IRDM vs ASTS vs KT Stock Comparison

Iridium Communications, AST SpaceMobile and Kt Prices as of Oct 26, 2026 Peers: Industry group
IRDM Iridium Communications Inc.
$44.51 -8.7% 1M +145.4% 1Y
Market cap
$4.87B
P/E
29.9x
Revenue (TTM)
$902.97M
Div. yield
0.01%
Satellite Communications Communication Services
2 wins
ASTS AST SpaceMobile, Inc.
$39.45 -36.2% 1M -46.5% 1Y
Market cap
$12.61B
P/E
–
Revenue (TTM)
$115.30M
Div. yield
–
Satellite Communications Communication Services
4 wins
KT Kt Corp
$16.98 -13.7% 1M -8.8% 1Y
Market cap
$8.23B
P/E
6.8x
Revenue (TTM)
$19.92B
Div. yield
–
Wireless Carriers Communication Services
5 wins

Head to Head

11 decided of 12

Kt leads on 5 of the 12 questions below (Kt 5, AST SpaceMobile 4, Iridium Communications 2). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionIRDMASTSKTLeader
Larger companyMarket capitalisation $4.87B $12.61B $8.23B ASTS
Cheaper on earningsLower P/E, profitable companies only 29.9x -20.4x 6.8x KT
Cheaper on forward earningsLower price / next fiscal year consensus EPS 42.4x — 8.2x KT
Faster revenue growthRevenue growth, trailing twelve months +3.6% +2,256.9% +2.7% ASTS
More profitableNet margin, trailing twelve months 18.1% -536.7% 6.1% IRDM
Better return on capitalReturn on invested capital 5.1% -12.2% 8.3% KT
Less leveragedLower net debt / EBITDA 5.1x -1.1x — ASTS
Higher dividend yieldTrailing dividend yield 0.01% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +145.4% -46.5% -8.8% IRDM
Better 5-year returnAnnualised price return, 5 years +2.2%/yr +29.6%/yr +5.2%/yr ASTS
Less volatileAnnualised volatility, 1 year 59.0% 108.0% 22.9% KT
Higher overall scoreMean of the five percentile scores vs peers 47/100 24/100 73/100 KT

Percentile Scorecard

IRDMASTSKT

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

AxisIRDMASTSKT
Valuation 27 #36 of 49 2 #48 of 49 90 #6 of 49
Growth 75 #12 of 45 32 #31 of 45 80 #10 of 45
Profitability 66 #16 of 45 0 #45 of 45 64 #17 of 45
Financial Health 31 #34 of 49 79 #11 of 49 71 #15 of 49
Shareholder Returns 36 #24 of 37 6 #35 of 37 61 #15 of 37
Overall 47 24 73
  • IRDM ranked among 51 companies in Telecommunications
  • ASTS ranked among 51 companies in Telecommunications
  • KT ranked among 51 companies in Telecommunications

Price Performance

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

Returns

PeriodIRDMASTSKTSPY
1 month -8.7%-36.2%-13.7% -0.8%
3 months -3.2%-32.3%-9.3% +3.5%
6 months +19.0%-48.9%-20.4% +7.0%
Year to date +156.1%-45.7%-10.5% +12.2%
1 year +145.4%-46.5%-8.8% +13.0%
3 years +23.5%+1,193.4%+43.3% +86.3%
3 years, per year +7.3%+134.9%+12.7% +23.1%
5 years +11.4%+265.6%+28.9% +68.6%
5 years, per year +2.2%+29.6%+5.2% +11.0%
10 years +456.4%—+5.5% +258.0%
10 years, per year +18.7%—+0.5% +13.6%

Risk

MeasureIRDMASTSKTSPY
Volatility, 1Y 59.0%108.0%22.9% 12.7%
Downside volatility, 1Y 44.8%107.7%24.2% 12.7%
Beta vs S&P 500, 1Y 1.383.780.49 1.00
Return / volatility, 1Y 2.46-0.43-0.38 1.02
Max drawdown, 5Y -76.4%-85.6%-30.8% -25.4%
From 52-week high -20.1%-70.4%-30.8% -1.8%
52-week high $55.72$133.09$24.54 $779.14
52-week low $15.84$38.77$16.98 $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.

MultipleIRDMASTSKT
P/E now vs peer median 29.3xmedian 11.8x -19.1xmedian 11.8x 6.8xmedian 11.8x
P/S now vs peer median 5.2xmedian 1.1x 133.1xmedian 1.1x 0.4xmedian 1.1x
EV/EBITDA now vs peer median 17.1xmedian 6.8x -26.9xmedian 6.8x —median 6.8x
P/FCF now vs peer median 17.0xmedian 5.7x -9.4xmedian 5.7x 8.0xmedian 5.7x
P/B now vs peer median 8.2xmedian 1.3x 6.4xmedian 1.3x 0.7xmedian 1.3x
PEG now vs peer median 0.25median 0.24 0.44median 0.24 0.97median 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 monthsIRDMASTSKT
Revenue $902.97M $115.30M $19.92B
Gross profit $645.23M $45.16M –
Operating income $171.59M -$669.08M $1.79B
Net income $163.03M -$810.98M $1.29B
Free cash flow $277.57M -$1.64B $1.02B
R&D $21.63M $29.48M –
EPS (diluted) $1.50 $-2.07 $2.50
Cash & equivalents $97.85M $2.29B $2.44B
Total debt $2.14B $2.97B $12.82B
Shares (diluted) 108.93M 299.06M 486.18M
Enterprise value $4.38B $3.75B -$6.01B

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
MetricIRDMASTSKT
P/E 29.3x -19.1x 6.8x
P/FCF 17.0x -9.4x 8.0x
P/Operating cash flow 12.1x -106.1x 2.4x
P/S 5.2x 133.1x 0.4x
P/B 8.2x 6.4x 0.7x
P/Tangible book 22.0x 6.4x 0.7x
EV/EBITDA 17.1x -26.9x –
EV/EBIT 39.4x -24.0x 7.6x
EV/Revenue 7.5x 139.1x 0.7x
EV/FCF 24.4x -9.8x 13.3x
EV/Operating cash flow 17.3x -110.8x 3.9x
PEG (3Y EPS CAGR) 0.25 0.44 0.97

Growth

14 metrics
MetricIRDMASTSKT
Revenue growth (1Y) 3.6% 2,257% 2.7%
Revenue CAGR (3Y) 4.6% 202.4% 9.7%
Gross profit growth (1Y) 3.8% 823.1% –
Gross profit CAGR (3Y) 4.6% 201.8% –
Operating income growth (1Y) -26.3% -157.3% 263.1%
Operating income CAGR (3Y) 46.9% -51.5% 13.5%
Net income growth (1Y) 29.5% -46.2% 11.3%
Net income CAGR (3Y) 107.7% -74.8% 27.9%
EPS growth (1Y) 26.6% -41.9% 246.5%
EPS CAGR (3Y) 115.5% -43.7% 7.0%
Operating cash flow growth (1Y) -1.5% -8.1% -6.2%
Operating cash flow CAGR (3Y) 7.1% 2.5% 7.0%
Free cash flow growth (1Y) -9.1% -142.0% -38.3%
Free cash flow CAGR (3Y) 5.9% -100.7% 33.6%

Profitability

14 metrics
MetricIRDMASTSKT
Gross margin 71.5% 39.2% –
EBITDA margin 43.9% -517.1% –
Operating margin 19.0% -580.3% 9.0%
Pretax margin 9.3% -698.8% 8.5%
Net margin 18.1% -536.7% 6.1%
FCF margin 30.7% -1,421% 5.1%
Operating cash flow margin 43.2% -125.5% 17.5%
Return on equity 11.8% -32.1% 11.2%
Return on assets 2.2% -13.6% 4.3%
Return on invested capital 5.1% -12.2% 8.3%
Return on capital employed 6.9% -11.6% 8.1%
Asset turnover 0.3x 0.0x 0.7x
Cash conversion (OCF / net income) 2.4x 0.2x 2.7x
Stock comp / revenue 6.3% 128.3% –

Financial Health

11 metrics
MetricIRDMASTSKT
Debt / assets 69.4% 50.8% 29.9%
Debt / equity 3.7x 1.2x 0.7x
Net debt / EBITDA 5.1x -1.1x –
Debt / FCF 7.7x -1.8x 8.8x
Liabilities / assets 81.3% 59.0% 59.1%
Equity / assets 18.7% 41.0% 40.9%
Interest coverage – – 3.3x
Current ratio 0.9x 13.1x 1.2x
Quick ratio 0.6x 12.5x 1.3x
Cash ratio 0.3x 12.0x 0.4x
Altman Z-score 1.47 2.48 1.69

Shareholder Returns

7 metrics
MetricIRDMASTSKT
Dividend yield 1.3% – 4.8%
Net buyback yield 0.0% -6.0% 2.1%
Shareholder yield 1.3% -6.0% 6.8%
Payout ratio (earnings) 39.9% – –
Payout ratio (FCF) 23.4% – –
Dividend growth (1Y) 3.9% – –
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.

ConsensusIRDMASTSKT
Forward P/E 42.4xFY2026 – 8.2xFY2026
EPS, next fiscal year $1.05FY2026 $-2.24FY2026 $2.06FY2026
EPS growth, next FY -0.9%FY2026 – -13.1%FY2026
EPS growth, the year after +25.7% – +11.2%
Revenue, next fiscal year $984.68MFY2026 $148.93MFY2026 $20.97BFY2026
Revenue growth, next FY +13.0%FY2026 +110.0%FY2026 +7.7%FY2026
Revenue growth, the year after +2.0% +372.6% -7.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersIRDMASTSKT
Held by institutions 85.3% 44.3% 34.8%
Institutions holding 479 754 244
Change in shares held, QoQ +2.2% +5.0% +8.3%
Institutions buying 305 543 135
Institutions selling 124 139 78
Buyers to sellers 2.46 3.91 1.73

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.

IRDMASTSKT
IRDM 1.00 0.49 0.01
ASTS 0.49 1.00 0.05
KT 0.01 0.05 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, IRDM, ASTS and KT?

AST SpaceMobile (ASTS) is the largest by market capitalisation: Iridium Communications (IRDM) $4.87B, AST SpaceMobile (ASTS) $12.61B, Kt (KT) $8.23B.

Which stock is cheaper, IRDM, ASTS and KT?

Kt (KT) trades on the lowest price-to-earnings ratio (Iridium Communications (IRDM) 29.9x, AST SpaceMobile (ASTS) -20.4x, Kt (KT) 6.8x). On next year's consensus earnings, Kt (KT) is cheapest (Iridium Communications (IRDM) 42.4x, Kt (KT) 8.2x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

AST SpaceMobile (ASTS) grew revenue fastest over the trailing twelve months: Iridium Communications (IRDM) +3.6%, AST SpaceMobile (ASTS) +2,256.9%, Kt (KT) +2.7%.

Which company is more profitable?

Iridium Communications (IRDM) has the highest net margin (Iridium Communications (IRDM) 18.1%, AST SpaceMobile (ASTS) -536.7%, Kt (KT) 6.1%). On return on invested capital, Kt (KT) leads (Iridium Communications (IRDM) 5.1%, AST SpaceMobile (ASTS) -12.2%, Kt (KT) 8.3%).

Which stock has performed better?

Over the past year Iridium Communications (IRDM) returned the most: Iridium Communications (IRDM) +145.4%, AST SpaceMobile (ASTS) -46.5%, Kt (KT) -8.8%. Over five years, AST SpaceMobile (ASTS) compounded fastest (Iridium Communications (IRDM) +2.2%/yr, AST SpaceMobile (ASTS) +29.6%/yr, Kt (KT) +5.2%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Iridium Communications (IRDM) 0.01%, AST SpaceMobile (ASTS) 0.00%, Kt (KT) 0.00%. AST SpaceMobile (ASTS) and Kt (KT) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Kt (KT) has been the steadiest (Iridium Communications (IRDM) 59.0%, AST SpaceMobile (ASTS) 108.0%, Kt (KT) 22.9%). Volatility measures how widely the price swings, not the risk of the business.

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

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Kt (KT) 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.