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National Aluminium CoNSE:NATIONALUM -4.10%81 Pretax Margin % is 44.93% as of Dec. 2025, which is 134% above its 10-year median of 19.24. GuruFocus rates NSE:NATIONALUM with a GF Score™ of 81/100 and a GF Value™ of ₹217.25 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 844 Metals & Mining companies, National Aluminium Co ranks better than 87.2% on this metric.
The historical rank and industry rank for National Aluminium Co's Pretax Margin % or its related term are showing as below:
NSE:NATIONALUM'
s Pretax Margin % Range Over the Past 10 Years
Min: 2.66 Med: 19.24 Max: 45.52
Current: 45.52
NSE:NATIONALUM's Pretax Margin % is ranked better than 87.2% of 844
companies
in the Metals & Mining industry
Industry Median: 4.84
vs NSE:NATIONALUM: 45.52
National Aluminium Co (NSE:NATIONALUM) Pretax Margin % Explanation
The pretax margin, as know as pretax profit margin, is widely used to measure the operating efficiency of a company before deducting taxes.
The pretax margin is sometimes preferred over the net margin as tax expenditures can make profitability comparisons between companies misleading.
It is a useful tool to compare companies operating in the same sector and less effective when comparing companies from other sectors as each industry generally has different operating expenses and sales patterns.
The long term trend of the pretax margin is a good indicator of the competitiveness and health of the business.
National Aluminium Co Pretax Margin % Related Terms
National Aluminium Co Pretax Margin % Historical Data
* Premium members only.
The historical data trend for National Aluminium Co's Pretax 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.
For the Aluminum subindustry, National Aluminium Co's Pretax Margin %, along with its competitors' market caps and Pretax 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 Aluminium Co Pretax Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, National Aluminium Co's Pretax Margin % distribution charts can be found below:
* The bar in red indicates where National Aluminium Co's Pretax 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.
National Aluminium Co (NSE:NATIONALUM) has a Pretax Margin % of 44.93% as of Dec. 2025. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on National Aluminium Co and its competitors. This is 134% above median its historical median of 19.24. Over the past decade, National Aluminium Co's Pretax Margin % has ranged from 2.66 to 45.52. According to the industry distribution chart, National Aluminium Co ranks #108 out of 844 companies in the Metals & Mining industry, placing it in the top 12.8%.
Is National Aluminium Co's Pretax Margin % too high?
National Aluminium Co's current Pretax Margin % of 44.93% is 134% above median its 10-year median of 19.24. Over the past 10 years, this metric has ranged from a low of 2.66 to a high of 45.52. The Metals & Mining industry median Pretax Margin % is 4.84. National Aluminium Co's value of 44.93% is 828.3% above this industry median. Based on the distribution chart, National Aluminium Co ranks #108 out of 844 companies in the Metals & Mining industry, which is in the top quartile — a strong position relative to peers. Overall, National Aluminium Co has a GF Score™ of 81/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does National Aluminium Co's Pretax Margin % compare to AA?
According to the Metals & Mining industry distribution chart, National Aluminium Co ranks #108 out of 844 companies for Pretax Margin %. This places National Aluminium Co in the top 13% of its industry — outperforming the majority of peers. The industry median Pretax Margin % is 4.84. National Aluminium Co's value of 44.93% is 828.3% above this benchmark. Historically, National Aluminium Co's own Pretax Margin % has ranged from 2.66 to 45.52 over the past decade. While the company's 10-year median is 19.24 vs. the industry median of 4.84, National Aluminium 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 Pretax Margin % for a Metals & Mining company?
The median Pretax Margin % among Metals & Mining companies is 4.84, based on 844 companies in the industry. Companies in the top quartile (top 25%) have a Pretax Margin % significantly above this median, while those in the bottom quartile fall well below. However, Pretax Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. National Aluminium Co's current Pretax Margin % of 44.93% is 828.3% 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 Pretax Margin % mean?
A high Pretax Margin % can signal that a stock is expensive relative to its fundamentals. Pre-Tax margin is the ratio of total pre-tax income to net sales. View historical data on National Aluminium Co and its competitors. For the Metals & Mining industry, the median Pretax Margin % is 4.84 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. National Aluminium Co's current Pretax Margin % is 44.93%, which is 134% above median its own 10-year median of 19.24. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Aluminium Co stock overvalued right now?
Based on GuruFocus' analysis, National Aluminium Co (NSE:NATIONALUM) is currently considered Significantly Overvalued. The stock's GF Value™ is ₹217.25, compared to a current price of ₹339.90 — trading 56.5% above its estimated fair value. The current Pretax Margin % is 44.93%, which is 134% above median its 10-year median of 19.24 and 828.3% above the Metals & Mining industry median of 4.84. National Aluminium Co's overall GF Score™ is 81/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Pretax Margin % calculated?
Pretax Margin % is calculated from a company's financial statements. For National Aluminium Co (NSE:NATIONALUM), the current Pretax Margin % is 44.93% 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 National Aluminium Co (NSE:NATIONALUM) Overvalued in 2026?
Based on GuruFocus' analysis, National Aluminium Co stock appears to be overvalued.
The current stock price of ₹339.90 is trading 56.5% above its estimated GF Value™ of ₹217.25.
GuruFocus considers National Aluminium Co to be Significantly Overvalued.
Key valuation signals for NSE:NATIONALUM:
Pretax Margin %: 44.93% (134% above median its 10-year median of 19.24)
GF Value™: ₹217.25 vs. price of ₹339.90 (56.5% above fair value)
Industry Position: 828.3% above the Metals & Mining median (#108 of 844)
No single metric tells the full story. See the NSE:NATIONALUM stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
National Aluminium Co Ltd mines, produces and sells aluminum and alumina-based products in two segments: Aluminium and Chemicals. The company controls all stages of the aluminum process. The firm mines bauxite and refines it into alumina, then smelts maximum of the alumina into aluminum. The aluminum segment, which generates the majority of revenue, sells aluminum-based products. The chemicals segment sells calcinated alumina and alumina hydrate. The firm also owns and operates multiple power plants throughout India. The company derives maximum revenue from Aluminum segment.
81GF Score
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