (TTM) TMUS : $90.53B TDS : $2.13B
Gross Profit (TTM) TMUS : $34.92B TDS : $775.87M
EBITDA (TTM) TMUS : $28.22B TDS : $746.87M

Return for Risk

TMUS vs. TDS — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

TMUS

TMUS Risk / Return Rank: 7
TMUS Sharpe Ratio Rank: 5
TMUS Sortino Ratio Rank: 7
TMUS Omega Ratio Rank: 9
TMUS Calmar Ratio Rank: 8
TMUS Martin Ratio Rank: 8

TDS

TDS Risk / Return Rank: 79
TDS Sharpe Ratio Rank: 76
TDS Sortino Ratio Rank: 81
TDS Omega Ratio Rank: 78
TDS Calmar Ratio Rank: 79
TDS Martin Ratio Rank: 83

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

TMUS vs. TDS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T-Mobile US, Inc. (TMUS) and Telephone and Data Systems, Inc. (TDS). 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.

	TMUS	TDS	Difference
Sharpe ratio: Return per unit of total volatility	-0.97	1.19	-2.17
Sortino ratio: Return per unit of downside risk	-1.36	2.43	-3.79
Omega ratio: Gain probability vs. loss probability	0.85	1.29	-0.44
Calmar ratio: Return relative to maximum drawdown	-0.85	2.60	-3.44
Martin ratio: Return relative to average drawdown	-1.40	7.75	-9.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TMUS vs. TDS - Sharpe Ratio Comparison

The current TMUS Sharpe Ratio is -0.97, which is lower than the TDS Sharpe Ratio of 1.19. The chart below compares the historical Sharpe Ratios of TMUS and TDS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	TMUS	TDS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.97	1.19	-2.17
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.24	0.28	-0.05
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.61	0.17	+0.44
Sharpe Ratio (All Time) Calculated using the full available price history	0.20	0.11	+0.09

Drawdowns

TMUS vs. TDS - Drawdown Comparison

The maximum TMUS drawdown since its inception was -86.29%, roughly equal to the maximum TDS drawdown of -88.89%. Use the drawdown chart below to compare losses from any high point for TMUS and TDS.

Drawdown Indicators

	TMUS	TDS	Difference
Max Drawdown Largest peak-to-trough decline	-86.29%	-88.89%	+2.60%
Max Drawdown (1Y) Largest decline over 1 year	-28.62%	-18.27%	-10.35%
Max Drawdown (3Y) Largest decline over 3 years	-31.99%	-33.36%	+1.37%
Max Drawdown (5Y) Largest decline over 5 years	-31.99%	-72.54%	+40.55%
Max Drawdown (10Y) Largest decline over 10 years	-31.99%	-78.98%	+46.99%
Current Drawdown Current decline from peak	-31.99%	-17.57%	-14.42%
Average Drawdown Average peak-to-trough decline	-25.95%	-47.34%	+21.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	17.33%	6.11%	+11.22%

Volatility

TMUS vs. TDS - Volatility Comparison

The current volatility for T-Mobile US, Inc. (TMUS) is 6.53%, while Telephone and Data Systems, Inc. (TDS) has a volatility of 10.55%. This indicates that TMUS experiences smaller price fluctuations and is considered to be less risky than TDS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TMUS	TDS	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.53%	10.55%	-4.02%
Volatility (6M) Calculated over the trailing 6-month period	19.07%	31.49%	-12.42%
Volatility (1Y) Calculated over the trailing 1-year period	24.92%	39.72%	-14.80%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.85%	63.88%	-40.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	26.07%	52.57%	-26.50%

Dividends

TMUS vs. TDS - Dividend Comparison

TMUS's dividend yield for the trailing twelve months is around 2.17%, less than TDS's 26.56% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TDS Telephone and Data Systems, Inc.	26.56%	0.39%	0.91%	4.03%	6.86%	3.47%	3.66%	2.60%	1.97%	2.23%	2.05%	2.18%
TMUS T-Mobile US, Inc.	2.17%	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. TDS - Profitability Comparison

The chart below illustrates the profitability comparison between T-Mobile US, Inc. and Telephone and Data Systems, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

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%.

TDS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Telephone and Data Systems, Inc. reported a gross profit of 0.00 and revenue of 309.45M. Therefore, the gross margin over that period was 0.0%.

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%.

TDS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Telephone and Data Systems, Inc. reported an operating income of 143.82M and revenue of 309.45M, resulting in an operating margin of 46.5%.

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%.

TDS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Telephone and Data Systems, Inc. reported a net income of 127.29M and revenue of 309.45M, resulting in a net margin of 41.1%.

Frequently Asked Questions

Can I hold both TMUS and TDS in my portfolio?

TMUS and TDS have a correlation of 0.26, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, TMUS or TDS?

TDS has higher volatility (10.55%) compared to TMUS (6.53%). In terms of maximum drawdown, TMUS dropped -86.29% vs TDS's -88.89%.

Which has better risk-adjusted returns?

TDS currently has the higher Sharpe Ratio (1.19 vs -0.97), 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.