National Oxygen (BOM:507813) 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.
National Oxygen Operating Margin % Related Terms
National Oxygen Operating Margin % Historical Data
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The historical data trend for National Oxygen'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.
BOM:507813 vs LIN, SHW, ECL: Operating Margin % Comparison
For the Specialty Chemicals subindustry, National Oxygen'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.
National Oxygen Operating Margin % vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, National Oxygen's Operating Margin % distribution charts can be found below:
* The bar in red indicates where National Oxygen'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.
National Oxygen'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.
National Oxygen (BOM:507813) has a Operating Margin % of -41.70% as of Mar. 2026. Operating margin is the ratio of total operating income to net sales. View historical data on National Oxygen and its competitors. According to the industry distribution chart, National Oxygen ranks #1477 out of 1575 companies in the Chemicals industry, placing it in the top 93.8%.
Is National Oxygen's Operating Margin % too high?
National Oxygen's current Operating Margin % is -41.70%. Based on the distribution chart, National Oxygen ranks #1477 out of 1575 companies in the Chemicals industry, which is in the bottom quartile relative to peers. Overall, National Oxygen has a GF Score™ of 39/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does National Oxygen's Operating Margin % compare to LIN and SHW?
According to the Chemicals industry distribution chart, National Oxygen ranks #1477 out of 1575 companies for Operating Margin %. This places National Oxygen in the lower half of its industry. The industry median Operating Margin % is 6.03. 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 Chemicals company?
The median Operating Margin % among Chemicals companies is 6.03, based on 1,575 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 National Oxygen and its competitors. For the Chemicals industry, the median Operating Margin % is 6.03 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. National Oxygen's current Operating Margin % is -41.70%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Oxygen stock overvalued right now?
Based on GuruFocus' analysis, National Oxygen (BOM:507813) is currently considered Fairly Valued. The stock's GF Value™ is ₹59.44, compared to a current price of ₹61.99 — trading 4.3% above its estimated fair value. The current Operating Margin % is -41.70%. National Oxygen's overall GF Score™ is 39/100 with 6 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 National Oxygen (BOM:507813), the current Operating Margin % is -41.70% 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 National Oxygen (BOM:507813) Overvalued in 2026?
Based on GuruFocus' analysis, National Oxygen stock appears to be overvalued.
The current stock price of ₹61.99 is trading 4.3% above its estimated GF Value™ of ₹59.44.
GuruFocus considers National Oxygen to be Fairly Valued.
Key valuation signals for BOM:507813:
Operating Margin %: -41.70%
GF Value™: ₹59.44 vs. price of ₹61.99 (4.3% above fair value)
No single metric tells the full story. See the BOM:507813 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
National Oxygen Ltd is an Indian company engaged in manufacturing industrial gases, such as Oxygen and Nitrogen. It is a supplier of industrial gases both in liquid and gaseous forms. The company's products include Industrial liquid oxygen, Industrial gaseous oxygen, Industrial liquid nitrogen, and dissolved acetylene gas. The product's applications involve blast furnaces, copper smelting, the manufacture of explosives, heart stimulation, cryogenic preservation, and cutting and welding. The group derives key revenue from India.
39GF 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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