National Aluminium Co (BOM:532234) E10: ₹13.12 (As of Dec. 2025)


BOM:532234 National Aluminium Co Ltd BOM:532234
81 GF Score
Price ₹349.75
GF Value ₹215.57
Valuation Significantly Overvalued
! 1 Warning Sign
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What is National Aluminium Co E10?

National Aluminium Co BOM:532234 +2.12% 81 E10 is ₹13.12 as of Dec. 2025. GuruFocus rates BOM:532234 with a GF Score™ of 81/100 and a GF Value™ of ₹215.57 (Significantly Overvalued). The stock has 1 warning sign investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

National Aluminium Co's adjusted earnings per share data for the three months ended in Dec. 2025 was ₹8.690. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is ₹13.12 for the trailing ten years ended in Dec. 2025.

During the past 12 months, National Aluminium Co's average E10 Growth Rate was 32.80% per year. During the past 3 years, the average E10 Growth Rate was 18.60% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the E10 growth rate using E10 data.

During the past 13 years, the highest 3-Year average E10 Growth Rate of National Aluminium Co was 18.60% per year. The lowest was 17.40% per year. And the median was 18.00% per year.

As of today (2026-07-09), National Aluminium Co's current stock price is ₹349.75. National Aluminium Co's E10 for the quarter that ended in Dec. 2025 was ₹13.12. National Aluminium Co's Shiller PE Ratio of today is 26.66.

During the past 13 years, the highest Shiller PE Ratio of National Aluminium Co was 33.44. The lowest was 6.78. And the median was 16.65.


National Aluminium Co  (BOM:532234) E10 Explanation

If a company grows much fast than inflation, E10 may underestimate the company's earnings power. Shiller PE Ratio can seem to be too high even the actual P/E is low.

For the Shiller P/E, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller P/E is also called PE10.

The Shiller P/E was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

National Aluminium Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=349.75/13.12
=26.66

* 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.

During the past 13 years, the highest Shiller P/E Ratio of National Aluminium Co was 33.44. The lowest was 6.78. And the median was 16.65.


Be Aware

Shiller PE Ratio works better for cyclical companies. It gives you a better idea on the company's real earnings power.


National Aluminium Co E10 Related Terms


National Aluminium Co E10 Historical Data

* Premium members only.

The historical data trend for National Aluminium Co's E10 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.

National Aluminium Co E10 Chart

National Aluminium Co Annual Data
Trend Mar16 Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 5.05 6.54 7.23 8.18 10.92

National Aluminium Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
E10 Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 9.88 10.92 11.55 12.36 13.12

BOM:532234 vs AA: E10 Comparison

For the Aluminum subindustry, National Aluminium Co's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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 Shiller PE Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, National Aluminium Co's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where National Aluminium Co's Shiller PE Ratio falls into.


BOM:532234
81GF Score
National Aluminium Co Ltd BOM:532234
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

National Aluminium Co E10 Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller P/E calculation. When we calculate the today's Shiller P/E ratio of a stock, we use today's price divided by E10.

What is E10? How do we calculate E10?

E10 is the average of the inflation adjusted earnings of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the E10 of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the earnings from 2001 through 2010.

We adjusted the earnings of 2001 earnings data with the total inflation from 2001 through 2010 to the equivalent earnings in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart earned $1 a share in 2001, then the 2001's equivalent earnings in 2010 is $1.4 a share. If Wal-Mart earns $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 earnings in 2010 is $1.35. So on and so forth, you get the equivalent earnings of past 10 years. Then you add them together and divided the sum by 10 to get E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, National Aluminium Co's adjusted earnings per share data for the three months ended in Dec. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=8.69/163.2808*163.2808
=8.690

Current CPI (Dec. 2025) = 163.2808.

National Aluminium Co Quarterly Data

per share eps CPI Adj_EPS
201412 1.380 96.780 2.328
201503 1.380 97.163 2.319
201506 0.680 99.841 1.112
201509 0.880 101.753 1.412
201512 0.520 102.901 0.825
201603 1.020 102.518 1.625
201606 0.520 105.961 0.801
201703 0.000 105.196 0.000
201803 0.000 109.786 0.000
201806 3.560 111.317 5.222
201809 2.640 115.142 3.744
201812 1.580 115.142 2.241
201903 1.290 118.202 1.782
201906 0.520 120.880 0.702
201909 -0.150 123.175 -0.199
201912 -0.180 126.235 -0.233
202003 0.540 124.705 0.707
202006 0.090 127.000 0.116
202009 0.570 130.118 0.715
202012 1.280 130.889 1.597
202103 5.020 131.771 6.220
202106 1.890 134.084 2.302
202109 4.070 135.847 4.892
202112 4.520 138.161 5.342
202203 5.580 138.822 6.563
202206 3.040 142.347 3.487
202209 0.680 144.661 0.768
202212 1.400 145.763 1.568
202303 2.690 146.865 2.991
202306 1.820 150.280 1.977
202309 1.020 151.492 1.099
202312 2.560 152.924 2.733
202403 5.430 153.035 5.794
202406 3.200 155.789 3.354
202409 5.700 157.882 5.895
202412 8.530 158.323 8.797
202503 11.250 157.552 11.659
202506 5.710 159.755 5.836
202509 7.790 162.289 7.838
202512 8.690 163.281 8.690

Add all the adjusted EPS together and divide 10 will get our e10.

Frequently Asked Questions Learn more about E10 →
What does a E10 of ₹13.12 mean?
National Aluminium Co (BOM:532234) has a E10 of ₹13.12 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on National Aluminium Co and its competitors.
Is National Aluminium Co's E10 too high?
National Aluminium Co's current E10 is ₹13.12. 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 E10 compare to AA?
National Aluminium Co's E10 of ₹13.12 can be compared against companies in the Metals & Mining industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good E10 for a Metals & Mining company?
A good E10 depends on the Metals & Mining industry context. However, E10 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 E10 mean?
A high E10 can signal that a stock is expensive relative to its fundamentals. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on National Aluminium Co and its competitors. National Aluminium Co's current E10 is ₹13.12. 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 ₹215.57, compared to a current price of ₹349.75 — trading 62.2% above its estimated fair value. The current E10 is ₹13.12. 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 E10 calculated?
E10 is calculated from a company's financial statements. For National Aluminium Co (BOM:532234), the current E10 is ₹13.12 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 62.2% above its estimated GF Value™ of ₹215.57. GuruFocus considers National Aluminium Co to be Significantly Overvalued.

Key valuation signals for BOM:532234:

  • E10: ₹13.12
  • GF Value™: ₹215.57 vs. price of ₹349.75 (62.2% above fair value)
  • GF Score™: 81/100 with 1 warning sign

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 Business Description

Other Exchanges NATIONALUM:India
Address Nalco Bhawan, Plot No. P/1, Nayapalli, Bhubaneswar, OR, IND, 751013
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

Get the complete analysis for BOM:532234

E10 is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

₹349.75
Price
₹215.57
GF Value