A-One Seimitsu (TSE:6156) E10: 円61.99 (As of Mar. 2026)

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TSE:6156 A-One Seimitsu Inc TSE:6156
68 GF Score
Price 円1,878.00
GF Value 円1,887.74
Valuation Fairly Valued
! 4 Warning Signs
View Full Analysis

What is A-One Seimitsu E10?

A-One Seimitsu TSE:6156 +0.05% 68 E10 is 円61.99 as of Mar. 2026. GuruFocus rates TSE:6156 with a GF Score™ of 68/100 and a GF Value™ of 円1,887.74 (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.

A-One Seimitsu's adjusted earnings per share data for the three months ended in Mar. 2026 was 円8.147. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円61.99 for the trailing ten years ended in Mar. 2026.

During the past 12 months, A-One Seimitsu's average E10 Growth Rate was -100.00% 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 A-One Seimitsu was 4.80% per year. The lowest was -2.20% per year. And the median was 2.20% per year.

As of today (2026-08-31), A-One Seimitsu's current stock price is 円1878.00. A-One Seimitsu's E10 for the quarter that ended in Mar. 2026 was 円61.99. A-One Seimitsu's Shiller PE Ratio of today is 30.30.

During the past 13 years, the highest Shiller PE Ratio of A-One Seimitsu was 33.51. The lowest was 14.88. And the median was 21.07.


A-One Seimitsu  (TSE:6156) 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.

A-One Seimitsu's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=1878.00/61.99
=30.30

* 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 A-One Seimitsu was 33.51. The lowest was 14.88. And the median was 21.07.


Be Aware

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


A-One Seimitsu E10 Related Terms


A-One Seimitsu E10 Historical Data

* Premium members only.

The historical data trend for A-One Seimitsu'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.

A-One Seimitsu E10 Chart

A-One Seimitsu Annual Data
Trend Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25 Jun26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 77.14 79.04 77.75 72.11 0.00

A-One Seimitsu 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 72.11 69.06 68.17 61.99 0.00

TSE:6156 vs SNA, RBC, LECO: E10 Comparison

For the Tools & Accessories subindustry, A-One Seimitsu'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.


A-One Seimitsu Shiller PE Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, A-One Seimitsu's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where A-One Seimitsu's Shiller PE Ratio falls into.


TSE:6156
68GF Score
A-One Seimitsu Inc TSE:6156
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

A-One Seimitsu 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, A-One Seimitsu'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)
=8.147/112.7000*112.7000
=8.147

Current CPI (Mar. 2026) = 112.7000.

A-One Seimitsu Quarterly Data

per share eps CPI Adj_EPS
201603 19.478 97.900 22.423
201606 21.097 98.100 24.237
201609 18.835 98.000 21.660
201612 18.805 98.400 21.538
201703 22.525 98.100 25.877
201706 22.086 98.500 25.270
201709 26.670 98.800 30.422
201712 21.860 99.400 24.785
201803 22.298 99.200 25.333
201806 25.285 99.200 28.726
201809 24.695 99.900 27.859
201812 23.325 99.700 26.366
201903 24.523 99.700 27.721
201906 20.725 99.800 23.404
201909 18.740 100.100 21.099
201912 17.987 100.500 20.170
202003 18.100 100.300 20.338
202006 11.750 99.900 13.256
202009 9.150 99.900 10.322
202012 12.300 99.300 13.960
202103 16.500 99.900 18.614
202106 18.014 99.500 20.404
202109 17.390 100.100 19.579
202112 19.630 100.100 22.101
202203 13.480 101.100 15.027
202206 12.740 101.800 14.104
202209 11.530 103.100 12.604
202212 12.388 104.100 13.411
202303 9.016 104.400 9.733
202306 5.379 105.200 5.762
202309 8.360 106.200 8.872
202312 7.219 106.800 7.618
202403 4.130 107.200 4.342
202406 4.310 108.200 4.489
202412 0.000 110.700 0.000
202503 5.210 111.100 5.285
202506 -52.610 111.700 -53.081
202509 6.050 112.000 6.088
202512 6.600 113.000 6.582
202603 8.147 112.700 8.147

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61.99 mean?
A-One Seimitsu (TSE:6156) has a E10 of 円61.99 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on A-One Seimitsu and its competitors.
Is A-One Seimitsu's E10 too high?
A-One Seimitsu's current E10 is 円61.99. Overall, A-One Seimitsu has a GF Score™ of 68/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does A-One Seimitsu's E10 compare to SNA and RBC?
A-One Seimitsu's E10 of 円61.99 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 A-One Seimitsu and its competitors. A-One Seimitsu's current E10 is 円61.99. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is A-One Seimitsu stock overvalued right now?
Based on GuruFocus' analysis, A-One Seimitsu (TSE:6156) is currently considered Fairly Valued. The stock's GF Value™ is 円1,887.74, compared to a current price of 円1,878.00 — trading 0.5% below its estimated fair value. The current E10 is 円61.99. A-One Seimitsu's overall GF Score™ is 68/100 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 A-One Seimitsu (TSE:6156), the current E10 is 円61.99 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 A-One Seimitsu (TSE:6156) Overvalued in 2026?

Based on GuruFocus' analysis, A-One Seimitsu stock appears to be undervalued. The current stock price of 円1,878.00 is trading 0.5% below its estimated GF Value™ of 円1,887.74. GuruFocus considers A-One Seimitsu to be Fairly Valued.

Key valuation signals for TSE:6156:

  • E10: 円61.99
  • GF Value™: 円1,887.74 vs. price of 円1,878.00 (0.5% below fair value)
  • GF Score™: 68/100 with 4 warning signs

No single metric tells the full story. See the TSE:6156 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


A-One Seimitsu Business Description

Address 2-20-5 Bunumecho, Fuchu-shi, Tokyo, JPN, 183-0033
A-One Seimitsu Inc is engaged in the manufacturing of various collet chucks, guide bushes, cutting tools, and the manufacturing and sales of cams for automatic lathes. It also manufactures cutting tool re-polishing, special cutting tools.
68GF Score

Get the complete analysis for TSE:6156

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

円1,878.00
Price
円1,887.74
GF Value