Joyfull Co (FSE:9942) E10: 円-6.20 (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:9942 Joyfull Co Ltd FSE:9942
73 GF Score
Price 円1,337.00
GF Value 円1,227.88
Valuation Fairly Valued
! 3 Warning Signs
View Full Analysis

What is Joyfull Co E10?

Joyfull Co FSE:9942 -0.30% 73 E10 is 円-6.20 as of Mar. 2026. GuruFocus rates FSE:9942 with a GF Score™ of 73/100 and a GF Value™ of 円1,227.88 (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.

Joyfull Co's adjusted earnings per share data for the three months ended in Mar. 2026 was 円16.660. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円-6.20 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 (2026-08-23), Joyfull Co's current stock price is 円1337.00. Joyfull Co's E10 for the quarter that ended in Mar. 2026 was 円-6.20. Joyfull Co's Shiller PE Ratio of today is .


Joyfull Co  (FSE:9942) 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.


Joyfull Co E10 Related Terms


Joyfull Co E10 Historical Data

* Premium members only.

The historical data trend for Joyfull 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.

Joyfull Co E10 Chart

Joyfull Co Annual Data
Trend Dec16 Dec17 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25 Jun26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 -13.35 -8.31 -10.86 0.00

Joyfull Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 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 -10.86 -7.49 -7.79 -6.20 0.00

FSE:9942 vs MCD, SBUX, YUM: E10 Comparison

For the Restaurants subindustry, Joyfull 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.


Joyfull Co Shiller PE Ratio vs Restaurants Industry

For the Restaurants industry and Consumer Cyclical sector, Joyfull Co's Shiller PE Ratio distribution charts can be found below:

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


FSE:9942
73GF Score
Joyfull Co Ltd FSE:9942
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Joyfull 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, Joyfull Co'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)
=16.66/112.7000*112.7000
=16.660

Current CPI (Mar. 2026) = 112.7000.

Joyfull Co Quarterly Data

per share eps CPI Adj_EPS
201603 15.360 97.900 17.682
201606 9.833 98.100 11.296
201609 32.350 98.000 37.203
201612 -10.915 98.400 -12.501
201703 5.060 98.100 5.813
201706 0.960 98.500 1.098
201709 29.550 98.800 33.707
201712 -25.164 99.400 -28.531
201803 13.130 99.200 14.917
201806 -7.140 99.200 -8.112
201809 26.210 99.900 29.568
201812 -36.490 99.700 -41.248
201903 -17.480 99.700 -19.759
201906 -140.360 99.800 -158.503
201909 17.830 100.100 20.074
201912 -11.610 100.500 -13.019
202003 -91.430 100.300 -102.733
202006 -231.470 99.900 -261.128
202009 8.180 99.900 9.228
202012 24.450 99.300 27.749
202103 11.600 99.900 13.086
202106 15.000 99.500 16.990
202109 30.810 100.100 34.688
202112 28.847 100.100 32.478
202203 7.800 101.100 8.695
202206 14.650 101.800 16.219
202209 0.680 103.100 0.743
202212 18.443 104.100 19.967
202303 20.640 104.400 22.281
202306 12.403 105.200 13.287
202309 41.180 106.200 43.700
202312 26.220 106.800 27.668
202403 38.769 107.200 40.758
202406 1.270 108.200 1.323
202412 0.000 110.700 0.000
202503 9.480 111.100 9.617
202506 -2.240 111.700 -2.260
202509 36.570 112.000 36.799
202512 24.070 113.000 24.006
202603 16.660 112.700 16.660

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-6.20 mean?
Joyfull Co (FSE:9942) has a E10 of 円-6.20 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Joyfull Co and its competitors.
Is Joyfull Co's E10 too high?
Joyfull Co's current E10 is 円-6.20. Overall, Joyfull Co has a GF Score™ of 73/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Joyfull Co's E10 compare to MCD and SBUX?
Joyfull Co's E10 of 円-6.20 can be compared against companies in the Restaurants 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 Restaurants company?
A good E10 depends on the Restaurants 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 Joyfull Co and its competitors. Joyfull Co's current E10 is 円-6.20. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Joyfull Co stock overvalued right now?
Based on GuruFocus' analysis, Joyfull Co (FSE:9942) is currently considered Fairly Valued. The stock's GF Value™ is 円1,227.88, compared to a current price of 円1,337.00 — trading 8.9% above its estimated fair value. The current E10 is 円-6.20. Joyfull Co's overall GF Score™ is 73/100 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 Joyfull Co (FSE:9942), the current E10 is 円-6.20 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 Joyfull Co (FSE:9942) Overvalued in 2026?

Based on GuruFocus' analysis, Joyfull Co stock appears to be overvalued. The current stock price of 円1,337.00 is trading 8.9% above its estimated GF Value™ of 円1,227.88. GuruFocus considers Joyfull Co to be Fairly Valued.

Key valuation signals for FSE:9942:

  • E10: 円-6.20
  • GF Value™: 円1,227.88 vs. price of 円1,337.00 (8.9% above fair value)
  • GF Score™: 73/100 with 3 warning signs

No single metric tells the full story. See the FSE:9942 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Joyfull Co Business Description

Address 1-1-45 Mitsugawashinmachi, Oita Prefecture, Oita, JPN, 870-0141
Joyfull Co Ltd is a Japanese based chain restaurant operator. It is engaged in offering a western-style menu. It offers a lunch menu, grilled lunch, morning menu, the seasonal menu including chicken, beef, pork, meat, snacks, combo meals, alcohol, dessert, cappuccino, black bean tea, among others.
73GF Score

Get the complete analysis for FSE:9942

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

円1,337.00
Price
円1,227.88
GF Value