Comcast Corp. (CMCSA)

About Comcast Corp.

Comcast is a global media and technology company that provides broadband, wireless, video, and voice services primarily under the Xfinity, Comcast Business, Sky, and NOW brands. It serves residential and business customers in the United States, United Kingdom, and Italy with internet, video, and voice services, and also produces and distributes entertainment, sports, and news content through brands like NBC, Telemundo, Universal, Peacock, and Sky. Additionally, Comcast owns and operates Universal theme parks in the United States and Asia.

Snapshot

Fundamentals are from SEC filings for FY2025, the latest annual period (ended December 31, 2025). P/E and market cap are derived from stored market prices, last retrieved on a rolling basis and typically within the past week.

Peer comparison

Where Comcast’s fundamentals sit among the 213 Communication Services companies. Each figure is ranked only against peers that report it, from lowest (left) to highest (right).

Comcast’s net margin of 16.2% ranks in the 92nd percentile of the 189 Communication Services companies reporting it. Comcast’s P/E of 7.2 ranks in the 8th percentile of the 79 peers with a meaningful P/E. Comcast’s return on equity of 20.6% ranks in the 86th percentile of the 162 Communication Services companies reporting it.

No reported insider transactions (codes P/S) in the last 90 days. For context, about 15% of companies in the universe saw any reported insider purchase (code P) in the same window. Browse insider activity →

Percentiles describe where a figure sits among sector peers reporting it (100th = highest). They are position within a peer group, not a rating, and not investment advice. Short interest ranking uses days to cover from FINRA Consolidated Short Interest data; FINRA is the owner and source of that data, included at no additional charge.

Institutional ownership

Held by 8 of the superinvestors we track (plus 6 quant / multi-strat books), based on each investor’s most recent 13F; periods vary by investor (newest: Q2 2026).

No longer held by: Renaissance Technologies (as of Q2 2026), Soros Fund Management (as of Q2 2026)

From quarterly Form 13F filings, which can be up to 45 days delayed. Long US-listed positions only: excludes short positions, options, cash, bonds, and non-US holdings, so this is not a manager’s complete portfolio. Counts are of the investors we track, not all institutions. Not investment advice.

Short interest

Total shares sold short as of each twice-monthly FINRA settlement. Rising short interest means more investors are positioned against the stock; days to cover estimates how many trading days of average volume that position represents.

Source: FINRA Consolidated Short Interest. FINRA is the owner and source of the FINRA-supplied data, which is included at no additional charge for your own personal or professional use; republishing or redistributing it is not permitted. Settlement dates are shown; FINRA publishes each settlement about nine business days later, so the latest figure can be two to four weeks old. Not presented as a percentage of float. No FINRA endorsement of this product is implied. Not investment advice.

Quarterly trend

Latest 8 quarters, from company XBRL filings on SEC EDGAR. A dotted underline marks a fourth-quarter figure we calculated from the full year and the first nine months. Revenue YoY is our calculation too: each quarter against the same quarter a year earlier.

Company facts

Selected SEC filings

Largest Communication Services peers

All Communication Services companies →

CMCSA head to head