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C.S.Lumber CoTSE:7808 -1.35%61 Operating Margin % is 3.03% as of Feb. 2026, which is 61% below its 10-year median of 7.73. GuruFocus rates TSE:7808 with a GF Score™ of 61/100 and a GF Value™ of 円3,000.42 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 282 Forest Products companies, C.S.Lumber Co ranks better than 69.15% on this metric.
Operating Margin % is calculated as Operating Income divided by its Revenue. C.S.Lumber Co's Operating Income for the
three
months ended in Feb. 2026 was 円149 Mil. C.S.Lumber Co's Revenue for the
three
months ended in Feb. 2026 was 円4,918 Mil. Therefore, C.S.Lumber Co's Operating Margin % for the quarter that ended in Feb. 2026 was 3.03%.
Warning Sign:
C.S.Lumber Co Inc operating margin has been in a 5-year decline. The average rate of decline per year is -11.7%.
The historical rank and industry rank for C.S.Lumber Co's Operating Margin % or its related term are showing as below:
TSE:7808'
s Operating Margin % Range Over the Past 10 Years
Min: 4.07 Med: 7.73 Max: 16.17
Current: 5.57
TSE:7808's Operating Margin % is ranked better than 69.15% of 282
companies
in the Forest Products industry
Industry Median: 2.595
vs TSE:7808: 5.57
C.S.Lumber Co's 5-Year Average Operating Margin % Growth Rate was -11.70% per year.
C.S.Lumber Co (TSE:7808) Operating Margin % Explanation
Just like Gross Margin %, it is important to see a company maintains its operating margin over time. Among the same industry, a company with higher operating margin is more efficient in its operation. It is also more stable during industry slowdown or recessions. Peter Lynch prefers those with higher margins than those with lower margins.
Be Aware
Operating Margin % can be manipulated by adjusting the rate of depreciation, depletion and amortization (DDA).
If a company is facing competition, its Operating Margin % may decline. Often the Operating Margin % declines well before the company's Revenue or even profit decline. Therefore, Operating Margin % is a very important indicator of whether the company is facing problems.
For instance, by 2012, Nokia (NOK)'s problems were well known and its stock had lost more than 90% of its market value since 2007. But Nokias Operating Margin % had already been in decline since 2002, although its Earnings per Share (Diluted) were still rising. Investors who paid attention to Operating Margin % would have avoided this huge loss. The same can be said for Research-in-Motion (RIMM).
Therefore, Operating Margin % is a very important screening filter for GuruFocus. GuruFocus's Buffett-Munger screener requires that the profit margin is either consistent or expanding. The Model Portfolio of the Buffett-Munger screener has outperformed the market every year since inception in 2009.
C.S.Lumber Co Operating Margin % Related Terms
C.S.Lumber Co Operating Margin % Historical Data
* Premium members only.
The historical data trend for C.S.Lumber Co's Operating 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.
TSE:7808 vs SSD, UFPI, BCC: Operating Margin % Comparison
For the Lumber & Wood Production subindustry, C.S.Lumber Co's Operating Margin %, along with its competitors' market caps and Operating 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.
C.S.Lumber Co Operating Margin % vs Forest Products Industry
For the Forest Products industry and Basic Materials sector, C.S.Lumber Co's Operating Margin % distribution charts can be found below:
* The bar in red indicates where C.S.Lumber Co's Operating Margin % falls into.
Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.
C.S.Lumber Co's Operating Margin % for the fiscal year that ended in May. 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.
C.S.Lumber Co (TSE:7808) has a Operating Margin % of 3.03% as of Feb. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on C.S.Lumber Co and its competitors. This is 61% below median its historical median of 7.73. Over the past decade, C.S.Lumber Co's Operating Margin % has ranged from 4.07 to 16.17. According to the industry distribution chart, C.S.Lumber Co ranks #87 out of 282 companies in the Forest Products industry, placing it in the top 30.9%.
Is C.S.Lumber Co's Operating Margin % too high?
C.S.Lumber Co's current Operating Margin % of 3.03% is 61% below median its 10-year median of 7.73. Over the past 10 years, this metric has ranged from a low of 4.07 to a high of 16.17. The Forest Products industry median Operating Margin % is 2.60. C.S.Lumber Co's value of 3.03% is 16.8% above this industry median. Based on the distribution chart, C.S.Lumber Co ranks #87 out of 282 companies in the Forest Products industry, which is above the industry midpoint. Overall, C.S.Lumber Co has a GF Score™ of 61/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does C.S.Lumber Co's Operating Margin % compare to SSD and UFPI?
According to the Forest Products industry distribution chart, C.S.Lumber Co ranks #87 out of 282 companies for Operating Margin %. This puts C.S.Lumber Co in the upper half of its industry. The industry median Operating Margin % is 2.60. C.S.Lumber Co's value of 3.03% is 16.8% above this benchmark. Historically, C.S.Lumber Co's own Operating Margin % has ranged from 4.07 to 16.17 over the past decade. While the company's 10-year median is 7.73 vs. the industry median of 2.60, C.S.Lumber Co 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 Operating Margin % for a Forest Products company?
The median Operating Margin % among Forest Products companies is 2.60, based on 282 companies in the industry. Companies in the top quartile (top 25%) have a Operating Margin % significantly above this median, while those in the bottom quartile fall well below. However, Operating Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. C.S.Lumber Co's current Operating Margin % of 3.03% is 16.8% 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 Operating Margin % mean?
A high Operating Margin % can signal that a stock is expensive relative to its fundamentals. Operating margin is the ratio of total operating income to net sales. View historical data on C.S.Lumber Co and its competitors. For the Forest Products industry, the median Operating Margin % is 2.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. C.S.Lumber Co's current Operating Margin % is 3.03%, which is 61% below median its own 10-year median of 7.73. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is C.S.Lumber Co stock overvalued right now?
Based on GuruFocus' analysis, C.S.Lumber Co (TSE:7808) is currently considered Modestly Undervalued. The stock's GF Value™ is 円3,000.42, compared to a current price of 円2,695.00 — trading 10.2% below its estimated fair value. The current Operating Margin % is 3.03%, which is 61% below median its 10-year median of 7.73 and 16.8% above the Forest Products industry median of 2.60. C.S.Lumber Co's overall GF Score™ is 61/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Operating Margin % calculated?
Operating Margin % is calculated from a company's financial statements. For C.S.Lumber Co (TSE:7808), the current Operating Margin % is 3.03% as of Feb. 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 C.S.Lumber Co (TSE:7808) Overvalued in 2026?
Based on GuruFocus' analysis, C.S.Lumber Co stock appears to be undervalued.
The current stock price of 円2,695.00 is trading 10.2% below its estimated GF Value™ of 円3,000.42.
GuruFocus considers C.S.Lumber Co to be Modestly Undervalued.
Key valuation signals for TSE:7808:
Operating Margin %: 3.03% (61% below median its 10-year median of 7.73)
GF Value™: 円3,000.42 vs. price of 円2,695.00 (10.2% below fair value)
Industry Position: 16.8% above the Forest Products median (#87 of 282)
No single metric tells the full story. See the TSE:7808 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
C.S.Lumber Co Inc is a Japan-based company, engages in the pre-cutting and sale of a wood business. It is engaged in the computer-aided design, pre-cut processing, and distribution of lumbers, design of two-by-four method, as well as the manufacture and distribution of panels. It is also engaged in the construction contracting of wooden detached houses and wooden general buildings as well as Real Estate Leasing business.
61GF Score
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