Nippon Aqua Co (FRA:N3A) E10: €0.24 (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

FRA:N3A Nippon Aqua Co Ltd FRA:N3A
73 GF Score
Price €3.96
GF Value €5.70
View Full Analysis

What is Nippon Aqua Co E10?

Nippon Aqua Co FRA:N3A +0.51% 73 E10 is €0.24 as of Dec. 2025. GuruFocus rates FRA:N3A with a GF Score™ of 73/100 and a GF Value™ of €5.70.

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.

Nippon Aqua Co's adjusted earnings per share data for the three months ended in Dec. 2025 was €0.122. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €0.24 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Nippon Aqua Co's average E10 Growth Rate was 16.50% 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.

As of today (2026-07-23), Nippon Aqua Co's current stock price is €3.96. Nippon Aqua Co's E10 for the quarter that ended in Dec. 2025 was €0.24. Nippon Aqua Co's Shiller PE Ratio of today is 16.50.

During the past 13 years, the highest Shiller PE Ratio of Nippon Aqua Co was 34.28. The lowest was 15.40. And the median was 21.87.


Nippon Aqua Co  (FRA:N3A) 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.

Nippon Aqua Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=3.96/0.24
=16.50

* 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 Nippon Aqua Co was 34.28. The lowest was 15.40. And the median was 21.87.


Be Aware

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


Nippon Aqua Co E10 Related Terms


Nippon Aqua Co E10 Historical Data

* Premium members only.

The historical data trend for Nippon Aqua 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.

Nippon Aqua Co E10 Chart

Nippon Aqua Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.20 0.23 0.24

Nippon Aqua Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 0.24 0.25 0.25 0.24 0.00

FRA:N3A vs PWR, FIX, EME: E10 Comparison

For the Engineering & Construction subindustry, Nippon Aqua 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.


Nippon Aqua Co Shiller PE Ratio vs Construction Industry

For the Construction industry and Industrials sector, Nippon Aqua Co's Shiller PE Ratio distribution charts can be found below:

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


FRA:N3A
73GF Score
Nippon Aqua Co Ltd FRA:N3A
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Nippon Aqua 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, Nippon Aqua 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)
=0.122/113.0000*113.0000
=0.122

Current CPI (Dec. 2025) = 113.0000.

Nippon Aqua Co Quarterly Data

per share eps CPI Adj_EPS
201603 0.034 97.900 0.039
201606 0.051 98.100 0.059
201609 0.061 98.000 0.070
201612 0.081 98.400 0.093
201703 0.046 98.100 0.053
201706 0.045 98.500 0.052
201709 0.063 98.800 0.072
201712 0.062 99.400 0.070
201803 -0.014 99.200 -0.016
201806 0.013 99.200 0.015
201809 0.023 99.900 0.026
201812 0.097 99.700 0.110
201903 0.057 99.700 0.065
201906 0.060 99.800 0.068
201909 0.098 100.100 0.111
201912 0.109 100.500 0.123
202003 0.076 100.300 0.086
202006 0.058 99.900 0.066
202009 0.065 99.900 0.074
202012 0.138 99.300 0.157
202103 0.026 99.900 0.029
202106 0.024 99.500 0.027
202109 0.081 100.100 0.091
202112 0.096 100.100 0.108
202203 0.074 101.100 0.083
202206 0.069 101.800 0.077
202209 0.108 103.100 0.118
202212 0.093 104.100 0.101
202303 0.096 104.400 0.104
202306 0.107 105.200 0.115
202309 0.113 106.200 0.120
202312 0.100 106.800 0.106
202403 0.059 107.200 0.062
202406 0.052 108.200 0.054
202409 0.093 108.900 0.097
202412 0.157 110.700 0.160
202503 0.070 111.100 0.071
202506 0.073 111.700 0.074
202509 0.079 112.000 0.080
202512 0.122 113.000 0.122

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 €0.24 mean?
Nippon Aqua Co (FRA:N3A) has a E10 of €0.24 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Nippon Aqua Co and its competitors.
Is Nippon Aqua Co's E10 too high?
Nippon Aqua Co's current E10 is €0.24. Overall, Nippon Aqua Co has a GF Score™ of 73/100, reflecting its overall financial health beyond just this single metric.
How does Nippon Aqua Co's E10 compare to PWR and FIX?
Nippon Aqua Co's E10 of €0.24 can be compared against companies in the Construction 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 Construction company?
A good E10 depends on the Construction 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 Nippon Aqua Co and its competitors. Nippon Aqua Co's current E10 is €0.24. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nippon Aqua Co stock overvalued right now?
Nippon Aqua Co (FRA:N3A) has a current E10 of €0.24. The stock's GF Value™ is €5.70, compared to a current price of €3.96 — trading 30.5% below its estimated fair value. The current E10 is €0.24. Nippon Aqua Co's overall GF Score™ is 73/100. 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 Nippon Aqua Co (FRA:N3A), the current E10 is €0.24 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 Nippon Aqua Co (FRA:N3A) Overvalued in 2026?

Based on GuruFocus' analysis, Nippon Aqua Co stock appears to be undervalued. The current stock price of €3.96 is trading 30.5% below its estimated GF Value™ of €5.70.

Key valuation signals for FRA:N3A:

  • E10: €0.24
  • GF Value™: €5.70 vs. price of €3.96 (30.5% below fair value)
  • GF Score™: 73/100

No single metric tells the full story. See the FRA:N3A stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Nippon Aqua Co Business Description

Other Exchanges 1429:Japan
Address 2-16-2 Konan, Minato-ku, Tokyo, JPN, 222-0033
Nippon Aqua Co Ltd is engaged in the development, sales, and installation of rigid polyurethane foam (Note) and waterproofing materials (polyurea). The company also provides a comprehensive service from the procurement, manufacturing, and sales of raw materials according to its specifications, to insulation design, sales of related materials such as heat-shielding materials, and on-site installation. Its business consists of a single business: thermal insulation construction and related services.
73GF Score

Get the complete analysis for FRA:N3A

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

€3.96
Price
€5.70
GF Value