Airtech Japan (TSE:6291) E10: 円92.46 (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
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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.
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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:6291 Airtech Japan Ltd TSE:6291
72 GF Score
Price 円1,326.00
GF Value 円1,289.90
Valuation Fairly Valued
! 4 Warning Signs
View Full Analysis

What is Airtech Japan E10?

Airtech Japan TSE:6291 +0.45% 72 E10 is 円92.46 as of Dec. 2025. GuruFocus rates TSE:6291 with a GF Score™ of 72/100 and a GF Value™ of 円1,289.90 (Fairly Valued). The stock has 4 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.

Airtech Japan's adjusted earnings per share data for the three months ended in Dec. 2025 was 円17.640. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円92.46 for the trailing ten years ended in Dec. 2025.

During the past 3 years, the average E10 Growth Rate was 13.10% 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 Airtech Japan was 34.20% per year. The lowest was 13.10% per year. And the median was 27.05% per year.

As of today (2026-07-24), Airtech Japan's current stock price is 円1326.00. Airtech Japan's E10 for the quarter that ended in Dec. 2025 was 円92.46. Airtech Japan's Shiller PE Ratio of today is 14.34.

During the past 13 years, the highest Shiller PE Ratio of Airtech Japan was 52.98. The lowest was 11.75. And the median was 18.78.


Airtech Japan  (TSE:6291) 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.

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

Shiller PE Ratio=Share Price/E10
=1326.00/92.46
=14.34

* 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 Airtech Japan was 52.98. The lowest was 11.75. And the median was 18.78.


Be Aware

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


Airtech Japan E10 Related Terms


Airtech Japan E10 Historical Data

* Premium members only.

The historical data trend for Airtech Japan'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.

Airtech Japan E10 Chart

Airtech Japan Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 53.76 63.85 71.35 0.00 92.46

Airtech Japan Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Dec24 Mar25 Jun25 Sep25 Dec25 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 84.41 89.96 90.26 92.46 0.00

TSE:6291 vs VLTO, ZWS, CECO: E10 Comparison

For the Pollution & Treatment Controls subindustry, Airtech Japan'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.


Airtech Japan Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Airtech Japan's Shiller PE Ratio distribution charts can be found below:

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


TSE:6291
72GF Score
Airtech Japan Ltd TSE:6291
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Airtech Japan 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, Airtech Japan's adjusted earnings per share data for the three months ended in Dec. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=17.64/113.0000*113.0000
=17.640

Current CPI (Dec. 2025) = 113.0000.

Airtech Japan Quarterly Data

per share eps CPI Adj_EPS
201512 12.760 98.100 14.698
201603 6.110 97.900 7.052
201606 10.218 98.100 11.770
201609 8.271 98.000 9.537
201612 12.140 98.400 13.941
201703 1.800 98.100 2.073
201706 24.090 98.500 27.636
201709 14.250 98.800 16.298
201712 17.840 99.400 20.281
201803 2.970 99.200 3.383
201806 18.250 99.200 20.789
201809 1.960 99.900 2.217
201812 22.690 99.700 25.717
201903 8.000 99.700 9.067
201906 23.770 99.800 26.914
201909 9.190 100.100 10.374
201912 4.369 100.500 4.912
202003 10.070 100.300 11.345
202006 27.680 99.900 31.310
202009 33.230 99.900 37.587
202012 42.520 99.300 48.386
202103 80.670 99.900 91.248
202106 32.470 99.500 36.875
202109 24.300 100.100 27.432
202112 14.950 100.100 16.877
202203 28.700 101.100 32.078
202206 29.710 101.800 32.979
202209 23.790 103.100 26.074
202212 16.720 104.100 18.149
202303 28.230 104.400 30.555
202306 27.240 105.200 29.260
202309 12.400 106.200 13.194
202312 2.890 106.800 3.058
202403 26.110 107.200 27.523
202406 45.737 108.200 47.766
202412 0.000 110.700 0.000
202503 24.360 111.100 24.777
202506 54.140 111.700 54.770
202509 15.820 112.000 15.961
202512 17.640 113.000 17.640

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92.46 mean?
Airtech Japan (TSE:6291) has a E10 of 円92.46 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Airtech Japan and its competitors.
Is Airtech Japan's E10 too high?
Airtech Japan's current E10 is 円92.46. Overall, Airtech Japan has a GF Score™ of 72/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Airtech Japan's E10 compare to VLTO and ZWS?
Airtech Japan's E10 of 円92.46 can be compared against companies in the Industrial Products 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 Industrial Products company?
A good E10 depends on the Industrial Products 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 Airtech Japan and its competitors. Airtech Japan's current E10 is 円92.46. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Airtech Japan stock overvalued right now?
Based on GuruFocus' analysis, Airtech Japan (TSE:6291) is currently considered Fairly Valued. The stock's GF Value™ is 円1,289.90, compared to a current price of 円1,326.00 — trading 2.8% above its estimated fair value. The current E10 is 円92.46. Airtech Japan's overall GF Score™ is 72/100 with 4 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 Airtech Japan (TSE:6291), the current E10 is 円92.46 as of Dec. 2025. 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 Airtech Japan (TSE:6291) Overvalued in 2026?

Based on GuruFocus' analysis, Airtech Japan stock appears to be overvalued. The current stock price of 円1,326.00 is trading 2.8% above its estimated GF Value™ of 円1,289.90. GuruFocus considers Airtech Japan to be Fairly Valued.

Key valuation signals for TSE:6291:

  • E10: 円92.46
  • GF Value™: 円1,289.90 vs. price of 円1,326.00 (2.8% above fair value)
  • GF Score™: 72/100 with 4 warning signs

No single metric tells the full story. See the TSE:6291 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Airtech Japan Business Description

Address No. 14, Iriya 1 - chome, Taito-ku, Tokyo, JPN, 110-8686
Airtech Japan Ltd is engaged as a manufacturer of clean air system, manufacture and sell clean room, clean bench, and biohazard system. The products of the company include sterile operating room, dust removal air shower, double air shower, and air knife type pass box, Cleanrooms/BSL-3/CPF, Air showers, Clean booths/SS-MAC series/Fan filter units, Clean benches/Biosafety cabinets/Isolators, Infection prevention products, Air curtains/Insect control/Cold storage air curtains.
72GF Score

Get the complete analysis for TSE:6291

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

円1,326.00
Price
円1,289.90
GF Value