K&O Energy Group (TSE:1663) E10: 円82.03 (As of Dec. 2025)

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TSE:1663 K&O Energy Group Inc TSE:1663
71 GF Score
Price 円1,800.00
GF Value 円1,424.27
Valuation Modestly Overvalued
! 1 Warning Sign
View Full Analysis

What is K&O Energy Group E10?

K&O Energy Group TSE:1663 +0.06% 71 E10 is 円82.03 as of Dec. 2025. GuruFocus rates TSE:1663 with a GF Score™ of 71/100 and a GF Value™ of 円1,424.27 (Modestly 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.

K&O Energy Group's adjusted earnings per share data for the three months ended in Dec. 2025 was 円28.285. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円82.03 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 (2026-08-09), K&O Energy Group's current stock price is 円1800.00. K&O Energy Group's E10 for the quarter that ended in Dec. 2025 was 円82.03. K&O Energy Group's Shiller PE Ratio of today is 21.94.

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 22.50.


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
=1800.00/82.03
=21.94

* 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 22.50.


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 76.07 0.00 82.03

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 77.42 78.47 79.41 82.03 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
71GF 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)
=28.285/113.0000*113.0000
=28.285

Current CPI (Dec. 2025) = 113.0000.

K&O Energy Group Quarterly Data

per share eps CPI Adj_EPS
201512 15.255 98.100 17.572
201603 23.715 97.900 27.373
201606 11.355 98.100 13.080
201609 2.180 98.000 2.514
201612 6.340 98.400 7.281
201703 21.160 98.100 24.374
201706 10.945 98.500 12.556
201709 3.670 98.800 4.197
201712 8.030 99.400 9.129
201803 24.175 99.200 27.538
201806 7.355 99.200 8.378
201809 2.515 99.900 2.845
201812 6.830 99.700 7.741
201903 25.045 99.700 28.386
201906 9.200 99.800 10.417
201909 11.270 100.100 12.722
201912 4.630 100.500 5.206
202003 22.725 100.300 25.602
202006 15.730 99.900 17.793
202009 9.660 99.900 10.927
202012 5.035 99.300 5.730
202103 25.880 99.900 29.274
202106 10.670 99.500 12.118
202109 7.970 100.100 8.997
202112 8.735 100.100 9.861
202203 25.140 101.100 28.099
202206 23.235 101.800 25.791
202209 18.880 103.100 20.693
202212 21.875 104.100 23.745
202303 31.685 104.400 34.295
202306 31.425 105.200 33.755
202309 26.595 106.200 28.298
202312 31.080 106.800 32.884
202403 31.595 107.200 33.304
202406 37.500 108.200 39.164
202412 0.000 110.700 0.000
202503 60.260 111.100 61.291
202506 42.365 111.700 42.858
202509 25.515 112.000 25.743
202512 28.285 113.000 28.285

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82.03 mean?
K&O Energy Group (TSE:1663) has a E10 of 円82.03 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82.03. Overall, K&O Energy Group has a GF Score™ of 71/100 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82.03 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82.03. 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1,424.27, compared to a current price of 円1,800.00 — trading 26.4% above its estimated fair value. The current E10 is 円82.03. K&O Energy Group's overall GF Score™ is 71/100 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 K&O Energy Group (TSE:1663), the current E10 is 円82.03 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1,800.00 is trading 26.4% above its estimated GF Value™ of 円1,424.27. GuruFocus considers K&O Energy Group to be Modestly Overvalued.

Key valuation signals for TSE:1663:

  • E10: 円82.03
  • GF Value™: 円1,424.27 vs. price of 円1,800.00 (26.4% above fair value)
  • GF Score™: 71/100 with 1 warning sign

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.
71GF 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1,800.00
Price
円1,424.27
GF Value