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A-One SeimitsuTSE:6156 +0.05%68 Operating Margin % is 12.85% as of Mar. 2026, which is 44% below its 10-year median of 22.94. GuruFocus rates TSE:6156 with a GF Score™ of 68/100 and a GF Value™ of 円1,887.65 (Fairly Valued). The stock has 4 warning signs investors should review. Among 3,048 Industrial Products companies, A-One Seimitsu ranks better than 79.46% on this metric.
A-One Seimitsu Inc operating margin has been in a 5-year decline. The average rate of decline per year is -18.7%.
The historical rank and industry rank for A-One Seimitsu's Operating Margin % or its related term are showing as below:
TSE:6156'
s Operating Margin % Range Over the Past 10 Years
Min: 5.32 Med: 22.94 Max: 30.55
Current: 14.02
TSE:6156's Operating Margin % is ranked better than 79.46% of 3048
companies
in the Industrial Products industry
Industry Median: 6.45
vs TSE:6156: 14.02
A-One Seimitsu's 5-Year Average Operating Margin % Growth Rate was -18.70% per year.
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.
A-One Seimitsu Operating Margin % Related Terms
A-One Seimitsu Operating Margin % Historical Data
* Premium members only.
The historical data trend for A-One Seimitsu'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:6156 vs SNA, RBC, LECO: Operating Margin % Comparison
For the Tools & Accessories subindustry, A-One Seimitsu'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.
A-One Seimitsu Operating Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, A-One Seimitsu's Operating Margin % distribution charts can be found below:
* The bar in red indicates where A-One Seimitsu'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.
A-One Seimitsu's Operating Margin % for the fiscal year that ended in Jun. 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.
A-One Seimitsu (TSE:6156) has a Operating Margin % of 12.85% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on A-One Seimitsu and its competitors. This is 44% below median its historical median of 22.94. Over the past decade, A-One Seimitsu's Operating Margin % has ranged from 5.32 to 30.55. According to the industry distribution chart, A-One Seimitsu ranks #626 out of 3048 companies in the Industrial Products industry, placing it in the top 20.5%.
Is A-One Seimitsu's Operating Margin % too high?
A-One Seimitsu's current Operating Margin % of 12.85% is 44% below median its 10-year median of 22.94. Over the past 10 years, this metric has ranged from a low of 5.32 to a high of 30.55. The Industrial Products industry median Operating Margin % is 6.45. A-One Seimitsu's value of 12.85% is 99.2% above this industry median. Based on the distribution chart, A-One Seimitsu ranks #626 out of 3048 companies in the Industrial Products industry, which is in the top quartile — a strong position relative to peers. Overall, A-One Seimitsu has a GF Score™ of 68/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does A-One Seimitsu's Operating Margin % compare to SNA and RBC?
According to the Industrial Products industry distribution chart, A-One Seimitsu ranks #626 out of 3048 companies for Operating Margin %. This places A-One Seimitsu in the top 21% of its industry — outperforming the majority of peers. The industry median Operating Margin % is 6.45. A-One Seimitsu's value of 12.85% is 99.2% above this benchmark. Historically, A-One Seimitsu's own Operating Margin % has ranged from 5.32 to 30.55 over the past decade. While the company's 10-year median is 22.94 vs. the industry median of 6.45, A-One Seimitsu 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 an Industrial Products company?
The median Operating Margin % among Industrial Products companies is 6.45, based on 3,048 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. A-One Seimitsu's current Operating Margin % of 12.85% is 99.2% 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 A-One Seimitsu and its competitors. For the Industrial Products industry, the median Operating Margin % is 6.45 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. A-One Seimitsu's current Operating Margin % is 12.85%, which is 44% below median its own 10-year median of 22.94. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is A-One Seimitsu stock overvalued right now?
Based on GuruFocus' analysis, A-One Seimitsu (TSE:6156) is currently considered Fairly Valued. The stock's GF Value™ is 円1,887.65, compared to a current price of 円1,878.00 — trading 0.5% below its estimated fair value. The current Operating Margin % is 12.85%, which is 44% below median its 10-year median of 22.94 and 99.2% above the Industrial Products industry median of 6.45. A-One Seimitsu's overall GF Score™ is 68/100 with 4 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 A-One Seimitsu (TSE:6156), the current Operating Margin % is 12.85% 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 A-One Seimitsu (TSE:6156) Overvalued in 2026?
Based on GuruFocus' analysis, A-One Seimitsu stock appears to be undervalued.
The current stock price of 円1,878.00 is trading 0.5% below its estimated GF Value™ of 円1,887.65.
GuruFocus considers A-One Seimitsu to be Fairly Valued.
Key valuation signals for TSE:6156:
Operating Margin %: 12.85% (44% below median its 10-year median of 22.94)
GF Value™: 円1,887.65 vs. price of 円1,878.00 (0.5% below fair value)
Industry Position: 99.2% above the Industrial Products median (#626 of 3048)
No single metric tells the full story. See the TSE:6156 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
A-One Seimitsu Inc is engaged in the manufacturing of various collet chucks, guide bushes, cutting tools, and the manufacturing and sales of cams for automatic lathes. It also manufactures cutting tool re-polishing, special cutting tools.
68GF Score
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