Rkb Mainichi Holdings (FSE:9407) E10: 円523.20 (As of Mar. 2026)

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Director of Data and Quant Analytics at GuruFocus
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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.

FSE:9407 Rkb Mainichi Holdings Corp FSE:9407
65 GF Score
Price 円5,920.00
GF Value 円7,301.47
Valuation Modestly Undervalued
! 5 Warning Signs
View Full Analysis

What is Rkb Mainichi Holdings E10?

Rkb Mainichi Holdings FSE:9407 65 E10 is 円523.20 as of Mar. 2026. GuruFocus rates FSE:9407 with a GF Score™ of 65/100 and a GF Value™ of 円7,301.47 (Modestly Undervalued). 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.

Rkb Mainichi Holdings's adjusted earnings per share data for the three months ended in Mar. 2026 was 円38.000. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円523.20 for the trailing ten years ended in Mar. 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.

As of today (2026-08-31), Rkb Mainichi Holdings's current stock price is 円5920.00. Rkb Mainichi Holdings's E10 for the quarter that ended in Mar. 2026 was 円523.20. Rkb Mainichi Holdings's Shiller PE Ratio of today is 11.31.

During the past 13 years, the highest Shiller PE Ratio of Rkb Mainichi Holdings was 12.01. The lowest was 9.18. And the median was 10.17.


Rkb Mainichi Holdings  (FSE:9407) 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.

Rkb Mainichi Holdings's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=5920.00/523.20
=11.31

* 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 Rkb Mainichi Holdings was 12.01. The lowest was 9.18. And the median was 10.17.


Be Aware

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


Rkb Mainichi Holdings E10 Related Terms


Rkb Mainichi Holdings E10 Historical Data

* Premium members only.

The historical data trend for Rkb Mainichi Holdings'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.

Rkb Mainichi Holdings E10 Chart

Rkb Mainichi Holdings 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 0.00 0.00 506.34 0.00 523.20

Rkb Mainichi Holdings Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Sep24 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 522.83 519.70 524.72 523.20 0.00

FSE:9407 vs NXST: E10 Comparison

For the Broadcasting subindustry, Rkb Mainichi Holdings'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.


Rkb Mainichi Holdings Shiller PE Ratio vs Media - Diversified Industry

For the Media - Diversified industry and Communication Services sector, Rkb Mainichi Holdings's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Rkb Mainichi Holdings's Shiller PE Ratio falls into.


FSE:9407
65GF Score
Rkb Mainichi Holdings Corp FSE:9407
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Rkb Mainichi Holdings 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, Rkb Mainichi Holdings'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)
=38/112.7000*112.7000
=38.000

Current CPI (Mar. 2026) = 112.7000.

Rkb Mainichi Holdings Quarterly Data

per share eps CPI Adj_EPS
201509 1.750 98.500 2.002
201512 199.703 98.100 229.424
201603 278.598 97.900 320.715
201606 165.060 98.100 189.626
201612 0.000 98.400 0.000
201703 237.710 98.100 273.088
201706 201.310 98.500 230.331
201709 123.147 98.800 140.472
201712 171.800 99.400 194.787
201803 205.716 99.200 233.712
201806 80.830 99.200 91.830
201809 125.436 99.900 141.508
201812 192.010 99.700 217.046
201903 170.145 99.700 192.330
201906 89.530 99.800 101.103
201909 83.440 100.100 93.943
201912 169.233 100.500 189.777
202003 150.040 100.300 168.589
202006 -56.610 99.900 -63.863
202009 -39.610 99.900 -44.685
202012 164.673 99.300 186.895
202103 177.902 99.900 200.696
202106 105.240 99.500 119.201
202109 67.240 100.100 75.704
202112 175.165 100.100 197.214
202203 106.744 101.100 118.992
202206 27.060 101.800 29.957
202209 34.669 103.100 37.897
202212 139.588 104.100 151.120
202303 103.750 104.400 111.998
202306 78.980 105.200 84.611
202309 39.220 106.200 41.620
202312 138.682 106.800 146.343
202403 70.080 107.200 73.676
202409 0.000 108.900 0.000
202503 0.000 111.100 0.000
202506 65.130 111.700 65.713
202509 92.100 112.000 92.676
202512 166.010 113.000 165.569
202603 38.000 112.700 38.000

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523.20 mean?
Rkb Mainichi Holdings (FSE:9407) has a E10 of 円523.20 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Rkb Mainichi Holdings and its competitors.
Is Rkb Mainichi Holdings' E10 too high?
Rkb Mainichi Holdings' current E10 is 円523.20. Overall, Rkb Mainichi Holdings has a GF Score™ of 65/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Rkb Mainichi Holdings' E10 compare to NXST?
Rkb Mainichi Holdings' E10 of 円523.20 can be compared against companies in the Media - Diversified 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 Media - Diversified company?
A good E10 depends on the Media - Diversified 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 Rkb Mainichi Holdings and its competitors. Rkb Mainichi Holdings's current E10 is 円523.20. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rkb Mainichi Holdings stock overvalued right now?
Based on GuruFocus' analysis, Rkb Mainichi Holdings (FSE:9407) is currently considered Modestly Undervalued. The stock's GF Value™ is 円7,301.47, compared to a current price of 円5,920.00 — trading 18.9% below its estimated fair value. The current E10 is 円523.20. Rkb Mainichi Holdings' overall GF Score™ is 65/100 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 Rkb Mainichi Holdings (FSE:9407), the current E10 is 円523.20 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 Rkb Mainichi Holdings (FSE:9407) Overvalued in 2026?

Based on GuruFocus' analysis, Rkb Mainichi Holdings stock appears to be undervalued. The current stock price of 円5,920.00 is trading 18.9% below its estimated GF Value™ of 円7,301.47. GuruFocus considers Rkb Mainichi Holdings to be Modestly Undervalued.

Key valuation signals for FSE:9407:

  • E10: 円523.20
  • GF Value™: 円7,301.47 vs. price of 円5,920.00 (18.9% below fair value)
  • GF Score™: 65/100 with 5 warning signs

No single metric tells the full story. See the FSE:9407 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Rkb Mainichi Holdings Business Description

Address 2-3-8 Momochihama, Sawara-ku, Fukuoka City, JPN, 814-8585
Rkb Mainichi Holdings Corp is engaged in the broadcasting business in the western area of Japan, including Kyushu. It offers a variety of TV and radio programs and sells commercial spots. Also the company is involved in system related business and real estate management.
65GF Score

Get the complete analysis for FSE:9407

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

円5,920.00
Price
円7,301.47
GF Value