KT vs IRDM vs TMUS Stock Comparison

Kt, Iridium Communications and T-Mobile US Prices as of Oct 23, 2026 Peers: Industry group
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KT Kt Corp
$17.31 -11.0% 1M -7.6% 1Y
Market cap
$8.26B
P/E
6.8x
Revenue (TTM)
$19.92B
Div. yield
–
Wireless Carriers Communication Services
5 wins
IRDM Iridium Communications Inc.
$44.40 -8.1% 1M +144.1% 1Y
Market cap
$4.78B
P/E
29.3x
Revenue (TTM)
$902.97M
Div. yield
0.01%
Satellite Communications Communication Services
2 wins
TMUS T-Mobile US, Inc.
$146.54 -11.5% 1M -33.4% 1Y
Market cap
$158.88B
P/E
15.0x
Revenue (TTM)
$92.19B
Div. yield
0.03%
Wireless Carriers Communication Services
5 wins

Head to Head

12 decided of 12

T-Mobile US leads on 5 of the 12 questions below (T-Mobile US 5, Kt 5, Iridium Communications 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionKTIRDMTMUSLeader
Larger companyMarket capitalisation $8.26B $4.78B $158.88B TMUS
Cheaper on earningsLower P/E, profitable companies only 6.8x 29.3x 15.0x KT
Cheaper on forward earningsLower price / next fiscal year consensus EPS 8.4x 48.3x 12.9x KT
Faster revenue growthRevenue growth, trailing twelve months +2.7% +3.6% +9.7% TMUS
More profitableNet margin, trailing twelve months 6.1% 18.1% 11.5% IRDM
Better return on capitalReturn on invested capital 8.3% 5.1% 9.9% TMUS
Less leveragedLower net debt / EBITDA — 5.1x 2.5x TMUS
Higher dividend yieldTrailing dividend yield 0.00% 0.01% 0.03% TMUS
Better 1-year returnPrice return, last 12 months -7.6% +144.1% -33.4% IRDM
Better 5-year returnAnnualised price return, 5 years +5.3%/yr +1.8%/yr +4.6%/yr KT
Less volatileAnnualised volatility, 1 year 22.8% 58.9% 35.6% KT
Higher overall scoreMean of the five percentile scores vs peers 72/100 45/100 67/100 KT

Percentile Scorecard

KTIRDMTMUS

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisKTIRDMTMUS
Valuation 92 #5 of 49 27 #36 of 49 48 #26 of 49
Growth 80 #10 of 46 73 #13 of 46 78 #11 of 46
Profitability 62 #18 of 46 64 #17 of 46 87 #7 of 46
Financial Health 67 #17 of 50 31 #35 of 50 43 #29 of 50
Shareholder Returns 57 #16 of 36 31 #25 of 36 80 #8 of 36
Overall 72 45 67
  • KT ranked among 51 companies in Telecommunications
  • IRDM ranked among 51 companies in Telecommunications
  • TMUS ranked among 51 companies in Telecommunications

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodKTIRDMTMUSSPY
1 month -11.0%-8.1%-11.5% -1.0%
3 months -6.8%-3.0%-18.6% +2.9%
6 months -20.1%+14.0%-22.8% +6.4%
Year to date -8.8%+155.5%-27.8% +11.4%
1 year -7.6%+144.1%-33.4% +13.1%
3 years +42.7%+17.6%+3.9% +79.4%
3 years, per year +12.6%+5.5%+1.3% +21.5%
5 years +29.3%+9.5%+25.4% +67.7%
5 years, per year +5.3%+1.8%+4.6% +10.9%
10 years +8.4%+420.5%+213.5% +255.2%
10 years, per year +0.8%+17.9%+12.1% +13.5%

Risk

MeasureKTIRDMTMUSSPY
Volatility, 1Y 22.8%58.9%35.6% 12.7%
Downside volatility, 1Y 24.1%44.4%42.0% 12.7%
Beta vs S&P 500, 1Y 0.501.36-0.38 1.00
Return / volatility, 1Y -0.332.45-0.94 1.03
Max drawdown, 5Y -29.6%-76.4%-46.3% -25.4%
From 52-week high -29.5%-20.3%-34.0% -2.5%
52-week high $24.54$55.72$221.98 $779.14
52-week low $17.28$15.84$146.54 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleKTIRDMTMUS
P/E now vs peer median 6.9xmedian 11.6x 29.2xmedian 11.6x 15.0xmedian 11.6x
P/S now vs peer median 0.4xmedian 1.1x 5.2xmedian 1.1x 1.7xmedian 1.1x
EV/EBITDA now vs peer median —median 6.9x 17.0xmedian 6.9x 7.3xmedian 6.9x
P/FCF now vs peer median 8.2xmedian 5.6x 17.0xmedian 5.6x 8.6xmedian 5.6x
P/B now vs peer median 0.7xmedian 1.3x 8.2xmedian 1.3x 2.8xmedian 1.3x
PEG now vs peer median 0.98median 0.24 0.25median 0.24 0.63median 0.24

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsKTIRDMTMUS
Revenue $19.92B $902.97M $92.19B
Gross profit – $645.23M $57.33B
Operating income $1.79B $171.59M $18.25B
Net income $1.29B $163.03M $10.56B
Free cash flow $1.02B $277.57M $18.40B
R&D – $21.63M –
EPS (diluted) $2.50 $1.50 $9.76
Cash & equivalents $2.44B $97.85M $2.83B
Total debt $12.82B $7.47B $84.62B
Shares (diluted) 486.18M 108.93M 1.08B
Enterprise value -$5.99B $4.29B $143.63B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricKTIRDMTMUS
P/E 6.9x 29.2x 15.0x
P/FCF 8.2x 17.0x 8.6x
P/Operating cash flow 2.4x 12.1x 5.5x
P/S 0.4x 5.2x 1.7x
P/B 0.7x 8.2x 2.8x
P/Tangible book 0.7x 21.9x -3.8x
EV/EBITDA – 17.0x 7.3x
EV/EBIT 7.7x 39.4x 13.1x
EV/Revenue 0.7x 7.5x 2.6x
EV/FCF 13.5x 24.3x 13.0x
EV/Operating cash flow 3.9x 17.3x 8.3x
PEG (3Y EPS CAGR) 0.98 0.25 0.63

Growth

14 metrics
MetricKTIRDMTMUS
Revenue growth (1Y) 2.7% 3.6% 9.7%
Revenue CAGR (3Y) 9.7% 4.6% 5.5%
Gross profit growth (1Y) – 3.8% 7.2%
Gross profit CAGR (3Y) – 4.6% 7.2%
Operating income growth (1Y) 263.1% -26.3% -5.9%
Operating income CAGR (3Y) 13.5% 46.9% 17.6%
Net income growth (1Y) 11.3% 29.5% -13.5%
Net income CAGR (3Y) 27.9% 107.7% 19.8%
EPS growth (1Y) 246.5% 26.6% -9.4%
EPS CAGR (3Y) 7.0% 115.5% 23.8%
Operating cash flow growth (1Y) -6.2% -1.5% 13.0%
Operating cash flow CAGR (3Y) 7.0% 7.1% 18.9%
Free cash flow growth (1Y) -38.3% -9.1% 11.5%
Free cash flow CAGR (3Y) 33.6% 5.9% 62.0%

Profitability

14 metrics
MetricKTIRDMTMUS
Gross margin – 71.5% 62.2%
EBITDA margin – 43.9% 35.4%
Operating margin 9.0% 19.0% 19.8%
Pretax margin 8.5% 9.3% 15.0%
Net margin 6.1% 18.1% 11.5%
FCF margin 5.1% 30.7% 20.0%
Operating cash flow margin 17.5% 43.2% 31.3%
Return on equity 11.2% 11.8% 18.8%
Return on assets 4.3% 2.2% 4.9%
Return on invested capital 8.3% 5.1% 9.9%
Return on capital employed 8.1% 6.9% 9.6%
Asset turnover 0.7x 0.3x 0.4x
Cash conversion (OCF / net income) 2.7x 2.4x 2.7x
Stock comp / revenue – 6.3% 0.9%

Financial Health

11 metrics
MetricKTIRDMTMUS
Debt / assets 29.9% 69.4% 39.6%
Debt / equity 0.7x 3.7x 1.5x
Net debt / EBITDA – 5.1x 2.5x
Debt / FCF 8.8x 7.7x 4.6x
Liabilities / assets 59.1% 81.3% 73.7%
Equity / assets 40.9% 18.7% 26.3%
Interest coverage 3.3x – –
Current ratio 1.2x 0.9x 0.9x
Quick ratio 1.3x 0.6x 0.4x
Cash ratio 0.4x 0.3x 0.1x
Altman Z-score 1.69 1.47 1.47

Shareholder Returns

7 metrics
MetricKTIRDMTMUS
Dividend yield 4.7% 1.4% 2.8%
Net buyback yield 2.0% 0.0% 7.7%
Shareholder yield 6.7% 1.3% 10.4%
Payout ratio (earnings) – 39.9% 41.1%
Payout ratio (FCF) – 23.4% 23.6%
Dividend growth (1Y) – 3.9% 15.2%
Dividend CAGR (3Y) – 10.0% –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusKTIRDMTMUS
Forward P/E 8.4xFY2026 48.3xFY2026 12.9xFY2026
EPS, next fiscal year $2.06FY2026 $0.92FY2026 $11.36FY2026
EPS growth, next FY -13.1%FY2026 -13.2%FY2026 +16.9%FY2026
EPS growth, the year after +11.2% +56.5% +30.5%
Revenue, next fiscal year $20.97BFY2026 $979.23MFY2026 $96.73BFY2026
Revenue growth, next FY +7.7%FY2026 +12.3%FY2026 +9.5%FY2026
Revenue growth, the year after -7.8% +1.3% +6.6%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersKTIRDMTMUS
Held by institutions 34.8% 85.3% 43.1%
Institutions holding 244 479 1,656
Change in shares held, QoQ +8.3% +2.2% +4.7%
Institutions buying 135 305 849
Institutions selling 78 124 630
Buyers to sellers 1.73 2.46 1.35

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

KTIRDMTMUS
KT 1.00 0.01 0.09
IRDM 0.01 1.00 -0.12
TMUS 0.09 -0.12 1.00

Add a Peer

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Frequently Asked Questions

Which is bigger, KT, IRDM and TMUS?

T-Mobile US (TMUS) is the largest by market capitalisation: Kt (KT) $8.26B, Iridium Communications (IRDM) $4.78B, T-Mobile US (TMUS) $158.88B.

Which stock is cheaper, KT, IRDM and TMUS?

Kt (KT) trades on the lowest price-to-earnings ratio (Kt (KT) 6.8x, Iridium Communications (IRDM) 29.3x, T-Mobile US (TMUS) 15.0x). On next year's consensus earnings, Kt (KT) is cheapest (Kt (KT) 8.4x, Iridium Communications (IRDM) 48.3x, T-Mobile US (TMUS) 12.9x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

T-Mobile US (TMUS) grew revenue fastest over the trailing twelve months: Kt (KT) +2.7%, Iridium Communications (IRDM) +3.6%, T-Mobile US (TMUS) +9.7%.

Which company is more profitable?

Iridium Communications (IRDM) has the highest net margin (Kt (KT) 6.1%, Iridium Communications (IRDM) 18.1%, T-Mobile US (TMUS) 11.5%). On return on invested capital, T-Mobile US (TMUS) leads (Kt (KT) 8.3%, Iridium Communications (IRDM) 5.1%, T-Mobile US (TMUS) 9.9%).

Which stock has performed better?

Over the past year Iridium Communications (IRDM) returned the most: Kt (KT) -7.6%, Iridium Communications (IRDM) +144.1%, T-Mobile US (TMUS) -33.4%. Over five years, Kt (KT) compounded fastest (Kt (KT) +5.3%/yr, Iridium Communications (IRDM) +1.8%/yr, T-Mobile US (TMUS) +4.6%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

T-Mobile US (TMUS) has the highest dividend yield: Kt (KT) 0.00%, Iridium Communications (IRDM) 0.01%, T-Mobile US (TMUS) 0.03%. Kt (KT) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Kt (KT) has been the steadiest (Kt (KT) 22.8%, Iridium Communications (IRDM) 58.9%, T-Mobile US (TMUS) 35.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, KT, IRDM and TMUS?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, T-Mobile US (TMUS) leads on 5. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.