Owens-CorningOC +8.10%82 Piotroski F-Score is 4 as of Jun. 24, 2026, which is 33% below its 10-year median of 6.00. 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 1,734 Construction companies, Owens-Corning ranks worse than 65.51% on this metric.
The zones of discrimination were as such:
Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Owens-Corning has an F-score of 4 indicating the company's financial situation is typical for a stable company.
The historical rank and industry rank for Owens-Corning's Piotroski F-Score or its related term are showing as below:
OC'
s Piotroski F-Score Range Over the Past 10 Years
Min: 4 Med: 6 Max: 9
Current: 4
During the past 13 years, the highest Piotroski F-Score of Owens-Corning was 9. The lowest was 4. And the median was 6.
The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.
He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.
He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.
What he found was something that exceeded his most optimistic expectations.
Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.
Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).
Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.
Owens-Corning Piotroski F-Score Related Terms
Owens-Corning Piotroski F-Score Historical Data
* Premium members only.
The historical data trend for Owens-Corning's Piotroski F-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.
OC vs WMS, SPXC, AAON: Piotroski F-Score Comparison
For the Building Products & Equipment subindustry, Owens-Corning's Piotroski F-Score, along with its competitors' market caps and Piotroski F-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 Piotroski F-Score vs Construction Industry
For the Construction industry and Industrials sector, Owens-Corning's Piotroski F-Score distribution charts can be found below:
* The bar in red indicates where Owens-Corning's Piotroski F-Score 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.
*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.
Profitability
Question 1. Return on Assets (ROA)
Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.
Score 1 if positive, 0 if negative.
Owens-Corning's current Net Income (TTM) was -534.
==> Negative ==> Score 0.
Question 2. Cash Flow Return on Assets (CFROA)
Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.
Owens-Corning's return on assets of this year was -0.03743166. Owens-Corning's return on assets of last year was 0.02262845.
==> Last year is higher ==> Score 0.
Question 4. Quality of Earnings (Accrual)
Compare Cash flow return on assets (2) to return on assets (1)
Owens-Corning's gearing of this year was 0.37446771. Owens-Corning's gearing of last year was 0.38669155.
==> This year is lower or equal to last year. ==> Score 1.
Question 6. Change in Working Capital (Liquidity)
Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.
Score 1 if this year's current ratio is higher, 0 if it's lower
Owens-Corning's current ratio of this year was 1.23605578. Owens-Corning's current ratio of last year was 1.44264706.
==> Last year's current ratio is higher ==> Score 0.
Question 7. Change in Shares in Issue
Compare the number of shares in issue this year, to the number in issue last year.
Score 0 if there is larger number of shares in issue this year, 1 otherwise.
Owens-Corning's number of shares in issue this year was 81.1. Owens-Corning's number of shares in issue last year was 86.3.
==> There is smaller number of shares in issue this year, or the same. ==> Score 1.
Efficiency
Question 8. Change in Gross Margin
Compare this year's gross margin (Gross Profit divided by sales) to last year's.
Score 1 if this year's gross margin is higher, 0 if it's lower.
Owens-Corning's gross margin of this year was 0.26661923. Owens-Corning's gross margin of last year was 0.30277885.
==> Last year's gross margin is higher ==> Score 0.
Question 9. Change in asset turnover
Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.
Score 1 if this year's asset turnover ratio is higher, 0 if it's lower
Owens-Corning's asset turnover of this year was 0.68961166. Owens-Corning's asset turnover of last year was 0.91969119.
==> Last year's asset turnover is higher ==> Score 0.
Evaluation
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Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3
Owens-Corning has an F-score of 4 indicating the company's financial situation is typical for a stable company.
Owens-Corning (OC) has a Piotroski F-Score of 4 as of Jun. 24, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Owens-Corning and its competitors. This is 33% below median its historical median of 6.00. Over the past decade, Owens-Corning's Piotroski F-Score has ranged from 4.00 to 9.00. According to the industry distribution chart, Owens-Corning ranks #1136 out of 1734 companies in the Construction industry, placing it in the top 65.5%.
Is Owens-Corning's Piotroski F-Score too high?
Owens-Corning's current Piotroski F-Score of 4 is 33% below median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 4.00 to a high of 9.00. The Construction industry median Piotroski F-Score is 5.00. Owens-Corning's value of 4 is 20% below this industry median. Based on the distribution chart, Owens-Corning ranks #1136 out of 1734 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 Piotroski F-Score compare to WMS and SPXC?
According to the Construction industry distribution chart, Owens-Corning ranks #1136 out of 1734 companies for Piotroski F-Score. This places Owens-Corning in the lower half of its industry. The industry median Piotroski F-Score is 5.00. Owens-Corning's value of 4 is 20% below this benchmark. Historically, Owens-Corning's own Piotroski F-Score has ranged from 4.00 to 9.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, 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 Piotroski F-Score for a Construction company?
The median Piotroski F-Score among Construction companies is 5.00, based on 1,734 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Owens-Corning's current Piotroski F-Score of 4 is 20% 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Owens-Corning and its competitors. For the Construction industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Owens-Corning's current Piotroski F-Score is 4, which is 33% below median its own 10-year median of 6.00. 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 Piotroski F-Score is 4, which is 33% below median its 10-year median of 6.00 and 20% below the Construction industry median of 5.00. 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 Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Owens-Corning (OC), the current Piotroski F-Score is 4 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:
Piotroski F-Score: 4 (33% below median its 10-year median of 6.00)
GF Value™: $154.11 vs. price of $134.17 (12.9% below fair value)
Industry Position: 20% below the Construction median (#1136 of 1734)
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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Piotroski F-Score is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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