Comcast Corporation (CMCSA) vs Roku, Inc. (ROKU)

A side-by-side comparison of Comcast Corporation and Roku, 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.

Compare

Total returnCMCSA vs ROKU

growth of $100 · dividends reinvested · last 9y
CMCSA -11.8% (-1.4%/yr)ROKU +550.6% (+23.1%/yr)ROKU compounded faster over this window
Log scale — wide-divergence pair
101001k10kStart $1002019202120232025$88$651
CMCSA ROKU

CMCSA vs ROKU: by the numbers

  • CMCSA is the larger company ($89.43B vs $22.98B market cap).
  • CMCSA trades at the lower trailing earnings multiple (8.16 vs 66.21 P/E), one valuation lens rather than an overall verdict.
  • CMCSA converts more revenue to profit (8.97% vs 6.82% net margin).
  • ROKU grew revenue faster over the past five years (17.55% vs 2.76% CAGR).
  • CMCSA pays a dividend (5.24% yield), while ROKU has no payments in the available dividend history.

Metrics side by side

Valuation

MetricCMCSAROKU
P/E ratio8.1666.21
Forward P/E7.1955.57
P/S ratio0.724.41
P/B ratio1.008.14
EV / EBITDA5.0539.48
FCF yield22.86%3.59%

Profitability

MetricCMCSAROKU
Gross margin69.39%45.50%
Operating margin14.66%5.25%
Net margin8.97%6.82%
ROE12.48%12.58%
ROIC6.12%7.56%

Dividends

MetricCMCSAROKU
Dividend yield5.24%N/A
Payout ratio42.72%N/A

Growth (annualized)

MetricCMCSAROKU
Revenue CAGR (5Y)2.76%17.55%
EPS CAGR (5Y)18.66%N/A
FCF CAGR (5Y)8.05%35.49%
Total return CAGR (5Y)-13.07%-14.70%

Frequently asked

Which has the lower trailing P/E, CMCSA or ROKU?
CMCSA has the lower trailing P/E: CMCSA trades at 8.16 and ROKU at 66.21. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, CMCSA or ROKU?
Over the past five years, ROKU grew revenue faster — CMCSA at a 2.76% CAGR versus ROKU at 17.55%.
Does CMCSA or ROKU pay a bigger dividend?
CMCSA pays a dividend (5.24% yield), while ROKU has no payments in the available dividend history.
Is CMCSA or ROKU more profitable?
CMCSA runs the higher net margin — CMCSA at 8.97% versus ROKU at 6.82%.
How have CMCSA and ROKU total returns compared?
Over the past 5 years, CMCSA delivered -13.07% and ROKU delivered -14.70% annualized total return. Past performance doesn't predict future results.

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.