K&O Energy Group (TSE:1663) E10: 円164.06 (As of Dec. 2025)


TSE:1663 K&O Energy Group Inc TSE:1663
72 GF Score
Price 円3,805.00
GF Value 円2,978.49
Valuation Modestly Overvalued
! 2 Warning Signs
View Full Analysis

What is K&O Energy Group E10?

K&O Energy Group TSE:1663 -0.39% 72 E10 is 円164.06 as of Dec. 2025. GuruFocus rates TSE:1663 with a GF Score™ of 72/100 and a GF Value™ of 円2,978.49 (Modestly Overvalued). The stock has 2 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.

K&O Energy Group's adjusted earnings per share data for the three months ended in Dec. 2025 was 円56.570. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円164.06 for the trailing ten years ended in Dec. 2025.

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 (2026-06-25), K&O Energy Group's current stock price is 円3805.00. K&O Energy Group's E10 for the quarter that ended in Dec. 2025 was 円164.06. K&O Energy Group's Shiller PE Ratio of today is 23.19.

During the past 12 years, the highest Shiller PE Ratio of K&O Energy Group was 33.52. The lowest was 14.60. And the median was 22.73.


K&O Energy Group  (TSE:1663) 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.

K&O Energy Group's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=3805.00/164.06
=23.19

* 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 12 years, the highest Shiller P/E Ratio of K&O Energy Group was 33.52. The lowest was 14.60. And the median was 22.73.


Be Aware

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


K&O Energy Group E10 Related Terms


K&O Energy Group E10 Historical Data

* Premium members only.

The historical data trend for K&O Energy Group'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.

K&O Energy Group E10 Chart

K&O Energy Group 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 0.00 152.14 0.00 164.06

K&O Energy Group Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 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 154.85 156.95 158.81 164.06 0.00

TSE:1663 vs ATO, NI: E10 Comparison

For the Utilities - Regulated Gas subindustry, K&O Energy Group'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.


K&O Energy Group Shiller PE Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, K&O Energy Group's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where K&O Energy Group's Shiller PE Ratio falls into.


TSE:1663
72GF Score
K&O Energy Group Inc TSE:1663
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

K&O Energy Group 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, K&O Energy Group'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)
=56.57/113.0000*113.0000
=56.570

Current CPI (Dec. 2025) = 113.0000.

K&O Energy Group Quarterly Data

per share eps CPI Adj_EPS
201512 30.510 98.100 35.144
201603 47.430 97.900 54.746
201606 22.710 98.100 26.159
201609 4.360 98.000 5.027
201612 12.680 98.400 14.561
201703 42.320 98.100 48.748
201706 21.890 98.500 25.112
201709 7.340 98.800 8.395
201712 16.060 99.400 18.257
201803 48.350 99.200 55.076
201806 14.710 99.200 16.756
201809 5.030 99.900 5.690
201812 13.660 99.700 15.482
201903 50.090 99.700 56.772
201906 18.400 99.800 20.834
201909 22.540 100.100 25.445
201912 9.260 100.500 10.412
202003 45.450 100.300 51.205
202006 31.460 99.900 35.585
202009 19.320 99.900 21.853
202012 10.070 99.300 11.459
202103 51.760 99.900 58.547
202106 21.340 99.500 24.235
202109 15.940 100.100 17.994
202112 17.470 100.100 19.721
202203 50.280 101.100 56.198
202206 46.470 101.800 51.583
202209 37.760 103.100 41.386
202212 43.750 104.100 47.490
202303 63.370 104.400 68.590
202306 62.850 105.200 67.510
202309 53.190 106.200 56.596
202312 62.160 106.800 65.769
202403 63.190 107.200 66.609
202406 75.000 108.200 78.327
202412 0.000 110.700 0.000
202503 120.520 111.100 122.581
202506 84.730 111.700 85.716
202509 51.030 112.000 51.486
202512 56.570 113.000 56.570

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164.06 mean?
K&O Energy Group (TSE:1663) has a E10 of 円164.06 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on K&O Energy Group and its competitors.
Is K&O Energy Group's E10 too high?
K&O Energy Group's current E10 is 円164.06. Overall, K&O Energy Group has a GF Score™ of 72/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does K&O Energy Group's E10 compare to ATO and NI?
K&O Energy Group's E10 of 円164.06 can be compared against companies in the Utilities - Regulated 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 - Regulated company?
A good E10 depends on the Utilities - Regulated 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 K&O Energy Group and its competitors. K&O Energy Group's current E10 is 円164.06. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is K&O Energy Group stock overvalued right now?
Based on GuruFocus' analysis, K&O Energy Group (TSE:1663) is currently considered Modestly Overvalued. The stock's GF Value™ is 円2,978.49, compared to a current price of 円3,805.00 — trading 27.7% above its estimated fair value. The current E10 is 円164.06. K&O Energy Group's overall GF Score™ is 72/100 with 2 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 K&O Energy Group (TSE:1663), the current E10 is 円164.06 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 K&O Energy Group (TSE:1663) Overvalued in 2026?

Based on GuruFocus' analysis, K&O Energy Group stock appears to be overvalued. The current stock price of 円3,805.00 is trading 27.7% above its estimated GF Value™ of 円2,978.49. GuruFocus considers K&O Energy Group to be Modestly Overvalued.

Key valuation signals for TSE:1663:

  • E10: 円164.06
  • GF Value™: 円2,978.49 vs. price of 円3,805.00 (27.7% above fair value)
  • GF Score™: 72/100 with 2 warning signs

No single metric tells the full story. See the TSE:1663 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


K&O Energy Group Business Description

Address 2-1-1 Nihonbashi-Muromachi, Chuo-ku, Tokyo, JPN, 103-0022
K&O Energy Group Inc through its subsidiaries is engaged in gas business and iodine business in Japan.
72GF Score

Get the complete analysis for TSE:1663

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

円3,805.00
Price
円2,978.49
GF Value