National Aluminium CoBOM:532234 +2.12%81 Interest Coverage is 33.45 as of Dec. 2025, which is 88% below its 10-year median of 284.26. GuruFocus rates BOM:532234 with a GF Score™ of 81/100 and a GF Value™ of ₹215.70 (Significantly Overvalued). The stock has 1 warning sign investors should review. Among 1,314 Metals & Mining companies, National Aluminium Co ranks worse than 65.45% on this metric.
Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's
Operating Income
by its Interest Expense. National Aluminium Co's
Operating Income
for the
three
months ended in Dec. 2025 was ₹19,942 Mil. National Aluminium Co's Interest Expense for the
three
months ended in Dec. 2025 was ₹-596 Mil.
National Aluminium Co's interest coverage for the quarter that ended in Dec. 2025 was 33.45.
The higher the ratio, the stronger the company's financial strength is.
Good Sign:
Ben Graham prefers companies' interest coverage to be at least 5. National Aluminium Co Ltd has enough cash to cover all of its debt. Its financial situation is stable.
The historical rank and industry rank for National Aluminium Co's Interest Coverage or its related term are showing as below:
BOM:532234'
s Interest Coverage Range Over the Past 10 Years
Min: 83.76 Med: 284.26 Max: 1028.75
Current: 83.76
BOM:532234's Interest Coverage is ranked worse than 65.45% of 1314
companies
in the Metals & Mining industry
Industry Median: No Debt
vs BOM:532234: 83.76
National Aluminium Co (BOM:532234) Interest Coverage Explanation
Ben Graham requires that a company has a minimum interest coverage of 5 with the companies he invested. If the interest coverage is less than 2, the company is burdened by debt. Any business slow or recession may drag the company into a situation where it cannot pay the interest on its debt.
Interest Coverage is an important factor when GuruFocus ranks a company's overage Financial Strength .
National Aluminium Co Interest Coverage Related Terms
National Aluminium Co Interest Coverage Historical Data
* Premium members only.
The historical data trend for National Aluminium Co's Interest Coverage 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.
Note: For Interest Coverage, "No debt" indicates no long-term debt. An indication of "No Debt" does not necessarily mean that the company has no long-term debt obligations; it could be due to missing data in the quarterly or annual report. Use caution when interpreting this information.
For the Aluminum subindustry, National Aluminium Co's Interest Coverage, along with its competitors' market caps and Interest Coverage 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 Interest Coverage vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, National Aluminium Co's Interest Coverage distribution charts can be found below:
* The bar in red indicates where National Aluminium Co's Interest Coverage falls into.
National Aluminium Co Interest Coverage Calculation
Interest Coverage is a ratio that determines how easily a company can pay interest expenses on outstanding debt. It is calculated by dividing a company's Operating Income (EBIT) by its Interest Expense:
* 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 (BOM:532234) has a Interest Coverage of 33.45 as of Dec. 2025. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on National Aluminium Co and its competitors. This is 88% below median its historical median of 284.26. Over the past decade, National Aluminium Co's Interest Coverage has ranged from 83.76 to 1,028.75. According to the industry distribution chart, National Aluminium Co ranks #860 out of 1314 companies in the Metals & Mining industry, placing it in the top 65.4%.
Is National Aluminium Co's Interest Coverage too high?
National Aluminium Co's current Interest Coverage of 33.45 is 88% below median its 10-year median of 284.26. Over the past 10 years, this metric has ranged from a low of 83.76 to a high of 1,028.75. The Metals & Mining industry median Interest Coverage is 10,000.00. National Aluminium Co's value of 33.45 is 99.7% below this industry median. Based on the distribution chart, National Aluminium Co ranks #860 out of 1314 companies in the Metals & Mining industry, which is below the industry midpoint. 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 Interest Coverage compare to AA?
According to the Metals & Mining industry distribution chart, National Aluminium Co ranks #860 out of 1314 companies for Interest Coverage. This places National Aluminium Co in the lower half of its industry. The industry median Interest Coverage is 10,000.00. National Aluminium Co's value of 33.45 is 99.7% below this benchmark. Historically, National Aluminium Co's own Interest Coverage has ranged from 83.76 to 1,028.75 over the past decade. While the company's 10-year median is 284.26 vs. the industry median of 10,000.00, National Aluminium Co has consistently been below 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 Interest Coverage for a Metals & Mining company?
The median Interest Coverage among Metals & Mining companies is 10,000.00, based on 1,314 companies in the industry. Companies in the top quartile (top 25%) have a Interest Coverage significantly above this median, while those in the bottom quartile fall well below. However, Interest Coverage should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. National Aluminium Co's current Interest Coverage of 33.45 is 99.7% below 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 Interest Coverage mean?
A high Interest Coverage can signal that a stock is expensive relative to its fundamentals. Interest Coverage measures a company's capability to pay interest expenses on its debt. View historical data on National Aluminium Co and its competitors. For the Metals & Mining industry, the median Interest Coverage is 10,000.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. National Aluminium Co's current Interest Coverage is 33.45, which is 88% below median its own 10-year median of 284.26. 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 (BOM:532234) is currently considered Significantly Overvalued. The stock's GF Value™ is ₹215.70, compared to a current price of ₹349.75 — trading 62.1% above its estimated fair value. The current Interest Coverage is 33.45, which is 88% below median its 10-year median of 284.26 and 99.7% below the Metals & Mining industry median of 10,000.00. 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 Interest Coverage calculated?
Interest Coverage is calculated from a company's financial statements. For National Aluminium Co (BOM:532234), the current Interest Coverage is 33.45 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 (BOM:532234) Overvalued in 2026?
Based on GuruFocus' analysis, National Aluminium Co stock appears to be overvalued.
The current stock price of ₹349.75 is trading 62.1% above its estimated GF Value™ of ₹215.70.
GuruFocus considers National Aluminium Co to be Significantly Overvalued.
Key valuation signals for BOM:532234:
Interest Coverage: 33.45 (88% below median its 10-year median of 284.26)
GF Value™: ₹215.70 vs. price of ₹349.75 (62.1% above fair value)
Industry Position: 99.7% below the Metals & Mining median (#860 of 1314)
No single metric tells the full story. See the BOM:532234 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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