TDS vs. COST

Last updated Apr 2, 2026

Compare and contrast key facts about Telephone and Data Systems, Inc. (TDS) and Costco Wholesale Corporation (COST).

Performance

TDS vs. COST - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Telephone and Data Systems, Inc. (TDS) and Costco Wholesale Corporation (COST). The values are adjusted to include any dividend payments, if applicable.

TDS vs. COST - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
TDS Telephone and Data Systems, Inc.	39.68%	20.73%	89.02%	86.26%	-45.27%	12.04%	-24.32%	-19.98%	19.58%	-1.46%
COST Costco Wholesale Corporation	15.72%	-5.39%	39.62%	49.00%	-19.05%	51.82%	32.67%	45.70%	10.60%	22.37%

Fundamentals

EPS TDS : -$0.05 COST : $25.63
PS Ratio TDS : 1.72 COST : 1.16
Total Revenue (TTM) TDS : $2.98B COST : $286.27B
Gross Profit (TTM) TDS : $1.47B COST : $19.33B
EBITDA (TTM) TDS : $828.61M COST : $12.73B

Returns By Period

In the year-to-date period, TDS achieves a 39.68% return, which is significantly higher than COST's 15.72% return. Over the past 10 years, TDS has underperformed COST with an annualized return of 9.62%, while COST has yielded a comparatively higher 22.28% annualized return.

TDS

• 1D: 4.85%
• 1M: -1.05%
• YTD: 39.68%
• 6M: 45.50%
• 1Y: 46.57%
• 3Y*: 79.90%
• 5Y*: 23.61%
• 10Y*: 9.62%

COST

• 1D: 0.01%
• 1M: -0.62%
• YTD: 15.72%
• 6M: 8.94%
• 1Y: 4.99%
• 3Y*: 27.83%
• 5Y*: 24.29%
• 10Y*: 22.28%

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

Return for Risk

TDS vs. COST — Risk / Return Rank

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

TDS

TDS Risk / Return Rank: 79
TDS Sharpe Ratio Rank: 76
TDS Sortino Ratio Rank: 79
TDS Omega Ratio Rank: 77
TDS Calmar Ratio Rank: 81
TDS Martin Ratio Rank: 81

COST

COST Risk / Return Rank: 46
COST Sharpe Ratio Rank: 50
COST Sortino Ratio Rank: 41
COST Omega Ratio Rank: 40
COST Calmar Ratio Rank: 48
COST Martin Ratio Rank: 48

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.

TDS vs. COST - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Telephone and Data Systems, Inc. (TDS) and Costco Wholesale Corporation (COST). 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.

	TDS	COST	Difference
Sharpe ratio Return per unit of total volatility	1.10	0.25	+0.85
Sortino ratio Return per unit of downside risk	2.11	0.50	+1.61
Omega ratio Gain probability vs. loss probability	1.27	1.06	+0.21
Calmar ratio Return relative to maximum drawdown	2.45	0.31	+2.15
Martin ratio Return relative to average drawdown	6.51	0.61	+5.89
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

TDS vs. COST - Sharpe Ratio Comparison

The current TDS Sharpe Ratio is 1.10, which is higher than the COST Sharpe Ratio of 0.25. The chart below compares the historical Sharpe Ratios of TDS and COST, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	TDS	COST	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.10	0.25	+0.85
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.37	1.08	-0.71
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.18	1.02	-0.84
Sharpe Ratio (All Time) Calculated using the full available price history	0.12	0.59	-0.48

Correlation

The correlation between TDS and COST is 0.24, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.

Dividends

TDS vs. COST - Dividend Comparison

TDS's dividend yield for the trailing twelve months is around 23.58%, more than COST's 0.52% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
TDS Telephone and Data Systems, Inc.	23.58%	0.39%	0.91%	4.03%	6.86%	3.47%	3.66%	2.60%	1.97%	2.23%	2.05%	2.18%
COST Costco Wholesale Corporation	0.52%	0.59%	0.49%	2.87%	0.76%	0.54%	3.38%	0.86%	1.08%	4.81%	1.09%	4.06%

Drawdowns

TDS vs. COST - Drawdown Comparison

The maximum TDS drawdown since its inception was -88.89%, which is greater than COST's maximum drawdown of -53.39%. Use the drawdown chart below to compare losses from any high point for TDS and COST.

Drawdown Indicators

	TDS	COST	Difference
Max Drawdown Largest peak-to-trough decline	-88.89%	-53.39%	-35.50%
Max Drawdown (1Y) Largest decline over 1 year	-19.69%	-19.35%	-0.34%
Max Drawdown (5Y) Largest decline over 5 years	-72.54%	-31.40%	-41.14%
Max Drawdown (10Y) Largest decline over 10 years	-78.98%	-31.40%	-47.58%
Current Drawdown Current decline from peak	-7.16%	-6.95%	-0.21%
Average Drawdown Average peak-to-trough decline	-47.53%	-13.40%	-34.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.43%	9.67%	-2.24%

Volatility

TDS vs. COST - Volatility Comparison

Telephone and Data Systems, Inc. (TDS) has a higher volatility of 9.05% compared to Costco Wholesale Corporation (COST) at 4.38%. This indicates that TDS's price experiences larger fluctuations and is considered to be riskier than COST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	TDS	COST	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.05%	4.38%	+4.67%
Volatility (6M) Calculated over the trailing 6-month period	30.18%	13.33%	+16.85%
Volatility (1Y) Calculated over the trailing 1-year period	42.62%	20.08%	+22.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	63.79%	22.51%	+41.28%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	52.57%	21.90%	+30.67%

Financials

TDS vs. COST - Profitability Comparison

The chart below illustrates the profitability comparison between Telephone and Data Systems, Inc. and Costco Wholesale Corporation over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

TDS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Telephone and Data Systems, Inc. reported a gross profit of 8.17M and revenue of 330.71M. Therefore, the gross margin over that period was 2.5%.

COST - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Costco Wholesale Corporation reported a gross profit of -8.80B and revenue of 69.60B. Therefore, the gross margin over that period was -12.6%.

TDS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Telephone and Data Systems, Inc. reported an operating income of 8.17M and revenue of 330.71M, resulting in an operating margin of 2.5%.

COST - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Costco Wholesale Corporation reported an operating income of 2.61B and revenue of 69.60B, resulting in an operating margin of 3.7%.

TDS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Telephone and Data Systems, Inc. reported a net income of 56.47M and revenue of 330.71M, resulting in a net margin of 17.1%.

COST - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Costco Wholesale Corporation reported a net income of 2.04B and revenue of 69.60B, resulting in a net margin of 2.9%.