JMACS Japan Co (TSE:5817) E10: 円12.43 (As of Feb. 2026)

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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
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:5817 JMACS Japan Co TSE:5817
55 GF Score
Price 円1,036.00
GF Value 円516.12
Valuation Significantly Overvalued
! 1 Warning Sign
View Full Analysis

What is JMACS Japan Co E10?

JMACS Japan Co TSE:5817 +0.19% 55 E10 is 円12.43 as of Feb. 2026. GuruFocus rates TSE:5817 with a GF Score™ of 55/100 and a GF Value™ of 円516.12 (Significantly Overvalued). The stock has 1 warning sign 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.

JMACS Japan Co's adjusted earnings per share data for the three months ended in Feb. 2026 was 円24.960. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円12.43 for the trailing ten years ended in Feb. 2026.

During the past 3 years, the average E10 Growth Rate was 6.70% 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 JMACS Japan Co was 50.30% per year. The lowest was 6.70% per year. And the median was 28.50% per year.

As of today (2026-08-29), JMACS Japan Co's current stock price is 円1036.00. JMACS Japan Co's E10 for the quarter that ended in Feb. 2026 was 円12.43. JMACS Japan Co's Shiller PE Ratio of today is 83.35.

During the past 13 years, the highest Shiller PE Ratio of JMACS Japan Co was 1052.27. The lowest was 29.67. And the median was 97.26.


JMACS Japan Co  (TSE:5817) 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.

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

Shiller PE Ratio=Share Price/E10
=1036.00/12.43
=83.35

* 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 JMACS Japan Co was 1052.27. The lowest was 29.67. And the median was 97.26.


Be Aware

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


JMACS Japan Co E10 Related Terms


JMACS Japan Co E10 Historical Data

* Premium members only.

The historical data trend for JMACS Japan 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.

JMACS Japan Co E10 Chart

JMACS Japan Co Annual Data
Trend Feb17 Feb18 Feb19 Feb20 Feb21 Feb22 Feb23 Feb24 Feb25 Feb26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 11.17 10.23 6.35 0.00 12.43

JMACS Japan Co Quarterly Data
May21 Aug21 Nov21 Feb22 May22 Aug22 Nov22 Feb23 May23 Aug23 Nov23 Feb24 May24 Aug24 Feb25 May25 Aug25 Nov25 Feb26 May26
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 4.23 7.75 9.93 12.43 0.00

TSE:5817 vs CSCO, MSI, HPE: E10 Comparison

For the Communication Equipment subindustry, JMACS Japan 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.


JMACS Japan Co Shiller PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, JMACS Japan Co's Shiller PE Ratio distribution charts can be found below:

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


TSE:5817
55GF Score
JMACS Japan Co TSE:5817
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

JMACS Japan 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, JMACS Japan Co's adjusted earnings per share data for the three months ended in Feb. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Feb. 2026 (Change)*Current CPI (Feb. 2026)
=24.96/112.2000*112.2000
=24.960

Current CPI (Feb. 2026) = 112.2000.

JMACS Japan Co Quarterly Data

per share eps CPI Adj_EPS
201602 -42.310 97.800 -48.540
201605 -3.900 98.200 -4.456
201608 -6.171 97.900 -7.072
201611 7.109 98.600 8.090
201702 9.580 98.100 10.957
201705 7.360 98.600 8.375
201708 -4.950 98.500 -5.638
201711 17.420 99.100 19.723
201802 2.939 99.500 3.314
201805 -10.520 99.300 -11.887
201808 -13.895 99.800 -15.621
201811 6.409 100.000 7.191
201902 -4.049 99.700 -4.557
201905 -3.220 100.000 -3.613
201908 -6.890 100.000 -7.731
201911 21.010 100.500 23.456
202002 3.389 100.300 3.791
202005 -3.670 100.100 -4.114
202008 -15.220 100.100 -17.060
202011 10.640 99.500 11.998
202102 -6.055 99.800 -6.807
202105 13.830 99.400 15.611
202108 8.620 99.700 9.701
202111 1.099 100.100 1.232
202202 -15.560 100.700 -17.337
202205 16.810 101.800 18.527
202208 13.900 102.700 15.186
202211 -3.360 103.900 -3.628
202302 16.700 104.000 18.017
202305 9.800 105.100 10.462
202308 1.022 105.900 1.083
202311 -13.718 106.900 -14.398
202402 18.140 106.900 19.039
202405 17.960 108.100 18.641
202408 -1.800 109.100 -1.851
202502 0.000 110.800 0.000
202505 9.250 111.800 9.283
202508 23.250 112.100 23.271
202511 13.730 113.200 13.609
202602 24.960 112.200 24.960

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12.43 mean?
JMACS Japan Co (TSE:5817) has a E10 of 円12.43 as of Feb. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on JMACS Japan Co and its competitors.
Is JMACS Japan Co's E10 too high?
JMACS Japan Co's current E10 is 円12.43. Overall, JMACS Japan Co has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does JMACS Japan Co's E10 compare to CSCO and MSI?
JMACS Japan Co's E10 of 円12.43 can be compared against companies in the Hardware 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 Hardware company?
A good E10 depends on the Hardware 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 JMACS Japan Co and its competitors. JMACS Japan Co's current E10 is 円12.43. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is JMACS Japan Co stock overvalued right now?
Based on GuruFocus' analysis, JMACS Japan Co (TSE:5817) is currently considered Significantly Overvalued. The stock's GF Value™ is 円516.12, compared to a current price of 円1,036.00 — trading 100.7% above its estimated fair value. The current E10 is 円12.43. JMACS Japan Co's overall GF Score™ is 55/100 with 1 warning sign 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 JMACS Japan Co (TSE:5817), the current E10 is 円12.43 as of Feb. 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 JMACS Japan Co (TSE:5817) Overvalued in 2026?

Based on GuruFocus' analysis, JMACS Japan Co stock appears to be overvalued. The current stock price of 円1,036.00 is trading 100.7% above its estimated GF Value™ of 円516.12. GuruFocus considers JMACS Japan Co to be Significantly Overvalued.

Key valuation signals for TSE:5817:

  • E10: 円12.43
  • GF Value™: 円516.12 vs. price of 円1,036.00 (100.7% above fair value)
  • GF Score™: 55/100 with 1 warning sign

No single metric tells the full story. See the TSE:5817 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


JMACS Japan Co Business Description

Address 127-1 Morio, Hyogo Prefecture, Kato, JPN, 673-1331
JMACS Japan Co is engaged in the manufacture and sales of industrial products, entrusted development of automation and labor-saving systems, instrumentation cable, control cable, communication cable, optical fiber cable, and other low-current electric wires.
55GF Score

Get the complete analysis for TSE:5817

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

円1,036.00
Price
円516.12
GF Value