Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
National OxygenBOM:507813 -0.47%38 Gross Margin % is 57.30% as of Jun. 2026, which is 40% below its 10-year median of 96.11. GuruFocus rates BOM:507813 with a GF Score™ of 38/100 and a GF Value™ of ₹49.82 (Modestly Overvalued). The stock has 6 warning signs investors should review. Among 1,567 Chemicals companies, National Oxygen ranks better than 99.49% on this metric.
National Oxygen (BOM:507813) Gross Margin % Explanation
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
National Oxygen had a gross margin of 57.30% for the quarter that ended in Jun. 2026 => Durable competitive advantage
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
National Oxygen Gross Margin % Related Terms
National Oxygen Gross Margin % Historical Data
* Premium members only.
The historical data trend for National Oxygen's Gross 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: Gross Margin % Comparison
For the Specialty Chemicals subindustry, National Oxygen's Gross Margin %, along with its competitors' market caps and Gross 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 Gross Margin % vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, National Oxygen's Gross Margin % distribution charts can be found below:
* The bar in red indicates where National Oxygen's Gross Margin % falls into.
* 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 positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
National Oxygen (BOM:507813) has a Gross Margin % of 57.30% as of Jun. 2026. Gross margin is the ratio of total gross profit to net sales. View historical data on National Oxygen and its competitors. This is 40% below median its historical median of 96.11. Over the past decade, National Oxygen's Gross Margin % has ranged from 92.28 to 97.17. According to the industry distribution chart, National Oxygen ranks #8 out of 1567 companies in the Chemicals industry, placing it in the top 0.5%.
Is National Oxygen's Gross Margin % too high?
National Oxygen's current Gross Margin % of 57.30% is 40% below median its 10-year median of 96.11. Over the past 10 years, this metric has ranged from a low of 92.28 to a high of 97.17. The Chemicals industry median Gross Margin % is 24.03. National Oxygen's value of 57.30% is 138.5% above this industry median. Based on the distribution chart, National Oxygen ranks #8 out of 1567 companies in the Chemicals industry, which is in the top quartile — a strong position relative to peers. Overall, National Oxygen has a GF Score™ of 38/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does National Oxygen's Gross Margin % compare to LIN and SHW?
According to the Chemicals industry distribution chart, National Oxygen ranks #8 out of 1567 companies for Gross Margin %. This places National Oxygen in the top 1% of its industry — outperforming the majority of peers. The industry median Gross Margin % is 24.03. National Oxygen's value of 57.30% is 138.5% above this benchmark. Historically, National Oxygen's own Gross Margin % has ranged from 92.28 to 97.17 over the past decade. While the company's 10-year median is 96.11 vs. the industry median of 24.03, National Oxygen 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 Gross Margin % for a Chemicals company?
The median Gross Margin % among Chemicals companies is 24.03, based on 1,567 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. National Oxygen's current Gross Margin % of 57.30% is 138.5% 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on National Oxygen and its competitors. For the Chemicals industry, the median Gross Margin % is 24.03 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. National Oxygen's current Gross Margin % is 57.30%, which is 40% below median its own 10-year median of 96.11. 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 Modestly Overvalued. The stock's GF Value™ is ₹49.82, compared to a current price of ₹58.90 — trading 18.2% above its estimated fair value. The current Gross Margin % is 57.30%, which is 40% below median its 10-year median of 96.11 and 138.5% above the Chemicals industry median of 24.03. National Oxygen's overall GF Score™ is 38/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For National Oxygen (BOM:507813), the current Gross Margin % is 57.30% as of Jun. 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 ₹58.90 is trading 18.2% above its estimated GF Value™ of ₹49.82.
GuruFocus considers National Oxygen to be Modestly Overvalued.
Key valuation signals for BOM:507813:
Gross Margin %: 57.30% (40% below median its 10-year median of 96.11)
GF Value™: ₹49.82 vs. price of ₹58.90 (18.2% above fair value)
Industry Position: 138.5% above the Chemicals median (#8 of 1567)
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.
38GF Score
Get the complete analysis for BOM:507813
Gross 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
BOM:507813 has been successfully added to your 
