Tokyo Board Industries Co (TSE:7815) E10: 円-135.63 (As of Sep. 2025)

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Director of Data and Quant Analytics at GuruFocus
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TSE:7815 Tokyo Board Industries Co Ltd TSE:7815
23 GF Score
Price 円366.00
! 5 Warning Signs
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What is Tokyo Board Industries Co E10?

Tokyo Board Industries Co TSE:7815 23 E10 is 円-135.63 as of Sep. 2025. GuruFocus rates TSE:7815 with a GF Score™ of 23/100. 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.

Tokyo Board Industries Co's adjusted earnings per share data for the three months ended in Sep. 2025 was 円-26.280. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円-135.63 for the trailing ten years ended in Sep. 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 (2026-07-16), Tokyo Board Industries Co's current stock price is 円366.00. Tokyo Board Industries Co's E10 for the quarter that ended in Sep. 2025 was 円-135.63. Tokyo Board Industries Co's Shiller PE Ratio of today is .


Tokyo Board Industries Co  (TSE:7815) 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.


Be Aware

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


Tokyo Board Industries Co E10 Related Terms


Tokyo Board Industries Co E10 Historical Data

* Premium members only.

The historical data trend for Tokyo Board Industries 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 Board Industries Co E10 Chart

Tokyo Board Industries Co Annual Data
Trend Mar15 Mar16 Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Tokyo Board Industries Co Quarterly Data
Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Mar25 Jun25 Sep25 May26
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 -104.42 0.00 -124.43 -135.63 0.00

TSE:7815 vs SSD, UFPI, BCC: E10 Comparison

For the Lumber & Wood Production subindustry, Tokyo Board Industries 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 Board Industries Co Shiller PE Ratio vs Forest Products Industry

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

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


TSE:7815
23GF Score
Tokyo Board Industries Co Ltd TSE:7815
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
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Tokyo Board Industries 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 Board Industries Co's adjusted earnings per share data for the three months ended in Sep. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Sep. 2025 (Change)*Current CPI (Sep. 2025)
=-26.28/112.0000*112.0000
=-26.280

Current CPI (Sep. 2025) = 112.0000.

Tokyo Board Industries Co Quarterly Data

per share eps CPI Adj_EPS
201509 31.938 98.500 36.315
201512 70.690 98.100 80.706
201603 25.665 97.900 29.361
201606 16.590 98.100 18.941
201609 0.580 98.000 0.663
201612 46.060 98.400 52.426
201703 21.669 98.100 24.739
201706 36.590 98.500 41.605
201709 19.126 98.800 21.681
201712 -216.250 99.400 -243.662
201803 -386.958 99.200 -436.888
201806 -350.700 99.200 -395.952
201809 -298.570 99.900 -334.733
201812 -198.754 99.700 -223.274
201903 885.369 99.700 994.597
201906 -248.360 99.800 -278.721
201909 4.315 100.100 4.828
201912 -286.928 100.500 -319.761
202003 1,168.421 100.300 1,304.717
202006 -303.750 99.900 -340.541
202009 -284.400 99.900 -318.847
202012 91.918 99.300 103.674
202103 -105.070 99.900 -117.796
202106 -154.700 99.500 -174.135
202109 -278.526 100.100 -311.637
202112 -128.000 100.100 -143.217
202203 89.020 101.100 98.618
202206 44.710 101.800 49.190
202209 -22.411 103.100 -24.346
202212 12.330 104.100 13.266
202303 -230.557 104.400 -247.341
202306 -97.090 105.200 -103.366
202309 -115.700 106.200 -122.019
202312 -49.523 106.800 -51.934
202403 -106.940 107.200 -111.728
202406 15.630 108.200 16.179
202409 111.710 108.900 114.890
202503 0.000 111.100 0.000
202506 -2.590 111.700 -2.597
202509 -26.280 112.000 -26.280

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-135.63 mean?
Tokyo Board Industries Co (TSE:7815) has a E10 of 円-135.63 as of Sep. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Tokyo Board Industries Co and its competitors.
Is Tokyo Board Industries Co's E10 too high?
Tokyo Board Industries Co's current E10 is 円-135.63. Overall, Tokyo Board Industries Co has a GF Score™ of 23/100, reflecting its overall financial health beyond just this single metric.
How does Tokyo Board Industries Co's E10 compare to SSD and UFPI?
Tokyo Board Industries Co's E10 of 円-135.63 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 Tokyo Board Industries Co and its competitors. Tokyo Board Industries Co's current E10 is 円-135.63. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tokyo Board Industries Co stock overvalued right now?
Tokyo Board Industries Co (TSE:7815) has a current E10 of 円-135.63. The current E10 is 円-135.63. Tokyo Board Industries Co's overall GF Score™ is 23/100 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 Tokyo Board Industries Co (TSE:7815), the current E10 is 円-135.63 as of Sep. 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.

Tokyo Board Industries Co Business Description

Address Shinkiba 2-11-1, Koto-ku, Tokyo, JPN, 136-0082
Tokyo Board Industries Co Ltd is engaged in the manufacture and sale of particleboard. Its operating segments include Particle board; Waste collection, transportation & processing; and Others.
23GF Score

Get the complete analysis for TSE:7815

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

円366.00
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