TKGSF (Tokyo Gas Co) E10: $1.60 (As of Mar. 2026)


TKGSF Tokyo Gas Co Ltd TKGSF
75 GF Score
Price $39.85
GF Value $31.96
Valuation Modestly Overvalued
! 3 Warning Signs
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What is Tokyo Gas Co E10?

Tokyo Gas Co TKGSF 75 E10 is $1.60 as of Mar. 2026. GuruFocus rates TKGSF with a GF Score™ of 75/100 and a GF Value™ of $31.96 (Modestly Overvalued). 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.

Tokyo Gas Co's adjusted earnings per share data for the three months ended in Mar. 2026 was $1.136. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is $1.60 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Tokyo Gas Co's average E10 Growth Rate was -100.00% 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 Tokyo Gas Co was 15.00% per year. The lowest was 1.10% per year. And the median was 3.30% per year.

As of today (2026-06-25), Tokyo Gas Co's current stock price is $39.85. Tokyo Gas Co's E10 for the quarter that ended in Mar. 2026 was $1.60. Tokyo Gas Co's Shiller PE Ratio of today is 24.91.

During the past 13 years, the highest Shiller PE Ratio of Tokyo Gas Co was 26.99. The lowest was 10.75. And the median was 14.84.


Tokyo Gas Co  (OTCPK:TKGSF) 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.

Tokyo Gas Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=39.85/1.60
=24.91

* 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 Tokyo Gas Co was 26.99. The lowest was 10.75. And the median was 14.84.


Be Aware

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


Tokyo Gas Co E10 Related Terms


Tokyo Gas Co E10 Historical Data

* Premium members only.

The historical data trend for Tokyo Gas 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.

Tokyo Gas Co E10 Chart

Tokyo Gas 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 1.54 1.69 1.60 1.53 1.60

Tokyo Gas 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 1.53 1.77 2.00 1.87 1.60

TKGSF vs ATO, NI: E10 Comparison

For the Utilities - Regulated Gas subindustry, Tokyo Gas 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.


Tokyo Gas Co Shiller PE Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Tokyo Gas Co's Shiller PE Ratio distribution charts can be found below:

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


TKGSF
75GF Score
Tokyo Gas Co Ltd TKGSF
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tokyo Gas 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, Tokyo Gas Co's adjusted earnings per share data for the three months ended in Mar. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=1.136/112.7000*112.7000
=1.136

Current CPI (Mar. 2026) = 112.7000.

Tokyo Gas Co Quarterly Data

per share eps CPI Adj_EPS
201606 0.793 98.100 0.911
201609 -0.272 98.000 -0.313
201612 -0.170 98.400 -0.195
201703 0.685 98.100 0.787
201706 0.549 98.500 0.628
201709 0.081 98.800 0.092
201712 0.318 99.400 0.361
201803 0.550 99.200 0.625
201806 0.756 99.200 0.859
201809 -0.214 99.900 -0.241
201812 0.153 99.700 0.173
201903 0.997 99.700 1.127
201906 0.724 99.800 0.818
201909 -0.139 100.100 -0.156
201912 0.110 100.500 0.123
202003 0.203 100.300 0.228
202006 0.345 99.900 0.389
202009 0.246 99.900 0.278
202012 0.320 99.300 0.363
202103 0.147 99.900 0.166
202106 0.216 99.500 0.245
202109 0.349 100.100 0.393
202112 0.374 100.100 0.421
202203 0.952 101.100 1.061
202206 0.657 101.800 0.727
202209 0.535 103.100 0.585
202212 1.647 104.100 1.783
202303 1.946 104.400 2.101
202306 1.280 105.200 1.371
202309 0.431 106.200 0.457
202312 0.200 106.800 0.211
202403 0.828 107.200 0.870
202406 0.318 108.200 0.331
202409 -0.065 108.900 -0.067
202412 0.345 110.700 0.351
202503 0.660 111.100 0.670
202506 1.954 111.700 1.971
202509 0.567 112.000 0.571
202512 0.695 113.000 0.693
202603 1.136 112.700 1.136

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 $1.60 mean?
Tokyo Gas Co (TKGSF) has a E10 of $1.60 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Tokyo Gas Co and its competitors.
Is Tokyo Gas Co's E10 too high?
Tokyo Gas Co's current E10 is $1.60. Overall, Tokyo Gas Co has a GF Score™ of 75/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tokyo Gas Co's E10 compare to ATO and NI?
Tokyo Gas Co's E10 of $1.60 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 Tokyo Gas Co and its competitors. Tokyo Gas Co's current E10 is $1.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tokyo Gas Co stock overvalued right now?
Based on GuruFocus' analysis, Tokyo Gas Co (TKGSF) is currently considered Modestly Overvalued. The stock's GF Value™ is $31.96, compared to a current price of $39.85 — trading 24.7% above its estimated fair value. The current E10 is $1.60. Tokyo Gas Co's overall GF Score™ is 75/100 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 Tokyo Gas Co (TKGSF), the current E10 is $1.60 as of Mar. 2026. 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 Tokyo Gas Co (TKGSF) Overvalued in 2026?

Based on GuruFocus' analysis, Tokyo Gas Co stock appears to be overvalued. The current stock price of $39.85 is trading 24.7% above its estimated GF Value™ of $31.96. GuruFocus considers Tokyo Gas Co to be Modestly Overvalued.

Key valuation signals for TKGSF:

  • E10: $1.60
  • GF Value™: $31.96 vs. price of $39.85 (24.7% above fair value)
  • GF Score™: 75/100 with 3 warning signs

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


Tokyo Gas Co Business Description

Address 1-5-20 Kaigan, Minato-ku, Tokyo, JPN, 105-8527
Tokyo Gas Co Ltd is a Japanese utility company involved in the production, generation, and supply of natural gas and electricity. Tokyo Gas segments its operations into Gas, Electric Power, Overseas, and Other business units. The company's Gas division generates the vast majority of its total revenue through the supply and sale of natural gas to, namely, the Tokyo metropolitan area and other Japanese urban areas. Tokyo Gas' supply of natural gas is fairly evenly distributed amongst residential, commercial, industrial, and power generation customers. The company's Electric Power business also represents a significant income stream. This division operates a portfolio of cogeneration and natural gas-fired thermal power plants primarily located in the Tokyo area.
75GF Score

Get the complete analysis for TKGSF

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

$39.85
Price
$31.96
GF Value