Koken (TSE:7963) E10: 円 (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

TSE:7963 Koken Ltd TSE:7963
70 GF Score
Price 円1,792.00
GF Value 円1,889.06
Valuation Fairly Valued
! 1 Warning Sign
View Full Analysis

What is Koken E10?

Koken TSE:7963 -0.22% 70 E10 is 円 as of Jun. 2026. GuruFocus rates TSE:7963 with a GF Score™ of 70/100 and a GF Value™ of 円1,889.06 (Fairly Valued). The stock has 1 warning sign 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.

Koken's adjusted earnings per share data for the three months ended in Jun. 2026 was 円21.492. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is for the trailing ten years ended in Jun. 2026.

During the past 12 months, Koken's average E10 Growth Rate was -100.00% per year. During the past 3 years, the average E10 Growth Rate was 11.70% 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 Koken was 11.70% per year. The lowest was 7.00% per year. And the median was 10.80% per year.

As of today (2026-09-22), Koken's current stock price is 円1792.00. Koken's E10 for the quarter that ended in Jun. 2026 was . Koken's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Koken was 54.09. The lowest was 12.31. And the median was 18.25.


Koken  (TSE:7963) 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.

During the past 13 years, the highest Shiller P/E Ratio of Koken was 54.09. The lowest was 12.31. And the median was 18.25.


Be Aware

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


Koken E10 Related Terms


Koken E10 Historical Data

* Premium members only.

The historical data trend for Koken'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.

Koken E10 Chart

Koken Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
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Koken Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 - - - - -

TSE:7963 vs ABT, SYK, MDT: E10 Comparison

For the Medical Devices subindustry, Koken'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.


Koken Shiller PE Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Koken's Shiller PE Ratio distribution charts can be found below:

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


TSE:7963
70GF Score
Koken Ltd TSE:7963
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Koken 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, Koken's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=21.4919/113.6000*113.6000
=21.492

Current CPI (Jun. 2026) = 113.6000.

Koken Quarterly Data

per share eps CPI Adj_EPS
201609 22.460 98.000 26.035
201612 26.550 98.400 30.651
201703 46.180 98.100 53.477
201706 10.200 98.500 11.764
201709 13.800 98.800 15.867
201712 28.010 99.400 32.011
201803 43.460 99.200 49.769
201806 -1.785 99.200 -2.044
201809 19.278 99.900 21.922
201812 10.599 99.700 12.077
201903 19.589 99.700 22.320
201906 4.119 99.800 4.688
201909 20.641 100.100 23.425
201912 29.859 100.500 33.752
202003 50.819 100.300 57.557
202006 46.927 99.900 53.363
202009 21.394 99.900 24.328
202012 48.195 99.300 55.135
202103 116.909 99.900 132.941
202106 4.342 99.500 4.957
202109 13.379 100.100 15.184
202112 37.641 100.100 42.718
202203 45.469 101.100 51.090
202206 25.820 101.800 28.813
202209 33.820 103.100 37.264
202212 62.780 104.100 68.509
202303 64.616 104.400 70.310
202306 15.941 105.200 17.213
202309 9.487 106.200 10.148
202312 51.836 106.800 55.137
202403 31.684 107.200 33.575
202406 16.612 108.200 17.441
202409 14.344 108.900 14.963
202412 83.390 110.700 85.574
202503 52.696 111.100 53.882
202506 6.790 111.700 6.905
202509 14.362 112.000 14.567
202512 105.918 113.000 106.480
202603 29.401 112.700 29.636
202606 21.492 113.600 21.492

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 mean?
Koken (TSE:7963) has a E10 of 円 as of Jun. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Koken and its competitors.
Is Koken's E10 too high?
Koken's current E10 is 円. Overall, Koken has a GF Score™ of 70/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Koken's E10 compare to ABT and SYK?
Koken's E10 of 円 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good E10 depends on the Medical Devices & Instruments 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 Koken and its competitors. Koken's current E10 is 円. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Koken stock overvalued right now?
Based on GuruFocus' analysis, Koken (TSE:7963) is currently considered Fairly Valued. The stock's GF Value™ is 円1,889.06, compared to a current price of 円1,792.00 — trading 5.1% below its estimated fair value. The current E10 is 円. Koken's overall GF Score™ is 70/100 with 1 warning sign 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 Koken (TSE:7963), the current E10 is 円 as of Jun. 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 Koken (TSE:7963) Overvalued in 2026?

Based on GuruFocus' analysis, Koken stock appears to be undervalued. The current stock price of 円1,792.00 is trading 5.1% below its estimated GF Value™ of 円1,889.06. GuruFocus considers Koken to be Fairly Valued.

Key valuation signals for TSE:7963:

  • E10:
  • GF Value™: 円1,889.06 vs. price of 円1,792.00 (5.1% below fair value)
  • GF Score™: 70/100 with 1 warning sign

No single metric tells the full story. See the TSE:7963 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Koken Business Description

Address 7, Yonbancho, Chiyoda-ku, Tokyo, JPN, 102 8459
Koken Ltd is engaged in the production and sales of occupational and health protective equipment, including particulate respirators, chemical cartridge respirators, and others. It is also involved in the production and sales of environmental quality improvement equipment.
70GF Score

Get the complete analysis for TSE:7963

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

円1,792.00
Price
円1,889.06
GF Value