CMCSA vs ROKU
Comcast Corp (CMCSA) and Roku, Inc (ROKU) are both filed with the SEC under Cable & Other Pay Television Services. CMCSA is 4.2× ROKU's size by market cap ($98.0B against $23.6B); ROKU trades at the higher fiscal-year P/E (264.8× against 4.9×); CMCSA reports the higher net margin (16.2% against 1.9%); ROKU grew sales faster over three years (+14.9% against +0.6%); and over the past year ROKU returned +61.7% against CMCSA's -9.8%.
| CMCSA | ROKU | |
|---|---|---|
| Last close | $27.06 | $157.68 |
| Market cap | $98.0B | $23.6B |
| P/E (FY) | 4.9× | 264.8× |
| P/S | 0.8× | 5.0× |
| EV/EBITDA | 5.1× | — |
| Gross margin | — | 43.8% |
| Operating margin | 16.7% | -0.1% |
| Net margin | 16.2% | 1.9% |
| Return on equity | 21.9% | 3.4% |
| Sales growth (3y) | +0.6% | +14.9% |
| EPS growth (3y) | +64.5% | — |
| Dividend yield | 5.0% | — |
| 1-year return | -9.8% | +61.7% |
Screener snapshot — prices as of 2026-08-28. Each side's last close is the most recent session the snapshot holds for that company, which can be an earlier one, and its 1-year return is measured to that close. Market caps struck on 2026-08-27. Last close, market cap and the 1-year return are price figures; every other row is computed over the company's latest filed fiscal year — FY2025 (ended 2025-12-31) for both. — not published for this company. A ratio goes unpublished for more than one reason: a component the calculation needs is not on file, the filing does not tag the line it is read from, or the calculation is not defined on the filed basis — EV/EBITDA is not printed on non-positive EBITDA, and return on equity is not computed on a zero or negative equity base.
Who holds them, and who has traded them
| CMCSA | ROKU | |
|---|---|---|
| Institutional holders (13F) | 2,027 | 689 |
| Insider buyers − sellers (180d) | -1 | -5 |
| Congressional trades disclosed (180d) | 6 | 0 |
| Executive-branch officials on file — trades disclosed (180d) | 10 | 0 |
Counts only. The congressional figures count transactions dated in the trailing 180 days and disclosed in STOCK Act periodic transaction reports; amounts are filed as ranges and are never summed. The executive-branch figures count the same window of transactions, and they are scoped to one roster. The officials OGE posts for direct download. Insider buyers − sellers counts distinct people filing open-market Form 4 purchases minus distinct people filing open-market sales over the trailing 180 days, capped at ±5.
CMCSA vs ROKU: common questions
- Is CMCSA bigger than ROKU?
- CMCSA carries the larger market cap — $98.0B against $23.6B, both struck on 2026-08-27.
- Which trades at a higher P/E, CMCSA or ROKU?
- ROKU, at a fiscal-year 264.8× against 4.9× for CMCSA. Both are price ÷ latest full-year diluted earnings per share, not a trailing-twelve-month P/E.
- How have CMCSA and ROKU performed over the past year?
- ROKU returned +61.7% and CMCSA -9.8%, measured on the trailing calendar year to the last close.
- How many institutions hold CMCSA and ROKU?
- 2,027 13F filers report a position in CMCSA and 689 in ROKU, on the latest quarter in the panel.
- Are CMCSA and ROKU in the same industry?
- Both are filed with the SEC under Cable & Other Pay Television Services, which is the classification this pairing is built on.
CMCSA overview → · ROKU overview → · CMCSA institutional ownership → · ROKU institutional ownership → · Congress and CMCSA → · Executive branch and CMCSA →
More in Cable & Other Pay Television Services: CHTR vs CMCSA · CHTR vs ROKU · CHTR vs WBD · CMCSA vs WBD
Stock comparisons lists every pair this site publishes.
Source: SPZCO — https://spzco.com/vs/cmcsa-vs-roku