Stock research

Comcast Corporation (CMCSA) Stock Research

Comcast is a major US cable and broadband provider that also owns NBCUniversal and the Peacock streaming platform.

For the fiscal year ended December 31, 2025, Comcast Corporation reported revenue of $123.7B and net income of $20.0B, with operating cash flow of $33.6B. Source: Form 10-K filed February 3, 2026

SEC data as of

Revenue
$123.7B
FY ending 2025-12-31
Net income
$20.0B
FY ending 2025-12-31
Diluted EPS
$5.39
Net margin
16.2%

Reported SEC XBRL figures. Each metric’s period and original filing are listed below.

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About Comcast

Its business blends connectivity subscriptions with media, film, and theme-park operations.

Exchange
NASDAQ: CMCSA
Sector
Communication Services
SEC industry
Cable & Other Pay Television Services (SIC 4841)
Fiscal year end
December 31
Headquarters
Philadelphia, Pennsylvania
Founded
1963

CMCSA key financials

Reported figures from Comcast Corporation's filings, pulled directly from SEC XBRL data rather than a third-party terminal. Each row links to the filing it came from.

MetricValuePeriodSource
Revenue$123.7B2025-01-01 – 2025-12-31SEC filing
Net income$20.0B2025-01-01 – 2025-12-31SEC filing
Operating cash flow$33.6B2025-01-01 – 2025-12-31SEC filing
Diluted EPS$5.392025-01-01 – 2025-12-31SEC filing
Net margin16.2%2025-01-01 – 2025-12-31SEC filing

Values are as tagged by the issuer in XBRL. Revenue for banks and insurers is net of interest expense where that is the reported line. Fiscal years that do not follow the calendar are shown by their period-end date. No price, market cap, or valuation multiple is shown because Yield Theory does not republish unlicensed market data.

Diluted EPS is the earnings figure behind the price-to-earnings ratio; the P/E multiple compression calculator shows how a change in that multiple moves a share price.

What investors should watch in CMCSA

Comcast Corporation sits in Communication Services. Internet platforms, media, gaming, and telecom — advertising-driven mega-caps sitting alongside capital-intensive carriers. We have not yet written company-specific drivers for CMCSA; the forces that matter most for the sector are:

  • ◆Digital advertising budgets and the ad cycle
  • ◆Streaming economics and content spend
  • ◆AI's effect on search and content distribution
  • ◆Antitrust and platform regulation

Key questions for the CMCSA thesis

Each question starts with what the filings show, then why it matters. None of these is a rating or a forecast.

Does CMCSA's reported profit turn into cash?

Operating cash flow was $33.6B, 1.68 times net income of $20.0B, for the fiscal year ended December 31, 2025.

Cash from operations exceeded reported earnings. Non-cash charges such as depreciation, amortization and stock-based compensation usually explain the gap; the cash-flow statement shows which.

Form 10-K filed February 3, 2026

How much of CMCSA's revenue is left as profit?

Net income was 16.2% of revenue for the fiscal year ended December 31, 2025, based on revenue and net income reported for the same period.

Net margin reflects the business model as much as execution, so compare it with companies in the same SEC industry and read the income statement for one-time items before treating it as a run rate.

Form 10-K filed February 3, 2026

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Congressional trading in CMCSA

PoliticianTrade dateTypeOwnerAmountSource
Kevin Hern2026-08-05SaleJoint$1,001 - $15,000Filing #20035134
Gilbert Cisneros2026-07-17SaleSelf$1,001 - $15,000Filing #20035190
Gilbert Cisneros2026-06-16PurchaseSelf$1,001 - $15,000Filing #20034906
Mike Kelly2026-05-07SaleSpouse$1,001 - $15,000Filing #20034767
Gilbert Cisneros2026-04-14SaleSelf$15,001 - $50,000Filing #20034500
Alan Armstrong2026-03-27PurchaseSelf$1,001 - $15,000Filing #fda235b3-bad7-4637-8fa1-053f354d929c
Kevin Hern2026-03-17SaleJoint$15,001 - $50,000Filing #20034262
Gilbert Cisneros2026-01-09PurchaseSelf$1,001 - $15,000Filing #20033983
Angus King2025-12-29SaleSpouse$1,001 - $15,000Filing #d7cae837-f73c-4eb1-b9fb-e510f53d65de
Julie Johnson2025-12-18SaleJoint$1,001 - $15,000Filing #20033789

All verified CMCSA congressional disclosures

Congressional disclosures are delayed, range-based records—not real-time signals or proof of motive. See the source-linked tracker for scope and limitations.

CMCSA — frequently asked questions

What does Comcast Corporation do?

Comcast is a major US cable and broadband provider that also owns NBCUniversal and the Peacock streaming platform.

What were CMCSA's latest reported annual revenue and net income?

For the fiscal year ended December 31, 2025, Comcast Corporation reported revenue of $123.7B and net income of $20.0B, with operating cash flow of $33.6B. The figures come from Comcast Corporation's SEC XBRL filings.

When does Comcast Corporation's fiscal year end?

The SEC lists Comcast Corporation's fiscal year end as December 31.

Do members of Congress trade CMCSA?

The current verified House and Senate snapshot contains 32 transaction rows for CMCSA, each linked to the original filing.

Where is Comcast Corporation headquartered?

Comcast Corporation is headquartered in Philadelphia, Pennsylvania and was founded in 1963.

Is CMCSA a good investment?

This page does not rate CMCSA as a buy or sell. It sets out what Comcast Corporation reports, what investors should watch and the questions a thesis has to answer, with links to the SEC filings. It is research, not investment advice.

This page is independent research and educational information, not investment advice or a recommendation to buy or sell any security. Company facts are compiled from public sources. Do your own research.

What do the CMCSA numbers leave unanswered?

Financials describe the business. The next question is which assumptions an investment thesis depends on. Explore the member reports below for analysis of catalysts, risks, and what would change the view. $39/month or $249/year.

$39/mo or $249/yr · cancel future renewals anytime · sources included