Toyo Tanso Co (TSE:5310) E10: 円240.33 (As of Dec. 2025)


TSE:5310 Toyo Tanso Co Ltd TSE:5310
84 GF Score
Price 円7,460.00
GF Value 円4,742.01
Valuation Significantly Overvalued
! 3 Warning Signs
View Full Analysis

What is Toyo Tanso Co E10?

Toyo Tanso Co TSE:5310 +0.13% 84 E10 is 円240.33 as of Dec. 2025. GuruFocus rates TSE:5310 with a GF Score™ of 84/100 and a GF Value™ of 円4,742.01 (Significantly 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.

Toyo Tanso Co's adjusted earnings per share data for the three months ended in Dec. 2025 was 円44.520. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円240.33 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Toyo Tanso Co's average E10 Growth Rate was 13.40% per year. During the past 3 years, the average E10 Growth Rate was 25.10% per year. During the past 5 years, the average E10 Growth Rate was 20.60% 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 Toyo Tanso Co was 26.40% per year. The lowest was 3.50% per year. And the median was 13.25% per year.

As of today (2026-06-30), Toyo Tanso Co's current stock price is 円7460.00. Toyo Tanso Co's E10 for the quarter that ended in Dec. 2025 was 円240.33. Toyo Tanso Co's Shiller PE Ratio of today is 31.04.

During the past 13 years, the highest Shiller PE Ratio of Toyo Tanso Co was 53.15. The lowest was 11.61. And the median was 26.35.


Toyo Tanso Co  (TSE:5310) 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.

Toyo Tanso Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=7460.00/240.33
=31.04

* 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 Toyo Tanso Co was 53.15. The lowest was 11.61. And the median was 26.35.


Be Aware

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


Toyo Tanso Co E10 Related Terms


Toyo Tanso Co E10 Historical Data

* Premium members only.

The historical data trend for Toyo Tanso 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.

Toyo Tanso Co E10 Chart

Toyo Tanso Co 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 104.89 122.71 164.73 211.84 240.33

Toyo Tanso 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 218.26 224.45 232.92 240.33 0.00

TSE:5310 vs VRT, BE: E10 Comparison

For the Electrical Equipment & Parts subindustry, Toyo Tanso 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.


Toyo Tanso Co Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Toyo Tanso Co's Shiller PE Ratio distribution charts can be found below:

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


TSE:5310
84GF Score
Toyo Tanso Co Ltd TSE:5310
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Toyo Tanso 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, Toyo Tanso 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)
=44.52/113.0000*113.0000
=44.520

Current CPI (Dec. 2025) = 113.0000.

Toyo Tanso Co Quarterly Data

per share eps CPI Adj_EPS
201603 -4.610 97.900 -5.321
201606 16.206 98.100 18.667
201609 -1.640 98.000 -1.891
201612 3.690 98.400 4.238
201703 27.130 98.100 31.251
201706 27.300 98.500 31.319
201709 40.860 98.800 46.733
201712 49.960 99.400 56.796
201803 80.630 99.200 91.847
201806 65.240 99.200 74.316
201809 64.314 99.900 72.748
201812 24.050 99.700 27.258
201903 64.500 99.700 73.104
201906 45.330 99.800 51.326
201909 40.040 100.100 45.200
201912 -9.488 100.500 -10.668
202003 27.110 100.300 30.543
202006 42.579 99.900 48.162
202009 29.753 99.900 33.655
202012 27.490 99.300 31.283
202103 33.060 99.900 37.395
202106 53.920 99.500 61.236
202109 64.083 100.100 72.341
202112 61.843 100.100 69.813
202203 57.370 101.100 64.123
202206 64.894 101.800 72.034
202209 75.718 103.100 82.989
202212 49.060 104.100 53.254
202303 87.440 104.400 94.643
202306 109.410 105.200 117.522
202309 80.200 106.200 85.335
202312 80.860 106.800 85.554
202403 113.510 107.200 119.651
202406 132.365 108.200 138.237
202409 96.910 108.900 100.559
202412 132.150 110.700 134.896
202503 60.880 111.100 61.921
202506 66.970 111.700 67.749
202509 88.210 112.000 88.998
202512 44.520 113.000 44.520

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240.33 mean?
Toyo Tanso Co (TSE:5310) has a E10 of 円240.33 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Toyo Tanso Co and its competitors.
Is Toyo Tanso Co's E10 too high?
Toyo Tanso Co's current E10 is 円240.33. Overall, Toyo Tanso Co has a GF Score™ of 84/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Toyo Tanso Co's E10 compare to VRT and BE?
Toyo Tanso Co's E10 of 円240.33 can be compared against companies in the Industrial Products 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 Industrial Products company?
A good E10 depends on the Industrial Products 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 Toyo Tanso Co and its competitors. Toyo Tanso Co's current E10 is 円240.33. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Toyo Tanso Co stock overvalued right now?
Based on GuruFocus' analysis, Toyo Tanso Co (TSE:5310) is currently considered Significantly Overvalued. The stock's GF Value™ is 円4,742.01, compared to a current price of 円7,460.00 — trading 57.3% above its estimated fair value. The current E10 is 円240.33. Toyo Tanso Co's overall GF Score™ is 84/100 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 Toyo Tanso Co (TSE:5310), the current E10 is 円240.33 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 Toyo Tanso Co (TSE:5310) Overvalued in 2026?

Based on GuruFocus' analysis, Toyo Tanso Co stock appears to be overvalued. The current stock price of 円7,460.00 is trading 57.3% above its estimated GF Value™ of 円4,742.01. GuruFocus considers Toyo Tanso Co to be Significantly Overvalued.

Key valuation signals for TSE:5310:

  • E10: 円240.33
  • GF Value™: 円4,742.01 vs. price of 円7,460.00 (57.3% above fair value)
  • GF Score™: 84/100 with 3 warning signs

No single metric tells the full story. See the TSE:5310 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Toyo Tanso Co Business Description

Other Exchanges T9T:Germany
Address Nishiyodogawa ku Takeshima 5-7-12, Osaka, JPN, 555-0011
Toyo Tanso Co Ltd is a Japanese corporation engaged in the manufacture of electronic materials such as special graphite and other carbon products which are employed in processes like single crystal silicon pulling furnaces, heaters, and metal-organic chemical vapor deposition devices. Its portfolio of carbon products includes bearings for pumps and compressors, sealing materials, pantograph sliders, automobile parts, carbon brushes and motor brushes. Toyo attends to various industries ranging from the living space to advanced aerospace and medical fields such as aerospace and medical care, especially solar cells, nuclear power and other environmental and energy fields.
84GF Score

Get the complete analysis for TSE:5310

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

円7,460.00
Price
円4,742.01
GF Value