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SKM vs. TMUS: SK Telecom vs. T-Mobile US Stock Comparison

How do SK Telecom (SKM) and T-Mobile US (TMUS) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

SK Telecom (SKM) and T-Mobile US (TMUS) are both classified in the Wireless Telecommunication Services sub-industry within the broader Wireless Telecommunication Services industry, placing them in the closest GICS peer bucket.

T-Mobile US (TMUS) trades as ordinary local shares, while SK Telecom (SKM) trades as an ADR — compare with FX exposure, depositary-program fees, and dividend-withholding-tax differences in mind.

Company profile comparison for SK Telecom (SKM) and T-Mobile US (TMUS)
Profile ItemSKMTMUS
NameSK Telecom Co., Ltd. Sponsored ADRT-Mobile US Inc.
Country/RegionSouth KoreaUnited States
GICS SectorCommunication ServicesCommunication Services
GICS Industry GroupTelecommunication ServicesTelecommunication Services
GICS IndustryWireless Telecommunication ServicesWireless Telecommunication Services
GICS Sub-IndustryWireless Telecommunication ServicesWireless Telecommunication Services
Market Capitalization11.99 billion USD171.61 billion USD
CurrencyUSDUSD
ExchangeNYSENasdaq
Listing DateJune 27, 1996April 19, 2007
Security TypeADRCommon Stock

Price Performance

Cumulative Growth

SKM
TMUS
GSPC
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SK Telecom (SKM) vs. T-Mobile US (TMUS), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for SK Telecom (SKM) and T-Mobile US (TMUS). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for SK Telecom (SKM) and T-Mobile US (TMUS). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for SK Telecom (SKM) and T-Mobile US (TMUS)
MetricSKMTMUS
Total Return (1Y)59.22%-16.70%
Total Return (3Y, Annualized)18.66%6.53%
Total Return (5Y, Annualized)6.83%8.18%

Risk Profile

Drawdown History

SKM
TMUS
GSPC
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SK Telecom (SKM) vs. T-Mobile US (TMUS), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for SK Telecom (SKM) and T-Mobile US (TMUS). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for SK Telecom (SKM) and T-Mobile US (TMUS)
MetricSKMTMUS
Volatility (1Y, Annualized)51.22%35.01%
Beta (5Y)0.860.36
Max Drawdown (5Y)-36.04%-44.76%
Avg. Volume (3M)1.45M5.44M

Risk-Adjusted Performance

Risk-Return Positioning

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SKM and TMUS are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for SK Telecom (SKM) and T-Mobile US (TMUS)
MetricSKMTMUS
Sharpe Ratio (1Y)1.07-0.60
Sortino Ratio (1Y)1.70-0.77

Profitability

ROE (TTM)

Capital efficiency shows on one side only: T-Mobile US (TMUS) earns 19.35% on shareholders’ equity, ranked against its industry; SK Telecom (SKM) has no ROE this period.

SKM

Telecommunication Services industry group

--

Max
31.74%
Q3
17.02%
Median
7.32%
Q1
-5.16%
Min
-20.26%
SKM
--

TMUS

Telecommunication Services industry group

19.35%

Max
31.74%
TMUS
19.35%
Q3
17.02%
Median
7.32%
Q1
-5.16%
Min
-20.26%
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SK Telecom (SKM) vs. T-Mobile US (TMUS): SKM does not report ROE, so it has no value marker; TMUS is benchmarked against the Telecommunication Services industry group.

Net Margin (TTM)

T-Mobile US (TMUS) at 12.05% retains a top-quartile share of revenue as profit, ahead of SK Telecom (SKM) at 7.50%, which keeps about the industry-typical share.

SKM

Telecommunication Services industry group

7.50%

Max
30.45%
Q3
11.78%
SKM
7.50%
Median
7.20%
Q1
-3.86%
Min
-18.49%

TMUS

Telecommunication Services industry group

12.05%

Max
30.45%
TMUS
12.05%
Q3
11.78%
Median
7.20%
Q1
-3.86%
Min
-18.49%
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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their net margin against the Telecommunication Services industry group benchmark.

Operating Margin (TTM)

T-Mobile US (TMUS) at 24.75% operates in the top operating margin quartile, ahead of SK Telecom (SKM) at 12.28%, which runs around its industry’s norm.

SKM

Telecommunication Services industry group

12.28%

Max
35.53%
Q3
22.79%
Median
12.87%
SKM
12.28%
Q1
0.82%
Min
-29.20%

TMUS

Telecommunication Services industry group

24.75%

Max
35.53%
TMUS
24.75%
Q3
22.79%
Median
12.87%
Q1
0.82%
Min
-29.20%
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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their operating margin against the Telecommunication Services industry group benchmark.

Profitability Metrics

Profitability metrics for SK Telecom (SKM) and T-Mobile US (TMUS)
MetricSKMTMUS
ROE (TTM)--19.35%
ROA (TTM)--6.19%
Net Margin (TTM)7.50%12.05%
Operating Margin (TTM)12.28%24.75%
Gross Margin (TTM)64.61%62.98%

Growth

Revenue Growth

T-Mobile US (TMUS) at 8.49% is around its peer norm for revenue growth, while SK Telecom (SKM) at -4.69% drops into the bottom quartile, signaling weaker demand or pricing momentum.

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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both SK Telecom (SKM) at -68.34% and T-Mobile US (TMUS) at 0.62% land near their industries' usual EPS growth ranges, so bottom-line momentum looks broadly in line with peers on both sides.

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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for SK Telecom (SKM) and T-Mobile US (TMUS)
MetricSKMTMUS
Revenue Growth (YoY)-4.69%8.49%
Revenue Growth (3Y CAGR)-0.40%3.53%
EPS Growth (YoY)-68.34%0.62%
EPS Growth (3Y CAGR)-23.75%67.73%

Financial Strength

Current Ratio (MRQ)

Both SK Telecom (SKM) at 1.20 and T-Mobile US (TMUS) at 0.91 carry current ratio within their industries’ typical mid-ranges, suggesting balanced short-term liquidity relative to peers.

SKM

Telecommunication Services industry group

1.20

Max
2.85
Q3
1.64
SKM
1.20
Median
0.97
Q1
0.78
Min
0.26

TMUS

Telecommunication Services industry group

0.91

Max
2.85
Q3
1.64
Median
0.97
TMUS
0.91
Q1
0.78
Min
0.26
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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their current ratio against the Telecommunication Services industry group benchmark.

Debt / Equity (MRQ)

SK Telecom (SKM) at 0.43 keeps leverage in the lower quartile, while T-Mobile US (TMUS) at 2.11 sits in the higher-leverage quartile.

SKM

Telecommunication Services industry group

0.43

Max
3.94
Q3
2.11
Median
1.32
Q1
0.65
SKM
0.43
Min
0.00

TMUS

Telecommunication Services industry group

2.11

Max
3.94
TMUS
2.11
Q3
2.11
Median
1.32
Q1
0.65
Min
0.00
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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their debt-to-equity ratio against the Telecommunication Services industry group benchmark.

Financial Strength Metrics

Financial strength metrics for SK Telecom (SKM) and T-Mobile US (TMUS)
MetricSKMTMUS
Current Ratio (MRQ)1.200.91
Debt / Equity (MRQ)0.432.11
Net Debt / EBITDA0.903.21

Dividends

Dividend Yield (TTM)

SK Telecom (SKM) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile T-Mobile US (TMUS) reports a yield of 2.63%, ranking against industry peers normally.

SKM

Telecommunication Services industry group

0.00%

Max
6.10%
Q3
2.63%
SKM
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%

TMUS

Telecommunication Services industry group

2.63%

Max
6.10%
TMUS
2.63%
Q3
2.63%
Median
0.00%
Q1
0.00%
Min
0.00%
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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their dividend yield against the Telecommunication Services industry group benchmark.

Dividend Payout Ratio (TTM)

Both SK Telecom (SKM) at 47.95% and T-Mobile US (TMUS) at 39.34% keep payout ratio within their industries’ typical mid-ranges — dividend policies that share earnings without consuming too much of them.

SKM

Telecommunication Services industry group

47.95%

Max
121.72%
Q3
68.18%
SKM
47.95%
Median
4.06%
Q1
0.00%
Min
0.00%

TMUS

Telecommunication Services industry group

39.34%

Max
121.72%
Q3
68.18%
TMUS
39.34%
Median
4.06%
Q1
0.00%
Min
0.00%
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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their payout ratio against the Telecommunication Services industry group benchmark.

Dividend Metrics

Dividend metrics for SK Telecom (SKM) and T-Mobile US (TMUS)
MetricSKMTMUS
Dividend Yield (TTM)0.00%2.63%
Dividend Payout Ratio (TTM)47.95%39.34%

Valuation

P/E Ratio (TTM)

T-Mobile US (TMUS) at 15.62 is near its industry’s usual P/E ratio, while SK Telecom (SKM) at 23.84 sits in the richer quartile — SKM needs stronger growth or earnings quality to justify the premium.

SKM

Telecommunication Services industry group

23.84

Max
30.40
SKM
23.84
Q3
23.75
Median
13.30
Q1
8.65
Min
2.50

TMUS

Telecommunication Services industry group

15.62

Max
30.40
Q3
23.75
TMUS
15.62
Median
13.30
Q1
8.65
Min
2.50
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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their P/E ratio against the Telecommunication Services industry group benchmark.

P/S Ratio (TTM)

SK Telecom (SKM) at 0.00 looks cheap on sales in the lower P/S ratio quartile, while T-Mobile US (TMUS) at 1.83 looks rich in the upper quartile — a clear gap in price per dollar of revenue.

SKM

Telecommunication Services industry group

0.00

Max
3.01
Q3
1.73
Median
0.81
Q1
0.36
SKM
0.00
Min
0.00

TMUS

Telecommunication Services industry group

1.83

Max
3.01
TMUS
1.83
Q3
1.73
Median
0.81
Q1
0.36
Min
0.00
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SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their P/S ratio against the Telecommunication Services industry group benchmark.

P/B Ratio (MRQ)

On P/B ratio, both SK Telecom (SKM) at 1.03 and T-Mobile US (TMUS) at 3.06 are valued close to their industries’ norm against book — neither stands out from peers.

SKM

Telecommunication Services industry group

1.03

Max
8.10
Q3
3.98
Median
1.53
SKM
1.03
Q1
0.65
Min
-2.39

TMUS

Telecommunication Services industry group

3.06

Max
8.10
Q3
3.98
TMUS
3.06
Median
1.53
Q1
0.65
Min
-2.39
Loading chart…
SK Telecom (SKM) vs. T-Mobile US (TMUS): A comparison of their P/B ratio against the Telecommunication Services industry group benchmark.

Valuation Metrics

Valuation metrics for SK Telecom (SKM) and T-Mobile US (TMUS)
MetricSKMTMUS
P/E Ratio (TTM)23.8415.62
P/S Ratio (TTM)0.001.83
P/B Ratio (MRQ)1.033.06
Free Cash Flow Yield (TTM)--9.53%