Which has the lower trailing P/E, CMCSA or IRDM?

CMCSA has the lower trailing P/E: CMCSA trades at 8.15 and IRDM at 53.44. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, CMCSA or IRDM?

Over the past five years, IRDM grew revenue faster — CMCSA at a 2.76% CAGR versus IRDM at 8.27%.

Does CMCSA or IRDM pay a bigger dividend?

CMCSA yields 5.24% and IRDM yields 1.28% based on trailing dividends and the latest price.

Is CMCSA or IRDM more profitable?

IRDM runs the higher net margin — CMCSA at 8.97% versus IRDM at 10.55%.

How have CMCSA and IRDM total returns compared?

Over the past 10 years, CMCSA delivered -0.09% and IRDM delivered 21.88% annualized total return. Past performance doesn't predict future results.

Comcast Corporation (CMCSA) vs Iridium Communications Inc. (IRDM)

A side-by-side comparison of Comcast Corporation and Iridium Communications Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 11, 2026. Differences are shown without an overall score or investment verdict.

CMCSA

Comcast Corporation

$89.32B

$25.17Communication ServicesDelayed quote: Sep 10, 2026, 4:00 PM EDT

IRDM

Iridium Communications Inc.

$4.98B

$47.03Communication ServicesDelayed quote: Sep 10, 2026, 4:00 PM EDT

Total return — CMCSA vs IRDM

growth of $100 · dividends reinvested · last 10y

CMCSA -2.8% (-0.3%/yr)IRDM +585.3% (+21.2%/yr)IRDM compounded faster over this window

Log scale — wide-divergence pair

CMCSA IRDM

CMCSA vs IRDM: by the numbers

•CMCSA is the larger company ($89.32B vs $4.98B market cap).
•CMCSA trades at the lower trailing earnings multiple (8.15 vs 53.44 P/E), one valuation lens rather than an overall verdict.
•IRDM converts more revenue to profit (10.55% vs 8.97% net margin).
•IRDM grew revenue faster over the past five years (8.27% vs 2.76% CAGR).
•CMCSA pays the higher dividend yield (5.24% vs 1.28%).

Metrics side by side

Valuation

Metric	CMCSA	IRDM
P/E ratio	8.15	53.44
Forward P/E	7.18	49.44
P/S ratio	0.72	5.64
P/B ratio	0.99	10.55
EV / EBITDA	5.05	15.50
FCF yield	22.89%	5.79%

Profitability

Metric	CMCSA	IRDM
Gross margin	69.39%	70.39%
Operating margin	14.66%	23.76%
Net margin	8.97%	10.55%
ROE	12.48%	19.74%
ROIC	6.12%	6.43%

Dividends

Metric	CMCSA	IRDM
Dividend yield	5.24%	1.28%
Payout ratio	42.72%	68.18%

Growth (annualized)

Metric	CMCSA	IRDM
Revenue CAGR (5Y)	2.76%	8.27%
EPS CAGR (5Y)	18.66%	N/A
FCF CAGR (5Y)	8.05%	4.45%
Total return CAGR (5Y)	-13.07%	1.22%

Frequently asked

Which has the lower trailing P/E, CMCSA or IRDM?: CMCSA has the lower trailing P/E: CMCSA trades at 8.15 and IRDM at 53.44. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, CMCSA or IRDM?: Over the past five years, IRDM grew revenue faster — CMCSA at a 2.76% CAGR versus IRDM at 8.27%.
Does CMCSA or IRDM pay a bigger dividend?: CMCSA yields 5.24% and IRDM yields 1.28% based on trailing dividends and the latest price.
Is CMCSA or IRDM more profitable?: IRDM runs the higher net margin — CMCSA at 8.97% versus IRDM at 10.55%.
How have CMCSA and IRDM total returns compared?: Over the past 10 years, CMCSA delivered -0.09% and IRDM delivered 21.88% annualized total return. Past performance doesn't predict future results.

Go deeper

Full CMCSA analysis Full IRDM analysis Interactive comparison tool

Dig into the metrics

Comcast P/E ratio Iridium Communications P/E ratio Comcast dividend yield Iridium Communications dividend yield Comcast ROE Iridium Communications ROE Comcast operating margin Iridium Communications operating margin Comcast revenue growth Iridium Communications revenue growth Comcast free cash flow Iridium Communications free cash flow

Comcast & Iridium Communications appear in these rankings

Highest Dividend Yield Stocks Highest FCF Yield Stocks Highest 10-Year Total Return Stocks Lowest P/E Ratio Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified September 11, 2026.