Tomoegawa (TSE:3878) E10: 円15.14 (As of Mar. 2026)

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Director of Data and Quant Analytics at GuruFocus
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TSE:3878 Tomoegawa Corp TSE:3878
63 GF Score
Price 円888.00
GF Value 円829.28
Valuation Fairly Valued
! 5 Warning Signs
View Full Analysis

What is Tomoegawa E10?

Tomoegawa TSE:3878 -1.00% 63 E10 is 円15.14 as of Mar. 2026. GuruFocus rates TSE:3878 with a GF Score™ of 63/100 and a GF Value™ of 円829.28 (Fairly Valued). The stock has 5 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.

Tomoegawa's adjusted earnings per share data for the three months ended in Mar. 2026 was 円12.680. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円15.14 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Tomoegawa's average E10 Growth Rate was 169.30% per year. During the past 3 years, the average E10 Growth Rate was 77.30% 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 Tomoegawa was 77.30% per year. The lowest was -19.70% per year. And the median was 41.40% per year.

As of today (2026-08-15), Tomoegawa's current stock price is 円888.00. Tomoegawa's E10 for the quarter that ended in Mar. 2026 was 円15.14. Tomoegawa's Shiller PE Ratio of today is 58.65.

During the past 13 years, the highest Shiller PE Ratio of Tomoegawa was 316.46. The lowest was 23.11. And the median was 114.04.


Tomoegawa  (TSE:3878) 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.

Tomoegawa's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=888.00/15.14
=58.65

* 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 Tomoegawa was 316.46. The lowest was 23.11. And the median was 114.04.


Be Aware

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


Tomoegawa E10 Related Terms


Tomoegawa E10 Historical Data

* Premium members only.

The historical data trend for Tomoegawa'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.

Tomoegawa E10 Chart

Tomoegawa 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 -5.10 5.87 5.03 0.00 15.14

Tomoegawa Quarterly Data
Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Sep24 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 3.90 11.01 13.49 15.14

Tomoegawa E10 Competitor Comparison

For the Paper & Paper Products subindustry, Tomoegawa'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.


Tomoegawa Shiller PE Ratio vs Forest Products Industry

For the Forest Products industry and Basic Materials sector, Tomoegawa's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Tomoegawa's Shiller PE Ratio falls into.


TSE:3878
63GF Score
Tomoegawa Corp TSE:3878
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Tomoegawa 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, Tomoegawa'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)
=12.68/112.7000*112.7000
=12.680

Current CPI (Mar. 2026) = 112.7000.

Tomoegawa Quarterly Data

per share eps CPI Adj_EPS
201512 -33.150 98.100 -38.084
201603 -57.600 97.900 -66.308
201606 -28.000 98.100 -32.167
201609 -8.431 98.000 -9.696
201612 8.600 98.400 9.850
201703 52.478 98.100 60.288
201706 18.700 98.500 21.396
201709 24.718 98.800 28.196
201712 23.780 99.400 26.962
201803 -26.683 99.200 -30.314
201806 9.800 99.200 11.134
201809 -1.390 99.900 -1.568
201812 -19.870 99.700 -22.461
201903 -189.264 99.700 -213.942
201906 -9.640 99.800 -10.886
201909 -8.495 100.100 -9.564
201912 -7.902 100.500 -8.861
202003 76.410 100.300 85.857
202006 -64.510 99.900 -72.776
202009 -102.773 99.900 -115.941
202012 19.576 99.300 22.218
202103 32.266 99.900 36.400
202106 41.220 99.500 46.688
202109 40.820 100.100 45.958
202112 62.000 100.100 69.804
202203 8.670 101.100 9.665
202206 108.490 101.800 120.106
202209 7.700 103.100 8.417
202212 45.210 104.100 48.945
202303 -28.733 104.400 -31.017
202306 31.770 105.200 34.035
202309 8.678 106.200 9.209
202312 2.170 106.800 2.290
202403 13.490 107.200 14.182
202409 0.000 108.900 0.000
202503 0.000 111.100 0.000
202506 30.060 111.700 30.329
202509 27.190 112.000 27.360
202512 25.470 113.000 25.402
202603 12.680 112.700 12.680

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15.14 mean?
Tomoegawa (TSE:3878) has a E10 of 円15.14 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Tomoegawa and its competitors.
Is Tomoegawa's E10 too high?
Tomoegawa's current E10 is 円15.14. Overall, Tomoegawa has a GF Score™ of 63/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Tomoegawa's E10 compare to competitors?
Tomoegawa's E10 of 円15.14 can be compared against companies in the Forest 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 a Forest Products company?
A good E10 depends on the Forest 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 Tomoegawa and its competitors. Tomoegawa's current E10 is 円15.14. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tomoegawa stock overvalued right now?
Based on GuruFocus' analysis, Tomoegawa (TSE:3878) is currently considered Fairly Valued. The stock's GF Value™ is 円829.28, compared to a current price of 円888.00 — trading 7.1% above its estimated fair value. The current E10 is 円15.14. Tomoegawa's overall GF Score™ is 63/100 with 5 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 Tomoegawa (TSE:3878), the current E10 is 円15.14 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 Tomoegawa (TSE:3878) Overvalued in 2026?

Based on GuruFocus' analysis, Tomoegawa stock appears to be overvalued. The current stock price of 円888.00 is trading 7.1% above its estimated GF Value™ of 円829.28. GuruFocus considers Tomoegawa to be Fairly Valued.

Key valuation signals for TSE:3878:

  • E10: 円15.14
  • GF Value™: 円829.28 vs. price of 円888.00 (7.1% above fair value)
  • GF Score™: 63/100 with 5 warning signs

No single metric tells the full story. See the TSE:3878 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Tomoegawa Business Description

Address 2-1-3 Kyobashi, 7th Floor, KYOBASHI Trust Tower, Chuo-ku, Tokyo, JPN, 104-8335
Tomoegawa Corp manufactures, processes, and sells electronics parts, display parts, fine particles, functional sheets, and specialty paper products. It offers clear hard coat films for screen protection of mobile devices; adhesive tapes for circuit boards; and lids for hermetic seal package, as well as electrostatic chuck for LSI and LCD manufacturing process. The company also provides display component materials; and display film products. It offers fine particle materials, such as magnetic toners, non-magnetic toners, full color toners; information printing materials comprising inkjet; and special fiber sheets, including stainless fiber sheets, fluorine fiber sheets. Further, it provides ultra-lightweight printing papers; and insulating papers, conductive papers, absorbing papers.
63GF Score

Get the complete analysis for TSE:3878

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

円888.00
Price
円829.28
GF Value