Yamau Holdings CoTSE:5284 -0.09%73 Operating Margin % is 21.03% as of Mar. 2026, which is 136% above its 10-year median of 8.91. GuruFocus rates TSE:5284 with a GF Score™ of 73/100 and a GF Value™ of 円1,954.68 (Modestly Overvalued). The stock has 3 warning signs investors should review. Among 405 Building Materials companies, Yamau Holdings Co ranks better than 81.23% on this metric.
Yamau Holdings Co Ltd operating margin is expanding. Margin expansion is usually a good sign.
The historical rank and industry rank for Yamau Holdings Co's Operating Margin % or its related term are showing as below:
TSE:5284'
s Operating Margin % Range Over the Past 10 Years
Min: 2.29 Med: 8.91 Max: 16.68
Current: 16.68
TSE:5284's Operating Margin % is ranked better than 81.23% of 405
companies
in the Building Materials industry
Industry Median: 7.64
vs TSE:5284: 16.68
Yamau Holdings Co's 5-Year Average Operating Margin % Growth Rate was 16.90% per year.
Yamau Holdings Co (TSE:5284) 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.
Yamau Holdings Co Operating Margin % Related Terms
Yamau Holdings Co Operating Margin % Historical Data
* Premium members only.
The historical data trend for Yamau Holdings 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:5284 vs CRH, VMC, MLM: Operating Margin % Comparison
For the Building Materials subindustry, Yamau Holdings 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.
Yamau Holdings Co Operating Margin % vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, Yamau Holdings Co's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Yamau Holdings 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.
Yamau Holdings Co's Operating Margin % for the fiscal year that 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.
Yamau Holdings Co (TSE:5284) has a Operating Margin % of 21.03% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on Yamau Holdings Co and its competitors. This is 136% above median its historical median of 8.91. Over the past decade, Yamau Holdings Co's Operating Margin % has ranged from 2.29 to 16.68. According to the industry distribution chart, Yamau Holdings Co ranks #76 out of 405 companies in the Building Materials industry, placing it in the top 18.8%.
Is Yamau Holdings Co's Operating Margin % too high?
Yamau Holdings Co's current Operating Margin % of 21.03% is 136% above median its 10-year median of 8.91. Over the past 10 years, this metric has ranged from a low of 2.29 to a high of 16.68. The Building Materials industry median Operating Margin % is 7.64. Yamau Holdings Co's value of 21.03% is 175.3% above this industry median. Based on the distribution chart, Yamau Holdings Co ranks #76 out of 405 companies in the Building Materials industry, which is in the top quartile — a strong position relative to peers. Overall, Yamau Holdings Co has a GF Score™ of 73/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yamau Holdings Co's Operating Margin % compare to CRH and VMC?
According to the Building Materials industry distribution chart, Yamau Holdings Co ranks #76 out of 405 companies for Operating Margin %. This places Yamau Holdings Co in the top 19% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 7.64. Yamau Holdings Co's value of 21.03% is 175.3% above this benchmark. Historically, Yamau Holdings Co's own Operating Margin % has ranged from 2.29 to 16.68 over the past decade. While the company's 10-year median is 8.91 vs. the industry median of 7.64, Yamau Holdings 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 Building Materials company?
The median Operating Margin % among Building Materials companies is 7.64, based on 405 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. Yamau Holdings Co's current Operating Margin % of 21.03% is 175.3% 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 Yamau Holdings Co and its competitors. For the Building Materials industry, the median Operating Margin % is 7.64 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Yamau Holdings Co's current Operating Margin % is 21.03%, which is 136% above median its own 10-year median of 8.91. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yamau Holdings Co stock overvalued right now?
Based on GuruFocus' analysis, Yamau Holdings Co (TSE:5284) is currently considered Modestly Overvalued. The stock's GF Value™ is 円1,954.68, compared to a current price of 円2,200.00 — trading 12.6% above its estimated fair value. The current Operating Margin % is 21.03%, which is 136% above median its 10-year median of 8.91 and 175.3% above the Building Materials industry median of 7.64. Yamau Holdings Co's overall GF Score™ is 73/100 with 3 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 Yamau Holdings Co (TSE:5284), the current Operating Margin % is 21.03% 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 Yamau Holdings Co (TSE:5284) Overvalued in 2026?
Based on GuruFocus' analysis, Yamau Holdings Co stock appears to be overvalued.
The current stock price of 円2,200.00 is trading 12.6% above its estimated GF Value™ of 円1,954.68.
GuruFocus considers Yamau Holdings Co to be Modestly Overvalued.
Key valuation signals for TSE:5284:
Operating Margin %: 21.03% (136% above median its 10-year median of 8.91)
GF Value™: 円1,954.68 vs. price of 円2,200.00 (12.6% above fair value)
Industry Position: 175.3% above the Building Materials median (#76 of 405)
No single metric tells the full story. See the TSE:5284 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Yamau Holdings Co Ltd Is a Japan based company engaged in engineering, manufacturing and selling concrete products. It offers civil products, including river rocks, type retaining walls, sewer drains, functional concrete, and dam related products. The concrete product portfolio of the company comprises Aquapond S-type, Green rock, Kagomasu, Tameloop, Loop Arch, FA Box, Precast box culvert, fire protection water tank, power rock, super cliff, three side channel and YT channel, among others.
73GF Score
Get the complete analysis for TSE:5284
Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
TSE:5284 has been successfully added to your 
