Owens-CorningOC +8.10%82 Gross Margin % is 22.52% as of Mar. 2026, which is 11% below its 10-year median of 25.34. GuruFocus rates OC with a GF Score™ of 82/100 and a GF Value™ of $154.11 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 1,723 Construction companies, Owens-Corning ranks better than 62.57% on this metric.
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
Owens-Corning had a gross margin of 22.52% for the quarter that ended in Mar. 2026 => Competition eroding margins
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
Owens-Corning Gross Margin % Related Terms
Owens-Corning Gross Margin % Historical Data
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The historical data trend for Owens-Corning's Gross 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 Gross Margin %, along with its competitors' market caps and Gross 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 Gross Margin % vs Construction Industry
For the Construction industry and Industrials sector, Owens-Corning's Gross Margin % distribution charts can be found below:
* The bar in red indicates where Owens-Corning's Gross 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
Owens-Corning (OC) has a Gross Margin % of 22.52% as of Mar. 2026. Gross margin is the ratio of total gross profit to net sales. View historical data on Owens-Corning and its competitors. This is 11% below median its historical median of 25.34. Over the past decade, Owens-Corning's Gross Margin % has ranged from 22.47 to 30.87. According to the industry distribution chart, Owens-Corning ranks #645 out of 1723 companies in the Construction industry, placing it in the top 37.4%.
Is Owens-Corning's Gross Margin % too high?
Owens-Corning's current Gross Margin % of 22.52% is 11% below median its 10-year median of 25.34. Over the past 10 years, this metric has ranged from a low of 22.47 to a high of 30.87. The Construction industry median Gross Margin % is 20.70. Owens-Corning's value of 22.52% is 8.8% above this industry median. Based on the distribution chart, Owens-Corning ranks #645 out of 1723 companies in the Construction industry, which is above the industry midpoint. 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 Gross Margin % compare to WMS and SPXC?
According to the Construction industry distribution chart, Owens-Corning ranks #645 out of 1723 companies for Gross Margin %. This puts Owens-Corning in the upper half of its industry. The industry median Gross Margin % is 20.70. Owens-Corning's value of 22.52% is 8.8% above this benchmark. Historically, Owens-Corning's own Gross Margin % has ranged from 22.47 to 30.87 over the past decade. While the company's 10-year median is 25.34 vs. the industry median of 20.70, Owens-Corning 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 Gross Margin % for a Construction company?
The median Gross Margin % among Construction companies is 20.70, based on 1,723 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Owens-Corning's current Gross Margin % of 22.52% is 8.8% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Owens-Corning and its competitors. For the Construction industry, the median Gross Margin % is 20.70 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Owens-Corning's current Gross Margin % is 22.52%, which is 11% below median its own 10-year median of 25.34. 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 $134.17 — trading 12.9% below its estimated fair value. The current Gross Margin % is 22.52%, which is 11% below median its 10-year median of 25.34 and 8.8% above the Construction industry median of 20.70. 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 Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Owens-Corning (OC), the current Gross Margin % is 22.52% 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 $134.17 is trading 12.9% below its estimated GF Value™ of $154.11.
GuruFocus considers Owens-Corning to be Modestly Undervalued.
Key valuation signals for OC:
Gross Margin %: 22.52% (11% below median its 10-year median of 25.34)
GF Value™: $154.11 vs. price of $134.17 (12.9% below fair value)
Industry Position: 8.8% above the Construction median (#645 of 1723)
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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