ComcastWBO:CMCS +2.09%56 Operating Margin % is 13.14% as of Mar. 2026, which is 31% below its 10-year median of 19.01. GuruFocus rates WBO:CMCS with a GF Score™ of 56/100 and a GF Value™ of €36.11 (Possible Value Trap). The stock has 2 warning signs investors should review. Among 367 Telecommunication Services companies, Comcast ranks better than 64.85% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. Comcast's Operating Income for the
three
months ended in Mar. 2026 was €3,577 Mil. Comcast's Revenue for the
three
months ended in Mar. 2026 was €27,210 Mil. Therefore, Comcast's Operating Margin % for the quarter that ended in Mar. 2026 was 13.14%.
Good Sign:
Comcast Corp operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Comcast's Operating Margin % or its related term are showing as below:
WBO:CMCS'
s Operating Margin % Range Over the Past 10 Years
Min: 15.28 Med: 19.01 Max: 21.19
Current: 15.28
WBO:CMCS's Operating Margin % is ranked better than 64.85% of 367
companies
in the Telecommunication Services industry
Industry Median: 9.73
vs WBO:CMCS: 15.28
Comcast's 5-Year Average Operating Margin % Growth Rate was 0.40% per year.
Comcast's Operating Income for the
three
months ended in Mar. 2026 was €3,577 Mil.
Its Operating Income for the trailing twelve months (TTM) ended in Mar. 2026 was €16,464 Mil.
Comcast (WBO:CMCS) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
Comcast Operating Margin % Related Terms
Comcast Operating Margin % Historical Data
* Premium members only.
The historical data trend for Comcast's Operating Margin % can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
WBO:CMCS vs SATS, CHTR, TIGO: Operating Margin % Comparison
For the Telecom Services subindustry, Comcast's Operating Margin %, along with its competitors' market caps and Operating Margin % data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Comcast Operating Margin % vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Comcast's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Comcast's Operating Margin % falls into.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
Comcast's Operating Margin % for the fiscal year that ended in Dec. 2025 is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Comcast (WBO:CMCS) has a Operating Margin % of 13.14% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Comcast and its competitors. This is 31% below median its historical median of 19.01. Over the past decade, Comcast's Operating Margin % has ranged from 15.28 to 21.19. According to the industry distribution chart, Comcast ranks #129 out of 367 companies in the Telecommunication Services industry, placing it in the top 35.1%.
Is Comcast's Operating Margin % too high?
Comcast's current Operating Margin % of 13.14% is 31% below median its 10-year median of 19.01. Over the past 10 years, this metric has ranged from a low of 15.28 to a high of 21.19. The Telecommunication Services industry median Operating Margin % is 9.73. Comcast's value of 13.14% is 35% above this industry median. Based on the distribution chart, Comcast ranks #129 out of 367 companies in the Telecommunication Services industry, which is above the industry midpoint. Overall, Comcast has a GF Score™ of 56/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Comcast's Operating Margin % compare to SATS and CHTR?
According to the Telecommunication Services industry distribution chart, Comcast ranks #129 out of 367 companies for Operating Margin %. This puts Comcast in the upper half of its industry. The industry median Operating Margin % is 9.73. Comcast's value of 13.14% is 35% above this benchmark. Historically, Comcast's own Operating Margin % has ranged from 15.28 to 21.19 over the past decade. While the company's 10-year median is 19.01 vs. the industry median of 9.73, Comcast has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Operating Margin % for a Telecommunication Services company?
The median Operating Margin % among Telecommunication Services companies is 9.73, based on 367 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Comcast's current Operating Margin % of 13.14% is 35% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on Comcast and its competitors. For the Telecommunication Services industry, the median Operating Margin % is 9.73 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Comcast's current Operating Margin % is 13.14%, which is 31% below median its own 10-year median of 19.01. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Comcast stock overvalued right now?
Based on GuruFocus' analysis, Comcast (WBO:CMCS) is currently considered Possible Value Trap. The stock's GF Value™ is €36.11, compared to a current price of €20.03 — trading 44.5% below its estimated fair value. The current Operating Margin % is 13.14%, which is 31% below median its 10-year median of 19.01 and 35% above the Telecommunication Services industry median of 9.73. Comcast's overall GF Score™ is 56/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For Comcast (WBO:CMCS), the current Operating Margin % is 13.14% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Comcast (WBO:CMCS) Overvalued in 2026?
Based on GuruFocus' analysis, Comcast stock appears to be undervalued.
The current stock price of €20.03 is trading 44.5% below its estimated GF Value™ of €36.11.
GuruFocus considers Comcast to be Possible Value Trap.
Key valuation signals for WBO:CMCS:
Operating Margin %: 13.14% (31% below median its 10-year median of 19.01)
GF Value™: €36.11 vs. price of €20.03 (44.5% below fair value)
Industry Position: 35% above the Telecommunication Services median (#129 of 367)
No single metric tells the full story. See the WBO:CMCS stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Comcast is made up of three parts. The core cable business owns networks that provide television, internet access, and phone services to 65 million US homes and businesses, or nearly half of the country. The firm provides services to about half the locations in this territory. Comcast acquired NBCUniversal from General Electric in 2011. Following the spinoff of several cable networks, including CNBC, MSNBC, and USA, NBCU now consists of the NBC network, several local NBC affiliates, Bravo, the Peacock streaming platform, Universal Studios, and several theme parks. Finally, Sky, acquired in 2018, is a large television provider in the UK and Italy.
56GF Score
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