All About (TSE:2454) E10: 円5.30 (As of Mar. 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:2454 All About Inc TSE:2454
61 GF Score
Price 円345.00
GF Value 円361.73
Valuation Fairly Valued
! 3 Warning Signs
View Full Analysis

What is All About E10?

All About TSE:2454 +0.58% 61 E10 is 円5.30 as of Mar. 2026. GuruFocus rates TSE:2454 with a GF Score™ of 61/100 and a GF Value™ of 円361.73 (Fairly Valued). 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.

All About's adjusted earnings per share data for the fiscal year that ended in Mar. 2026 was 円-33.660. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円5.30 for the trailing ten years ended in Mar. 2026.

During the past 12 months, All About's average E10 Growth Rate was -28.90% per year. During the past 3 years, the average E10 Growth Rate was -23.50% per year. During the past 5 years, the average E10 Growth Rate was -14.50% 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 All About was 22.70% per year. The lowest was -23.50% per year. And the median was 1.85% per year.

As of today (2026-07-24), All About's current stock price is 円 345.00. All About's E10 for the fiscal year that ended in Mar. 2026 was 円5.30. All About's Shiller PE Ratio of today is 65.09.

During the past 13 years, the highest Shiller PE Ratio of All About was 250.42. The lowest was 31.19. And the median was 58.44.


All About  (TSE:2454) 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.

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

Shiller PE Ratio=Share Price/E10
=345.00/5.30
=65.09

* 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 All About was 250.42. The lowest was 31.19. And the median was 58.44.


Be Aware

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


All About E10 Related Terms


All About E10 Historical Data

* Premium members only.

The historical data trend for All About'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.

All About E10 Chart

All About 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 13.16 11.83 8.19 7.45 5.30

All About Semi-Annual Data
Sep16 Mar17 Sep17 Mar18 Sep18 Mar19 Sep19 Mar20 Sep20 Mar21 Sep21 Mar22 Sep22 Mar23 Sep23 Mar24 Sep24 Mar25 Sep25 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 8.19 0.00 7.45 0.00 5.30

TSE:2454 vs GOOGL, META, SPOT: E10 Comparison

For the Internet Content & Information subindustry, All About'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.


All About Shiller PE Ratio vs Interactive Media Industry

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

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


TSE:2454
61GF Score
All About Inc TSE:2454
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

All About 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, All About's adjusted earnings per share data for the fiscal year that ended in Mar. 2026 was:

Adj_EPS=Earnings per Share (Diluted) /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=-33.66/112.7000*112.7000
=-33.660

Current CPI (Mar. 2026) = 112.7000.

All About Annual Data

per_share_eps CPI Adj_EPS
201703 17.040 98.100 19.576
201803 23.850 99.200 27.096
201903 -2.250 99.700 -2.543
202003 15.000 100.300 16.854
202103 36.930 99.900 41.662
202203 25.180 101.100 28.069
202303 -6.060 104.400 -6.542
202403 -32.960 107.200 -34.651
202503 -2.800 111.100 -2.840
202603 -33.660 112.700 -33.660

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5.30 mean?
All About (TSE:2454) has a E10 of 円5.30 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on All About and its competitors.
Is All About's E10 too high?
All About's current E10 is 円5.30. Overall, All About has a GF Score™ of 61/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does All About's E10 compare to GOOGL and META?
All About's E10 of 円5.30 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 All About and its competitors. All About's current E10 is 円5.30. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is All About stock overvalued right now?
Based on GuruFocus' analysis, All About (TSE:2454) is currently considered Fairly Valued. The stock's GF Value™ is 円361.73, compared to a current price of 円345.00 — trading 4.6% below its estimated fair value. The current E10 is 円5.30. All About's overall GF Score™ is 61/100 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 All About (TSE:2454), the current E10 is 円5.30 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 All About (TSE:2454) Overvalued in 2026?

Based on GuruFocus' analysis, All About stock appears to be undervalued. The current stock price of 円345.00 is trading 4.6% below its estimated GF Value™ of 円361.73. GuruFocus considers All About to be Fairly Valued.

Key valuation signals for TSE:2454:

  • E10: 円5.30
  • GF Value™: 円361.73 vs. price of 円345.00 (4.6% below fair value)
  • GF Score™: 61/100 with 3 warning signs

No single metric tells the full story. See the TSE:2454 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


All About Business Description

Address Shibuya-ku, 1-15-1 Ebisu Minami, Tokyo, JPN, 150-0013
All About Inc is engaged in the technology business. The company provides Internet advertising services. It offers editorial advertising, ad impressions, and ad traffic services.
61GF Score

Get the complete analysis for TSE:2454

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

円345.00
Price
円361.73
GF Value