Owens-CorningOC +0.32%81 Days Inventory is 77.06 as of Mar. 2026, which is 21% above its 10-year median of 63.82. GuruFocus rates OC with a GF Score™ of 81/100 and a GF Value™ of $154.26 (Fairly Valued). The stock has 6 warning signs investors should review. Among 1,480 Construction companies, Owens-Corning ranks worse than 59.53% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Owens-Corning's Average Total Inventories for the
three
months ended in Mar. 2026 was $1,482 Mil. Owens-Corning's Cost of Goods Sold for the
three
months ended in Mar. 2026 was $1,755 Mil.
Hence, Owens-Corning's Days Inventory for the
three
months ended in Mar. 2026 was 77.06.
The historical rank and industry rank for Owens-Corning's Days Inventory or its related term are showing as below:
OC'
s Days Inventory Range Over the Past 10 Years
Min: 56.17 Med: 63.82 Max: 77.77
Current: 73.38
During the past 13 years, Owens-Corning's highest Days Inventory was 77.77. The lowest was 56.17. And the median was 63.82.
OC's Days Inventory is ranked worse than 59.53% of 1480
companies
in the Construction industry
Industry Median: 49.85
vs OC: 73.38
Owens-Corning's Days Inventory
increased
from Mar. 2025 (69.11) to Mar. 2026 (77.06).
It might indicate that Owens-Corning's sales slowed down.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Owens-Corning's Inventory Turnover for the
three
months ended in Mar. 2026 was 1.18.
Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Owens-Corning's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.65.
Owens-Corning (NYSE:OC) Days Inventory Explanation
Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:
1. Inventory Turnover measures how fast the company turns over its inventory within a year.
Owens-Corning's Inventory Turnover for the
three
months ended in Mar. 2026 is calculated as
2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
Owens-Corning's Inventory to Revenue for the
three
months ended in Mar. 2026 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.
Be Aware
A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.
Owens-Corning Days Inventory Related Terms
Owens-Corning Days Inventory Historical Data
* Premium members only.
The historical data trend for Owens-Corning's Days Inventory 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 Days Inventory, along with its competitors' market caps and Days Inventory 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 Days Inventory vs Construction Industry
For the Construction industry and Industrials sector, Owens-Corning's Days Inventory distribution charts can be found below:
* The bar in red indicates where Owens-Corning's Days Inventory 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 Days Inventory of 77.06 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Owens-Corning and its competitors. This is 21% above median its historical median of 63.82. Over the past decade, Owens-Corning's Days Inventory has ranged from 56.17 to 77.77. According to the industry distribution chart, Owens-Corning ranks #881 out of 1480 companies in the Construction industry, placing it in the top 59.5%.
Is Owens-Corning's Days Inventory too high?
Owens-Corning's current Days Inventory of 77.06 is 21% above median its 10-year median of 63.82. Over the past 10 years, this metric has ranged from a low of 56.17 to a high of 77.77. The Construction industry median Days Inventory is 49.85. Owens-Corning's value of 77.06 is 54.6% above this industry median. Based on the distribution chart, Owens-Corning ranks #881 out of 1480 companies in the Construction industry, which is below the industry midpoint. Overall, Owens-Corning has a GF Score™ of 81/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Owens-Corning's Days Inventory compare to AAON and SPXC?
According to the Construction industry distribution chart, Owens-Corning ranks #881 out of 1480 companies for Days Inventory. This places Owens-Corning in the lower half of its industry. The industry median Days Inventory is 49.85. Owens-Corning's value of 77.06 is 54.6% above this benchmark. Historically, Owens-Corning's own Days Inventory has ranged from 56.17 to 77.77 over the past decade. While the company's 10-year median is 63.82 vs. the industry median of 49.85, 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 Days Inventory for a Construction company?
The median Days Inventory among Construction companies is 49.85, based on 1,480 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Owens-Corning's current Days Inventory of 77.06 is 54.6% 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 Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Owens-Corning and its competitors. For the Construction industry, the median Days Inventory is 49.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Owens-Corning's current Days Inventory is 77.06, which is 21% above median its own 10-year median of 63.82. 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 Fairly Valued. The stock's GF Value™ is $154.26, compared to a current price of $151.06 — trading 2.1% below its estimated fair value. The current Days Inventory is 77.06, which is 21% above median its 10-year median of 63.82 and 54.6% above the Construction industry median of 49.85. Owens-Corning's overall GF Score™ is 81/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For Owens-Corning (OC), the current Days Inventory is 77.06 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 $151.06 is trading 2.1% below its estimated GF Value™ of $154.26.
GuruFocus considers Owens-Corning to be Fairly Valued.
Key valuation signals for OC:
Days Inventory: 77.06 (21% above median its 10-year median of 63.82)
GF Value™: $154.26 vs. price of $151.06 (2.1% below fair value)
Industry Position: 54.6% above the Construction median (#881 of 1480)
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.
81GF Score
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