Media Kobo (TSE:3815) E10: 円-11.57 (As of Feb. 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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
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:3815 Media Kobo Inc TSE:3815
49 GF Score
Price 円429.00
GF Value 円376.55
Valuation Modestly Overvalued
! 5 Warning Signs
View Full Analysis

What is Media Kobo E10?

Media Kobo TSE:3815 +0.47% 49 E10 is 円-11.57 as of Feb. 2026. GuruFocus rates TSE:3815 with a GF Score™ of 49/100 and a GF Value™ of 円376.55 (Modestly Overvalued). 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.

Media Kobo's adjusted earnings per share data for the three months ended in Feb. 2026 was 円-15.000. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円-11.57 for the trailing ten years ended in Feb. 2026.

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 Media Kobo was -23.40% per year. The lowest was -39.50% per year. And the median was -27.90% per year.

As of today (2026-09-02), Media Kobo's current stock price is 円429.00. Media Kobo's E10 for the quarter that ended in Feb. 2026 was 円-11.57. Media Kobo's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Media Kobo was 416.13. The lowest was 15.71. And the median was 36.15.


Media Kobo  (TSE:3815) 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 Media Kobo was 416.13. The lowest was 15.71. And the median was 36.15.


Be Aware

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


Media Kobo E10 Related Terms


Media Kobo E10 Historical Data

* Premium members only.

The historical data trend for Media Kobo'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.

Media Kobo E10 Chart

Media Kobo Annual Data
Trend Aug16 Aug17 Aug18 Aug19 Aug20 Aug21 Aug22 Aug23 Aug24 Aug25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 8.16 6.32 2.57 -3.54 -9.77

Media Kobo Quarterly Data
May21 Aug21 Nov21 Feb22 May22 Aug22 Nov22 Feb23 May23 Aug23 Nov23 Feb24 May24 Aug24 Feb25 May25 Aug25 Nov25 Feb26 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 -5.95 -9.77 -10.26 -11.57 0.00

TSE:3815 vs GOOGL, META, SPOT: E10 Comparison

For the Internet Content & Information subindustry, Media Kobo'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.


Media Kobo Shiller PE Ratio vs Interactive Media Industry

For the Interactive Media industry and Communication Services sector, Media Kobo's Shiller PE Ratio distribution charts can be found below:

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


TSE:3815
49GF Score
Media Kobo Inc TSE:3815
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Media Kobo 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, Media Kobo's adjusted earnings per share data for the three months ended in Feb. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Feb. 2026 (Change)*Current CPI (Feb. 2026)
=-15/112.2000*112.2000
=-15.000

Current CPI (Feb. 2026) = 112.2000.

Media Kobo Quarterly Data

per share eps CPI Adj_EPS
201602 -0.970 97.800 -1.113
201605 -1.430 98.200 -1.634
201608 -9.460 97.900 -10.842
201611 6.370 98.600 7.249
201702 -0.650 98.100 -0.743
201705 -1.540 98.600 -1.752
201708 -14.956 98.500 -17.036
201711 0.160 99.100 0.181
201802 0.140 99.500 0.158
201805 1.810 99.300 2.045
201808 -0.130 99.800 -0.146
201811 1.920 100.000 2.154
201902 -0.151 99.700 -0.170
201905 0.259 100.000 0.291
201908 0.180 100.000 0.202
201911 -0.470 100.500 -0.525
202002 -2.600 100.300 -2.908
202005 -10.645 100.100 -11.932
202008 -1.120 100.100 -1.255
202011 0.520 99.500 0.586
202102 0.093 99.800 0.105
202105 -0.330 99.400 -0.372
202108 0.420 99.700 0.473
202111 5.170 100.100 5.795
202202 4.136 100.700 4.608
202205 1.540 101.800 1.697
202208 4.410 102.700 4.818
202211 0.250 103.900 0.270
202302 1.550 104.000 1.672
202305 -0.423 105.100 -0.452
202308 2.130 105.900 2.257
202311 -0.450 106.900 -0.472
202402 -0.430 106.900 -0.451
202405 -12.740 108.100 -13.223
202408 -13.270 109.100 -13.647
202502 0.000 110.800 0.000
202505 -12.240 111.800 -12.284
202508 -31.040 112.100 -31.068
202511 -10.400 113.200 -10.308
202602 -15.000 112.200 -15.000

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-11.57 mean?
Media Kobo (TSE:3815) has a E10 of 円-11.57 as of Feb. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Media Kobo and its competitors.
Is Media Kobo's E10 too high?
Media Kobo's current E10 is 円-11.57. Overall, Media Kobo has a GF Score™ of 49/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Media Kobo's E10 compare to GOOGL and META?
Media Kobo's E10 of 円-11.57 can be compared against companies in the Interactive Media 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 Interactive Media company?
A good E10 depends on the Interactive Media 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 Media Kobo and its competitors. Media Kobo's current E10 is 円-11.57. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Media Kobo stock overvalued right now?
Based on GuruFocus' analysis, Media Kobo (TSE:3815) is currently considered Modestly Overvalued. The stock's GF Value™ is 円376.55, compared to a current price of 円429.00 — trading 13.9% above its estimated fair value. The current E10 is 円-11.57. Media Kobo's overall GF Score™ is 49/100 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 Media Kobo (TSE:3815), the current E10 is 円-11.57 as of Feb. 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 Media Kobo (TSE:3815) Overvalued in 2026?

Based on GuruFocus' analysis, Media Kobo stock appears to be overvalued. The current stock price of 円429.00 is trading 13.9% above its estimated GF Value™ of 円376.55. GuruFocus considers Media Kobo to be Modestly Overvalued.

Key valuation signals for TSE:3815:

  • E10: 円-11.57
  • GF Value™: 円376.55 vs. price of 円429.00 (13.9% above fair value)
  • GF Score™: 49/100 with 5 warning signs

No single metric tells the full story. See the TSE:3815 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Media Kobo Business Description

Address 7-15-9 Roppongi, Sumitomo Realty & Development Roppongi Central Tower, 9th Floor, Minato-ku, Tokyo, JPN, 106-0032
Media Kobo Inc is engaged in is engaged in fortune-telling, entertainment and matching services, and other businesses. Its services also include: Digital content business, one to one marketing, and beauty business.
49GF Score

Get the complete analysis for TSE:3815

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

円429.00
Price
円376.55
GF Value