EF-ON (TSE:9514) E10: 円0.00 (As of Dec. 2025)


TSE:9514 EF-ON Inc TSE:9514
71 GF Score
Price 円327.00
GF Value 円497.99
Valuation Possible Value Trap
! 6 Warning Signs
View Full Analysis

What is EF-ON E10?

EF-ON TSE:9514 +1.24% 71 E10 is 円0.00 as of Dec. 2025. GuruFocus rates TSE:9514 with a GF Score™ of 71/100 and a GF Value™ of 円497.99 (Possible Value Trap). The stock has 6 warning signs 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.

EF-ON's adjusted earnings per share data for the three months ended in Dec. 2025 was 円0.000. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円0.00 for the trailing ten years ended in Dec. 2025.

During the past 12 months, EF-ON's average E10 Growth Rate was -100.00% per year. During the past 3 years, the average E10 Growth Rate was -0.20% per year. During the past 5 years, the average E10 Growth Rate was 5.40% 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 EF-ON was 61.40% per year. The lowest was -0.20% per year. And the median was 7.85% per year.

As of today (2026-07-13), EF-ON's current stock price is 円327.00. EF-ON's E10 for the quarter that ended in Dec. 2025 was 円0.00. EF-ON's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of EF-ON was 48.72. The lowest was 4.18. And the median was 7.55.


EF-ON  (TSE:9514) 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.

During the past 13 years, the highest Shiller P/E Ratio of EF-ON was 48.72. The lowest was 4.18. And the median was 7.55.


Be Aware

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


EF-ON E10 Related Terms


EF-ON E10 Historical Data

* Premium members only.

The historical data trend for EF-ON'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.

EF-ON E10 Chart

EF-ON Annual Data
Trend Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 71.18 75.48 80.69 74.68 75.12

EF-ON Quarterly Data
Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Dec24 Mar25 Jun25 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 0.00 75.80 75.12 0.00 0.00

EF-ON E10 Competitor Comparison

For the Utilities - Renewable subindustry, EF-ON'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.


EF-ON Shiller PE Ratio vs Utilities - Independent Power Producers Industry

For the Utilities - Independent Power Producers industry and Utilities sector, EF-ON's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where EF-ON's Shiller PE Ratio falls into.


TSE:9514
71GF Score
EF-ON Inc TSE:9514
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

EF-ON 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, EF-ON'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)
=0/113.0000*113.0000
=0.000

Current CPI (Dec. 2025) = 113.0000.

EF-ON Quarterly Data

per share eps CPI Adj_EPS
201509 11.733 98.500 13.460
201512 10.883 98.100 12.536
201603 12.800 97.900 14.774
201606 53.475 98.100 61.597
201609 13.592 98.000 15.672
201612 35.700 98.400 40.997
201703 19.258 98.100 22.183
201706 25.595 98.500 29.363
201709 30.650 98.800 35.055
201712 26.030 99.400 29.591
201803 26.150 99.200 29.788
201806 26.360 99.200 30.027
201809 28.070 99.900 31.751
201812 15.760 99.700 17.862
201903 24.170 99.700 27.394
201906 28.030 99.800 31.737
201909 16.310 100.100 18.412
201912 16.840 100.500 18.935
202003 28.250 100.300 31.827
202006 19.780 99.900 22.374
202009 25.600 99.900 28.957
202012 20.410 99.300 23.226
202103 16.268 99.900 18.401
202106 15.060 99.500 17.103
202109 13.960 100.100 15.759
202112 8.412 100.100 9.496
202203 11.323 101.100 12.656
202206 7.679 101.800 8.524
202209 15.930 103.100 17.460
202212 16.230 104.100 17.618
202303 12.845 104.400 13.903
202306 -6.655 105.200 -7.148
202309 4.640 106.200 4.937
202312 9.140 106.800 9.671
202403 -2.716 107.200 -2.863
202406 2.040 108.200 2.130
202412 0.000 110.700 0.000
202503 6.480 111.100 6.591
202506 8.020 111.700 8.113
202512 0.000 113.000 0.000

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 円0.00 mean?
EF-ON (TSE:9514) has a E10 of 円0.00 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on EF-ON and its competitors.
Is EF-ON's E10 too high?
EF-ON's current E10 is 円0.00. Overall, EF-ON has a GF Score™ of 71/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does EF-ON's E10 compare to competitors?
EF-ON's E10 of 円0.00 can be compared against companies in the Utilities - Independent Power Producers 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 an Utilities - Independent Power Producers company?
A good E10 depends on the Utilities - Independent Power Producers 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 EF-ON and its competitors. EF-ON's current E10 is 円0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is EF-ON stock overvalued right now?
Based on GuruFocus' analysis, EF-ON (TSE:9514) is currently considered Possible Value Trap. The stock's GF Value™ is 円497.99, compared to a current price of 円327.00 — trading 34.3% below its estimated fair value. The current E10 is 円0.00. EF-ON's overall GF Score™ is 71/100 with 6 warning signs 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 EF-ON (TSE:9514), the current E10 is 円0.00 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 EF-ON (TSE:9514) Overvalued in 2026?

Based on GuruFocus' analysis, EF-ON stock appears to be undervalued. The current stock price of 円327.00 is trading 34.3% below its estimated GF Value™ of 円497.99. GuruFocus considers EF-ON to be Possible Value Trap.

Key valuation signals for TSE:9514:

  • E10: 円0.00
  • GF Value™: 円497.99 vs. price of 円327.00 (34.3% below fair value)
  • GF Score™: 71/100 with 6 warning signs

No single metric tells the full story. See the TSE:9514 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


EF-ON Business Description

Address 1-9-2 Marunouchi, 17tth Floor, Gran Tokyo South Tower, Chiyoda-ku, Tokyo, JPN, 100-6617
EF-ON Inc is an energy service company. It operates through two business segments. The Energy Conservation Support Services segment is involved in the investigation and diagnostication of the energy usage for corporation customers, as well as the design, construction and operation of energy conservation facilities and systems. The Biomass Power Generation segment is engaged in the development, construction and operation of new energy power plants.
71GF Score

Get the complete analysis for TSE:9514

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

円327.00
Price
円497.99
GF Value