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Nagaoka International (TSE:6239) 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.
Nagaoka International Operating Margin % Related Terms
Nagaoka International Operating Margin % Historical Data
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The historical data trend for Nagaoka International'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:6239 vs VLO, MPC, PSX: Operating Margin % Comparison
For the Oil & Gas Refining & Marketing subindustry, Nagaoka International'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.
Nagaoka International Operating Margin % vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Nagaoka International's Operating Margin % distribution charts can be found below:
* The bar in red indicates where Nagaoka International's Operating Margin % falls into.
Nagaoka International Operating Margin % Calculation
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.
Nagaoka International's Operating Margin % for the fiscal year that ended in Jun. 2025 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.
Nagaoka International (TSE:6239) has a Operating Margin % of 0.00% as of Dec. 2025. Operating margin is the ratio of total operating income to net sales. View historical data on Nagaoka International and its competitors. According to the industry distribution chart, Nagaoka International ranks #323 out of 917 companies in the Oil & Gas industry, placing it in the top 35.2%.
Is Nagaoka International's Operating Margin % too high?
Nagaoka International's current Operating Margin % is 0.00%. Based on the distribution chart, Nagaoka International ranks #323 out of 917 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, Nagaoka International has a GF Score™ of 63/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Nagaoka International's Operating Margin % compare to VLO and MPC?
According to the Oil & Gas industry distribution chart, Nagaoka International ranks #323 out of 917 companies for Operating Margin %. This puts Nagaoka International in the upper half of its industry. The industry median Operating Margin % is 6.97. 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 Oil & Gas company?
The median Operating Margin % among Oil & Gas companies is 6.97, based on 917 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. 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 Nagaoka International and its competitors. For the Oil & Gas industry, the median Operating Margin % is 6.97 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Nagaoka International's current Operating Margin % is 0.00%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nagaoka International stock overvalued right now?
Based on GuruFocus' analysis, Nagaoka International (TSE:6239) is currently considered Significantly Overvalued. The stock's GF Value™ is 円889.34, compared to a current price of 円1,322.00 — trading 48.6% above its estimated fair value. The current Operating Margin % is 0.00%. Nagaoka International's overall GF Score™ is 63/100 with 1 warning sign 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 Nagaoka International (TSE:6239), the current Operating Margin % is 0.00% as of Dec. 2025. 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 Nagaoka International (TSE:6239) Overvalued in 2026?
Based on GuruFocus' analysis, Nagaoka International stock appears to be overvalued.
The current stock price of 円1,322.00 is trading 48.6% above its estimated GF Value™ of 円889.34.
GuruFocus considers Nagaoka International to be Significantly Overvalued.
Key valuation signals for TSE:6239:
Operating Margin %: 0.00%
GF Value™: 円889.34 vs. price of 円1,322.00 (48.6% above fair value)
No single metric tells the full story. See the TSE:6239 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Nagaoka International Corp is engaged in the manufacturing and sale of equipment and systems for energy and water-related industries. The company has two reportable segments: energy-related business and water-related business. The energy-related business focuses on producing screen internals and internal equipment for oil refineries and petrochemical plants. The water-related business is involved in the manufacture and sale of water intake screens, Chemiless and Hisys systems, and the construction of water treatment plants. It generates the majority of its revenue from the Energy-related business segment.
63GF Score
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Operating Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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