Japan Reliance Service (TSE:4664) E10: 円48.48 (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:4664 Japan Reliance Service Corp TSE:4664
76 GF Score
Price 円930.00
GF Value 円756.61
Valuation Modestly Overvalued
! 3 Warning Signs
View Full Analysis

What is Japan Reliance Service E10?

Japan Reliance Service TSE:4664 -1.90% 76 E10 is 円48.48 as of Mar. 2026. GuruFocus rates TSE:4664 with a GF Score™ of 76/100 and a GF Value™ of 円756.61 (Modestly Overvalued). 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.

Japan Reliance Service's adjusted earnings per share data for the three months ended in Mar. 2026 was 円22.510. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円48.48 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was 16.70% 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 Japan Reliance Service was 81.40% per year. The lowest was 14.50% per year. And the median was 45.40% per year.

As of today (2026-08-24), Japan Reliance Service's current stock price is 円930.00. Japan Reliance Service's E10 for the quarter that ended in Mar. 2026 was 円48.48. Japan Reliance Service's Shiller PE Ratio of today is 19.18.

During the past 13 years, the highest Shiller PE Ratio of Japan Reliance Service was 562.58. The lowest was 11.81. And the median was 20.81.


Japan Reliance Service  (TSE:4664) 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.

Japan Reliance Service's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=930.00/48.48
=19.18

* 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 Japan Reliance Service was 562.58. The lowest was 11.81. And the median was 20.81.


Be Aware

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


Japan Reliance Service E10 Related Terms


Japan Reliance Service E10 Historical Data

* Premium members only.

The historical data trend for Japan Reliance Service'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.

Japan Reliance Service E10 Chart

Japan Reliance Service 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 28.23 30.49 37.48 0.00 48.48

Japan Reliance Service Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 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 45.33 45.69 46.88 48.48 0.00

TSE:4664 vs CTAS, CPRT, GPN: E10 Comparison

For the Specialty Business Services subindustry, Japan Reliance Service'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.


Japan Reliance Service Shiller PE Ratio vs Business Services Industry

For the Business Services industry and Industrials sector, Japan Reliance Service's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Japan Reliance Service's Shiller PE Ratio falls into.


TSE:4664
76GF Score
Japan Reliance Service Corp TSE:4664
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Japan Reliance Service 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, Japan Reliance Service'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)
=22.51/112.7000*112.7000
=22.510

Current CPI (Mar. 2026) = 112.7000.

Japan Reliance Service Quarterly Data

per share eps CPI Adj_EPS
201603 2.878 97.900 3.313
201606 -0.060 98.100 -0.069
201609 -4.982 98.000 -5.729
201612 2.440 98.400 2.795
201703 -6.220 98.100 -7.146
201706 1.590 98.500 1.819
201709 4.140 98.800 4.722
201712 10.526 99.400 11.934
201803 11.780 99.200 13.383
201806 13.520 99.200 15.360
201809 9.897 99.900 11.165
201812 10.760 99.700 12.163
201903 5.415 99.700 6.121
201906 10.460 99.800 11.812
201909 9.580 100.100 10.786
201912 3.841 100.500 4.307
202003 10.480 100.300 11.776
202006 17.970 99.900 20.272
202009 15.970 99.900 18.016
202012 9.469 99.300 10.747
202103 6.760 99.900 7.626
202106 8.360 99.500 9.469
202109 14.260 100.100 16.055
202112 12.000 100.100 13.510
202203 22.480 101.100 25.059
202206 14.680 101.800 16.252
202209 12.450 103.100 13.609
202212 14.150 104.100 15.319
202303 2.940 104.400 3.174
202306 35.770 105.200 38.320
202309 18.430 106.200 19.558
202312 25.440 106.800 26.845
202403 4.410 107.200 4.636
202406 15.970 108.200 16.634
202409 39.690 108.900 41.075
202503 0.000 111.100 0.000
202506 13.950 111.700 14.075
202509 2.850 112.000 2.868
202512 8.550 113.000 8.527
202603 22.510 112.700 22.510

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48.48 mean?
Japan Reliance Service (TSE:4664) has a E10 of 円48.48 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Japan Reliance Service and its competitors.
Is Japan Reliance Service's E10 too high?
Japan Reliance Service's current E10 is 円48.48. Overall, Japan Reliance Service has a GF Score™ of 76/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Japan Reliance Service's E10 compare to CTAS and CPRT?
Japan Reliance Service's E10 of 円48.48 can be compared against companies in the Business Services 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 Business Services company?
A good E10 depends on the Business Services 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 Japan Reliance Service and its competitors. Japan Reliance Service's current E10 is 円48.48. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Japan Reliance Service stock overvalued right now?
Based on GuruFocus' analysis, Japan Reliance Service (TSE:4664) is currently considered Modestly Overvalued. The stock's GF Value™ is 円756.61, compared to a current price of 円930.00 — trading 22.9% above its estimated fair value. The current E10 is 円48.48. Japan Reliance Service's overall GF Score™ is 76/100 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 Japan Reliance Service (TSE:4664), the current E10 is 円48.48 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 Japan Reliance Service (TSE:4664) Overvalued in 2026?

Based on GuruFocus' analysis, Japan Reliance Service stock appears to be overvalued. The current stock price of 円930.00 is trading 22.9% above its estimated GF Value™ of 円756.61. GuruFocus considers Japan Reliance Service to be Modestly Overvalued.

Key valuation signals for TSE:4664:

  • E10: 円48.48
  • GF Value™: 円756.61 vs. price of 円930.00 (22.9% above fair value)
  • GF Score™: 76/100 with 3 warning signs

No single metric tells the full story. See the TSE:4664 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Japan Reliance Service Business Description

Address 3-1-3 Higashiikebukuro, Sunshine City World Import Mart Building, 9th Floor, Toshima-ku, Tokyo, JPN, 170-8630
Japan Reliance Service Corp is engaged in the provision of building management services. The company offers building management services such as security, cleaning, office services, and facility management for government offices, private corporate offices, stores, hotels, hospitals, and other buildings, as well as human resources services.
76GF Score

Get the complete analysis for TSE:4664

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

円930.00
Price
円756.61
GF Value