Owens-CorningOC +8.10%82 Altman Z-Score is 1.98 as of Jun. 24, 2026, which is 17% below its 10-year median of 2.38. 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 1,758 Construction companies, Owens-Corning ranks worse than 59.39% on this metric.
The Altman Z-Score is a model designed to predict the likelihood of a company going bankrupt within the next two years. Created by American finance professor Edward Altman in 1968, the model is specifically designed for publicly traded manufacturing companies with assets greater than $1 million.
Warning Sign:
Altman Z-score of 1.93 is in the grey area. This implies that the company is under some kind of financial stress. If it is below 1.8, the company may face bankruptcy risk.
Owens-Corning has a Altman Z-Score of 1.98, indicating it is in Grey Zones. This implies that Owens-Corning is in some kind of financial stress. If it is below 1.81, the company may face bankrupcy risk.
The zones of discrimination were as such:
When Altman Z-Score <= 1.8, it is in Distress Zones.
When Altman Z-Score >= 3, it is in Safe Zones.
When Altman Z-Score is between 1.8 and 3, it is in Grey Zones.
The historical rank and industry rank for Owens-Corning's Altman Z-Score or its related term are showing as below:
OC'
s Altman Z-Score Range Over the Past 10 Years
Min: 1.46 Med: 2.38 Max: 3.43
Current: 1.93
During the past 13 years, Owens-Corning's highest Altman Z-Score was 3.43. The lowest was 1.46. And the median was 2.38.
X1: The Working Capital/Total Assets (WC/TA) ratio is a measure of the net liquid assets of the firm relative to the total capitalization. Working capital is defined as the difference between current assets and current liabilities. Ordinarily, a firm experiencing consistent operating losses will have shrinking current assets in relation to total assets. Altman found this one proved to be the most valuable liquidity ratio comparing with the current ratio and the quick ratio. This is however the least significant of the five factors.
X2: Retained Earnings/Total Assets: the RE/TA ratio measures the leverage of a firm. Retained earnings is the account which reports the total amount of reinvested earnings and/or losses of a firm over its entire life. Those firms with high RE, relative to TA, have financed their assets through retention of profits and have not utilized as much debt.
X3, Earnings Before Interest and Taxes/Total Assets (EBIT/TA): This ratio is a measure of the true productivity of the firm's assets, independent of any tax or leverage factors. Since a firm's ultimate existence is based on the earning power of its assets, this ratio appears to be particularly appropriate for studies dealing with corporate failure. This ratio continually outperforms other profitability measures, including cash flow.
X4, Market Value of Equity/Book Value of Total Liabilities (MVE/TL): The measure shows how much the firm's assets can decline in value (measured by market value of equity plus debt) before the liabilities exceed the assets and the firm becomes insolvent.
X5, Revenue/Total Assets (S/TA): The capital-turnover ratio is a standard financial ratio illustrating the sales generating ability of the firm's assets.
Altman Z-Score does not apply to financial companies.
Owens-Corning Altman Z-Score Related Terms
Owens-Corning Altman Z-Score Historical Data
* Premium members only.
The historical data trend for Owens-Corning's Altman Z-Score 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 Altman Z-Score, along with its competitors' market caps and Altman Z-Score 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 Altman Z-Score vs Construction Industry
For the Construction industry and Industrials sector, Owens-Corning's Altman Z-Score distribution charts can be found below:
* The bar in red indicates where Owens-Corning's Altman Z-Score falls into.
Altman Z-Score model is an accurate forecaster of failure up to two years prior to distress. It can be considered the assessment of the distress of industrial corporations.
Owens-Corning's Altman Z-Score for today is calculated with this formula:
Z
=
1.2
*
X1
+
1.4
*
X2
+
3.3
*
X3
+
0.6
*
X4
+
1.0
*
X5
=
1.2
*
0.0543
+
1.4
*
0.3279
+
3.3
*
0.0056
+
0.6
*
1.1484
+
1.0
*
0.7515
=
1.98
* 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. GuruFocus does not calculate Altman Z-Score when X4 or X5 value is 0.
Owens-Corning (OC) has a Altman Z-Score of 1.98 as of Jun. 24, 2026. The Altman Z-score measures a company's bankruptcy risk. View historical data on Owens-Corning and its competitors. This is 17% below median its historical median of 2.38. Over the past decade, Owens-Corning's Altman Z-Score has ranged from 1.46 to 3.43. According to the industry distribution chart, Owens-Corning ranks #1044 out of 1758 companies in the Construction industry, placing it in the top 59.4%.
Is Owens-Corning's Altman Z-Score too high?
Owens-Corning's current Altman Z-Score of 1.98 is 17% below median its 10-year median of 2.38. Over the past 10 years, this metric has ranged from a low of 1.46 to a high of 3.43. The Construction industry median Altman Z-Score is 2.35. Owens-Corning's value of 1.98 is 15.6% below this industry median. Based on the distribution chart, Owens-Corning ranks #1044 out of 1758 companies in the Construction industry, which is below 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 Altman Z-Score compare to WMS and SPXC?
According to the Construction industry distribution chart, Owens-Corning ranks #1044 out of 1758 companies for Altman Z-Score. This places Owens-Corning in the lower half of its industry. The industry median Altman Z-Score is 2.35. Owens-Corning's value of 1.98 is 15.6% below this benchmark. Historically, Owens-Corning's own Altman Z-Score has ranged from 1.46 to 3.43 over the past decade. While the company's 10-year median is 2.38 vs. the industry median of 2.35, Owens-Corning has consistently been below 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 Altman Z-Score for a Construction company?
The median Altman Z-Score among Construction companies is 2.35, based on 1,758 companies in the industry. Companies in the top quartile (top 25%) have a Altman Z-Score significantly above this median, while those in the bottom quartile fall well below. However, Altman Z-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Owens-Corning's current Altman Z-Score of 1.98 is 15.6% below 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 Altman Z-Score mean?
A high Altman Z-Score can signal that a stock is expensive relative to its fundamentals. The Altman Z-score measures a company's bankruptcy risk. View historical data on Owens-Corning and its competitors. For the Construction industry, the median Altman Z-Score is 2.35 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Owens-Corning's current Altman Z-Score is 1.98, which is 17% below median its own 10-year median of 2.38. 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 Altman Z-Score is 1.98, which is 17% below median its 10-year median of 2.38 and 15.6% below the Construction industry median of 2.35. 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 Altman Z-Score calculated?
Altman Z-Score is calculated from a company's financial statements. For Owens-Corning (OC), the current Altman Z-Score is 1.98 as of Jun. 24, 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:
Altman Z-Score: 1.98 (17% below median its 10-year median of 2.38)
GF Value™: $154.11 vs. price of $134.17 (12.9% below fair value)
Industry Position: 15.6% below the Construction median (#1044 of 1758)
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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