Nippon Air Conditioning Services Co (TSE:4658) E10: 円70.83 (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:4658 Nippon Air Conditioning Services Co Ltd TSE:4658
83 GF Score
Price 円1,556.00
GF Value 円1,200.05
Valuation Modestly Overvalued
! 2 Warning Signs
View Full Analysis

What is Nippon Air Conditioning Services Co E10?

Nippon Air Conditioning Services Co TSE:4658 +0.45% 83 E10 is 円70.83 as of Mar. 2026. GuruFocus rates TSE:4658 with a GF Score™ of 83/100 and a GF Value™ of 円1,200.05 (Modestly Overvalued). The stock has 2 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.

Nippon Air Conditioning Services Co's adjusted earnings per share data for the three months ended in Mar. 2026 was 円45.180. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円70.83 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Nippon Air Conditioning Services Co's average E10 Growth Rate was 13.70% per year. During the past 3 years, the average E10 Growth Rate was 12.70% per year. During the past 5 years, the average E10 Growth Rate was 12.70% 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 Nippon Air Conditioning Services Co was 13.20% per year. The lowest was 10.10% per year. And the median was 12.75% per year.

As of today (2026-08-23), Nippon Air Conditioning Services Co's current stock price is 円1556.00. Nippon Air Conditioning Services Co's E10 for the quarter that ended in Mar. 2026 was 円70.83. Nippon Air Conditioning Services Co's Shiller PE Ratio of today is 21.97.

During the past 13 years, the highest Shiller PE Ratio of Nippon Air Conditioning Services Co was 29.99. The lowest was 14.10. And the median was 19.07.


Nippon Air Conditioning Services Co  (TSE:4658) 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.

Nippon Air Conditioning Services Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=1556.00/70.83
=21.97

* 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 Nippon Air Conditioning Services Co was 29.99. The lowest was 14.10. And the median was 19.07.


Be Aware

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


Nippon Air Conditioning Services Co E10 Related Terms


Nippon Air Conditioning Services Co E10 Historical Data

* Premium members only.

The historical data trend for Nippon Air Conditioning Services 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.

Nippon Air Conditioning Services Co E10 Chart

Nippon Air Conditioning Services Co 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 44.75 49.54 55.17 62.30 70.83

Nippon Air Conditioning Services Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 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 63.74 65.48 66.96 70.83 0.00

TSE:4658 vs CTAS, CPRT, GPN: E10 Comparison

For the Specialty Business Services subindustry, Nippon Air Conditioning Services 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.


Nippon Air Conditioning Services Co Shiller PE Ratio vs Business Services Industry

For the Business Services industry and Industrials sector, Nippon Air Conditioning Services Co's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Nippon Air Conditioning Services Co's Shiller PE Ratio falls into.


TSE:4658
83GF Score
Nippon Air Conditioning Services Co Ltd TSE:4658
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Nippon Air Conditioning Services 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, Nippon Air Conditioning Services 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)
=45.18/112.7000*112.7000
=45.180

Current CPI (Mar. 2026) = 112.7000.

Nippon Air Conditioning Services Co Quarterly Data

per share eps CPI Adj_EPS
201606 5.210 98.100 5.985
201609 11.350 98.000 13.053
201612 9.350 98.400 10.709
201703 16.190 98.100 18.600
201706 3.420 98.500 3.913
201709 18.610 98.800 21.228
201712 8.270 99.400 9.377
201803 13.480 99.200 15.314
201806 5.530 99.200 6.283
201809 17.000 99.900 19.178
201812 15.320 99.700 17.318
201903 12.320 99.700 13.926
201906 9.090 99.800 10.265
201909 21.030 100.100 23.677
201912 9.790 100.500 10.978
202003 13.110 100.300 14.731
202006 3.030 99.900 3.418
202009 14.480 99.900 16.335
202012 17.840 99.300 20.247
202103 20.420 99.900 23.036
202106 1.890 99.500 2.141
202109 43.310 100.100 48.762
202112 14.630 100.100 16.472
202203 20.220 101.100 22.540
202206 1.260 101.800 1.395
202209 12.050 103.100 13.172
202212 15.940 104.100 17.257
202303 26.590 104.400 28.704
202306 2.520 105.200 2.700
202309 19.830 106.200 21.044
202312 25.830 106.800 27.257
202403 30.190 107.200 31.739
202406 10.600 108.200 11.041
202409 23.260 108.900 24.072
202412 19.100 110.700 19.445
202503 36.150 111.100 36.671
202506 15.190 111.700 15.326
202509 30.140 112.000 30.328
202512 15.500 113.000 15.459
202603 45.180 112.700 45.180

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70.83 mean?
Nippon Air Conditioning Services Co (TSE:4658) has a E10 of 円70.83 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Nippon Air Conditioning Services Co and its competitors.
Is Nippon Air Conditioning Services Co's E10 too high?
Nippon Air Conditioning Services Co's current E10 is 円70.83. Overall, Nippon Air Conditioning Services Co has a GF Score™ of 83/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Nippon Air Conditioning Services Co's E10 compare to CTAS and CPRT?
Nippon Air Conditioning Services Co's E10 of 円70.83 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 Nippon Air Conditioning Services Co and its competitors. Nippon Air Conditioning Services Co's current E10 is 円70.83. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Nippon Air Conditioning Services Co stock overvalued right now?
Based on GuruFocus' analysis, Nippon Air Conditioning Services Co (TSE:4658) is currently considered Modestly Overvalued. The stock's GF Value™ is 円1,200.05, compared to a current price of 円1,556.00 — trading 29.7% above its estimated fair value. The current E10 is 円70.83. Nippon Air Conditioning Services Co's overall GF Score™ is 83/100 with 2 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 Nippon Air Conditioning Services Co (TSE:4658), the current E10 is 円70.83 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 Nippon Air Conditioning Services Co (TSE:4658) Overvalued in 2026?

Based on GuruFocus' analysis, Nippon Air Conditioning Services Co stock appears to be overvalued. The current stock price of 円1,556.00 is trading 29.7% above its estimated GF Value™ of 円1,200.05. GuruFocus considers Nippon Air Conditioning Services Co to be Modestly Overvalued.

Key valuation signals for TSE:4658:

  • E10: 円70.83
  • GF Value™: 円1,200.05 vs. price of 円1,556.00 (29.7% above fair value)
  • GF Score™: 83/100 with 2 warning signs

No single metric tells the full story. See the TSE:4658 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Nippon Air Conditioning Services Co Business Description

Other Exchanges 4658:Japan
Address Nagoya Terugaoka No. 239, Meito-ku, Aichi, Nagoya, JPN, 465-0042
Nippon Air Conditioning Services Co Ltd provides maintenance of building facilities, and equipment diagnosis and environment diagnosis.
83GF Score

Get the complete analysis for TSE:4658

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

円1,556.00
Price
円1,200.05
GF Value