Cosmo Energy Holdings Co (TSE:5021) E10: 円366.54 (As of Dec. 2025)

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TSE:5021 Cosmo Energy Holdings Co Ltd TSE:5021
73 GF Score
Price 円3,753.00
GF Value 円3,683.05
Valuation Fairly Valued
! 3 Warning Signs
View Full Analysis

What is Cosmo Energy Holdings Co E10?

Cosmo Energy Holdings Co TSE:5021 -0.87% 73 E10 is 円366.54 as of Dec. 2025. GuruFocus rates TSE:5021 with a GF Score™ of 73/100 and a GF Value™ of 円3,683.05 (Fairly Valued). The stock has 3 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.

Cosmo Energy Holdings Co's adjusted earnings per share data for the three months ended in Dec. 2025 was 円68.680. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円366.54 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 (2026-08-05), Cosmo Energy Holdings Co's current stock price is 円3753.00. Cosmo Energy Holdings Co's E10 for the quarter that ended in Dec. 2025 was 円366.54. Cosmo Energy Holdings Co's Shiller PE Ratio of today is 10.24.

During the past 11 years, the highest Shiller PE Ratio of Cosmo Energy Holdings Co was 13.14. The lowest was 9.42. And the median was 10.92.


Cosmo Energy Holdings Co  (TSE:5021) 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.

Cosmo Energy Holdings Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=3753.00/366.54
=10.24

* 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 11 years, the highest Shiller P/E Ratio of Cosmo Energy Holdings Co was 13.14. The lowest was 9.42. And the median was 10.92.


Be Aware

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


Cosmo Energy Holdings Co E10 Related Terms


Cosmo Energy Holdings Co E10 Historical Data

* Premium members only.

The historical data trend for Cosmo Energy Holdings 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.

Cosmo Energy Holdings Co E10 Chart

Cosmo Energy Holdings Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Cosmo Energy Holdings 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 0.00 0.00 365.63 366.54 0.00

TSE:5021 vs XOM, CVX: E10 Comparison

For the Oil & Gas Integrated subindustry, Cosmo Energy Holdings 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.


Cosmo Energy Holdings Co Shiller PE Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Cosmo Energy Holdings Co's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Cosmo Energy Holdings Co's Shiller PE Ratio falls into.


TSE:5021
73GF Score
Cosmo Energy Holdings Co Ltd TSE:5021
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Cosmo Energy Holdings 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, Cosmo Energy Holdings 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)
=68.68/113.0000*113.0000
=68.680

Current CPI (Dec. 2025) = 113.0000.

Cosmo Energy Holdings Co Quarterly Data

per share eps CPI Adj_EPS
201603 -10.075 97.900 -11.629
201606 28.445 98.100 32.765
201609 -2.620 98.000 -3.021
201612 112.698 98.400 129.419
201703 177.122 98.100 204.024
201706 27.790 98.500 31.881
201709 105.430 98.800 120.583
201712 156.510 99.400 177.924
201803 143.163 99.200 163.079
201806 122.145 99.200 139.137
201809 118.020 99.900 133.496
201812 -67.075 99.700 -76.023
201903 127.415 99.700 144.412
201906 73.980 99.800 83.765
201909 0.620 100.100 0.700
201912 24.745 100.500 27.823
202003 -285.549 100.300 -321.705
202006 -155.130 99.900 -175.472
202009 149.384 99.900 168.973
202012 103.516 99.300 117.798
202103 347.940 99.900 393.566
202106 139.740 99.500 158.700
202109 120.425 100.100 135.944
202112 139.535 100.100 157.517
202203 295.000 101.100 329.723
202206 391.065 101.800 434.090
202209 95.835 103.100 105.037
202212 -207.175 104.100 -224.887
202303 29.825 104.400 32.282
202306 -41.525 105.200 -44.604
202309 309.575 106.200 329.397
202312 -6.720 106.800 -7.110
202403 206.759 107.200 217.946
202406 141.175 108.200 147.438
202409 -22.595 108.900 -23.446
202412 131.700 110.700 134.436
202503 86.110 111.100 87.583
202506 -12.330 111.700 -12.474
202509 156.260 112.000 157.655
202512 68.680 113.000 68.680

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366.54 mean?
Cosmo Energy Holdings Co (TSE:5021) has a E10 of 円366.54 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Cosmo Energy Holdings Co and its competitors.
Is Cosmo Energy Holdings Co's E10 too high?
Cosmo Energy Holdings Co's current E10 is 円366.54. Overall, Cosmo Energy Holdings Co has a GF Score™ of 73/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Cosmo Energy Holdings Co's E10 compare to XOM and CVX?
Cosmo Energy Holdings Co's E10 of 円366.54 can be compared against companies in the Oil & Gas 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 Oil & Gas company?
A good E10 depends on the Oil & Gas 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 Cosmo Energy Holdings Co and its competitors. Cosmo Energy Holdings Co's current E10 is 円366.54. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Cosmo Energy Holdings Co stock overvalued right now?
Based on GuruFocus' analysis, Cosmo Energy Holdings Co (TSE:5021) is currently considered Fairly Valued. The stock's GF Value™ is 円3,683.05, compared to a current price of 円3,753.00 — trading 1.9% above its estimated fair value. The current E10 is 円366.54. Cosmo Energy Holdings Co's overall GF Score™ is 73/100 with 3 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 Cosmo Energy Holdings Co (TSE:5021), the current E10 is 円366.54 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 Cosmo Energy Holdings Co (TSE:5021) Overvalued in 2026?

Based on GuruFocus' analysis, Cosmo Energy Holdings Co stock appears to be overvalued. The current stock price of 円3,753.00 is trading 1.9% above its estimated GF Value™ of 円3,683.05. GuruFocus considers Cosmo Energy Holdings Co to be Fairly Valued.

Key valuation signals for TSE:5021:

  • E10: 円366.54
  • GF Value™: 円3,683.05 vs. price of 円3,753.00 (1.9% above fair value)
  • GF Score™: 73/100 with 3 warning signs

No single metric tells the full story. See the TSE:5021 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Cosmo Energy Holdings Co Business Description

Industry EnergyOil & Gas
Other Exchanges 2LW:Germany
Address 1-1-1 Shibaura, Minato-ku, Tokyo, JPN, 105-0023
Cosmo Energy Holdings Co Ltd is engaged in the oil, petrochemical, oil exploration and development, and renewable energy businesses. The group operates through four reportable segments: the Petroleum Business, which produces and sells gasoline, naphtha, kerosene, diesel, heavy oil, crude oil, lubricants, LPG, asphalt, and related products; the Petrochemical Business, which manufactures and sells petrochemical products such as ethylene, mixed xylene, paraxylene, benzene, toluene, and solvents; the Oil E&P Business, which develops, produces, and sells crude oil; and the Renewable Energy Business, which generates and supplies electricity produced from wind power. It generates the majority of its revenue from the Petroleum business segment.
73GF Score

Get the complete analysis for TSE:5021

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

円3,753.00
Price
円3,683.05
GF Value