Net margin is calculated as Net Income divided by its Revenue. Owens-Corning's Net Income for the
three
months ended in Mar. 2026 was $-105 Mil. Owens-Corning's Revenue for the
three
months ended in Mar. 2026 was $2,265 Mil. Therefore, Owens-Corning's net margin for the quarter that ended in Mar. 2026 was -4.64%.
The historical rank and industry rank for Owens-Corning's Net Margin % or its related term are showing as below:
OC'
s Net Margin % Range Over the Past 10 Years
Min: -5.43 Med: 6.75 Max: 14.29
Current: -5.43
OC's Net Margin % is ranked worse than 82.67% of 1766
companies
in the Construction industry
Industry Median: 3.92
vs OC: -5.43
Owens-Corning (NYSE:OC) Net Margin % Explanation
Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.
But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.
Owens-Corning Net Margin % Related Terms
Owens-Corning Net Margin % Historical Data
* Premium members only.
The historical data trend for Owens-Corning's Net 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.
For the Building Products & Equipment subindustry, Owens-Corning's Net Margin %, along with its competitors' market caps and Net 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.
Owens-Corning Net Margin % vs Construction Industry
For the Construction industry and Industrials sector, Owens-Corning's Net Margin % distribution charts can be found below:
* The bar in red indicates where Owens-Corning's Net Margin % falls into.
* 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.
Owens-Corning (OC) has a Net Margin % of -4.64% as of Mar. 2026. Net margin is the ratio of total net income to net sales. View historical data on Owens-Corning and its competitors. According to the industry distribution chart, Owens-Corning ranks #1460 out of 1766 companies in the Construction industry, placing it in the top 82.7%.
Is Owens-Corning's Net Margin % too high?
Owens-Corning's current Net Margin % is -4.64%. Based on the distribution chart, Owens-Corning ranks #1460 out of 1766 companies in the Construction industry, which is in the bottom quartile relative to peers. Overall, Owens-Corning has a GF Score™ of 82/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Owens-Corning's Net Margin % compare to WMS and SPXC?
According to the Construction industry distribution chart, Owens-Corning ranks #1460 out of 1766 companies for Net Margin %. This places Owens-Corning in the lower half of its industry. The industry median Net Margin % is 3.92. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Net Margin % for a Construction company?
The median Net Margin % among Construction companies is 3.92, based on 1,766 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Owens-Corning and its competitors. For the Construction industry, the median Net Margin % is 3.92 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Owens-Corning's current Net Margin % is -4.64%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Owens-Corning stock overvalued right now?
Based on GuruFocus' analysis, Owens-Corning (OC) is currently considered Modestly Undervalued. The stock's GF Value™ is $154.11, compared to a current price of $132.95 — trading 13.7% below its estimated fair value. The current Net Margin % is -4.64%. Owens-Corning's overall GF Score™ is 82/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Owens-Corning (OC), the current Net Margin % is -4.64% 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 Owens-Corning (OC) Overvalued in 2026?
Based on GuruFocus' analysis, Owens-Corning stock appears to be undervalued.
The current stock price of $132.95 is trading 13.7% below its estimated GF Value™ of $154.11.
GuruFocus considers Owens-Corning to be Modestly Undervalued.
Key valuation signals for OC:
Net Margin %: -4.64%
GF Value™: $154.11 vs. price of $132.95 (13.7% below fair value)
No single metric tells the full story. See the OC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Owens-Corning Inc is a building products company that offers roofing products and systems, insulation products (hermal and acoustical batts, loose fill insulation, spray foam insulation, wet use chopped strand, etc.), and doors and door systems. The company's reportable segments are: Roofing, Insulation, and Doors. Maximum revenue is generated from the Roofing segment, which manufactures and sells residential roofing shingles, oxidized asphalt materials, roofing components, and composite lumber mainly used in residential construction. This segment also manufactures and sells glass mat and specialty veil materials used in building and construction applications. Geographically, the company generates maximum revenue from the United States, followed by Europe, Asia-Pacific, and other markets.
82GF Score
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Net Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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