Mk Seiko Co (TSE:5906) E10: 円66.59 (As of Mar. 2026)

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Director of Data and Quant Analytics at GuruFocus
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TSE:5906 Mk Seiko Co Ltd TSE:5906
76 GF Score
Price 円775.00
GF Value 円486.11
Valuation Significantly Overvalued
View Full Analysis

What is Mk Seiko Co E10?

Mk Seiko Co TSE:5906 +0.26% 76 E10 is 円66.59 as of Mar. 2026. GuruFocus rates TSE:5906 with a GF Score™ of 76/100 and a GF Value™ of 円486.11 (Significantly Overvalued).

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.

Mk Seiko Co's adjusted earnings per share data for the three months ended in Mar. 2026 was 円5.724. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円66.59 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was 14.10% 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 Mk Seiko Co was 14.10% per year. The lowest was 6.00% per year. And the median was 13.45% per year.

As of today (2026-09-16), Mk Seiko Co's current stock price is 円775.00. Mk Seiko Co's E10 for the quarter that ended in Mar. 2026 was 円66.59. Mk Seiko Co's Shiller PE Ratio of today is 11.64.

During the past 13 years, the highest Shiller PE Ratio of Mk Seiko Co was 16.74. The lowest was 8.15. And the median was 9.95.


Mk Seiko Co  (TSE:5906) 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.

Mk Seiko Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=775.00/66.587
=11.64

* 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 Mk Seiko Co was 16.74. The lowest was 8.15. And the median was 9.95.


Be Aware

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


Mk Seiko Co E10 Related Terms


Mk Seiko Co E10 Historical Data

* Premium members only.

The historical data trend for Mk Seiko 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.

Mk Seiko Co E10 Chart

Mk Seiko 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 37.89 42.55 44.64 51.66 66.03

Mk Seiko Co 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 52.70 59.08 63.88 66.59 67.35

TSE:5906 vs AAPL: E10 Comparison

For the Consumer Electronics subindustry, Mk Seiko 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.


Mk Seiko Co Shiller PE Ratio vs Hardware Industry

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

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


TSE:5906
76GF Score
Mk Seiko Co Ltd TSE:5906
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Mk Seiko 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, Mk Seiko 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)
=5.7235/112.7000*112.7000
=5.724

Current CPI (Mar. 2026) = 112.7000.

Mk Seiko Co Quarterly Data

per share eps CPI Adj_EPS
201603 -19.990 97.900 -23.012
201606 8.100 98.100 9.306
201609 20.360 98.000 23.414
201612 28.550 98.400 32.699
201703 -14.620 98.100 -16.796
201706 10.390 98.500 11.888
201709 20.290 98.800 23.145
201712 23.330 99.400 26.452
201803 -21.070 99.200 -23.937
201806 12.790 99.200 14.531
201809 20.996 99.900 23.686
201812 38.116 99.700 43.086
201903 -19.246 99.700 -21.756
201906 9.032 99.800 10.200
201909 16.528 100.100 18.609
201912 31.277 100.500 35.074
202003 -26.756 100.300 -30.064
202006 10.509 99.900 11.856
202009 23.732 99.900 26.773
202012 43.085 99.300 48.899
202103 -41.438 99.900 -46.748
202106 14.017 99.500 15.877
202109 16.460 100.100 18.532
202112 20.387 100.100 22.953
202203 -11.981 101.100 -13.356
202206 5.156 101.800 5.708
202209 27.832 103.100 30.423
202212 49.208 104.100 53.273
202303 -2.348 104.400 -2.535
202306 10.988 105.200 11.771
202309 33.750 106.200 35.816
202312 58.255 106.800 61.474
202403 -54.305 107.200 -57.091
202406 35.141 108.200 36.602
202409 33.577 108.900 34.748
202503 -16.632 111.100 -16.872
202506 16.453 111.700 16.600
202509 72.754 112.000 73.208
202512 73.499 113.000 73.304
202603 5.724 112.700 5.724

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66.59 mean?
Mk Seiko Co (TSE:5906) has a E10 of 円66.59 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Mk Seiko Co and its competitors.
Is Mk Seiko Co's E10 too high?
Mk Seiko Co's current E10 is 円66.59. Overall, Mk Seiko Co has a GF Score™ of 76/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Mk Seiko Co's E10 compare to AAPL?
Mk Seiko Co's E10 of 円66.59 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 Mk Seiko Co and its competitors. Mk Seiko Co's current E10 is 円66.59. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Mk Seiko Co stock overvalued right now?
Based on GuruFocus' analysis, Mk Seiko Co (TSE:5906) is currently considered Significantly Overvalued. The stock's GF Value™ is 円486.11, compared to a current price of 円775.00 — trading 59.4% above its estimated fair value. The current E10 is 円66.59. Mk Seiko Co's overall GF Score™ is 76/100. 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 Mk Seiko Co (TSE:5906), the current E10 is 円66.59 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 Mk Seiko Co (TSE:5906) Overvalued in 2026?

Based on GuruFocus' analysis, Mk Seiko Co stock appears to be overvalued. The current stock price of 円775.00 is trading 59.4% above its estimated GF Value™ of 円486.11. GuruFocus considers Mk Seiko Co to be Significantly Overvalued.

Key valuation signals for TSE:5906:

  • E10: 円66.59
  • GF Value™: 円486.11 vs. price of 円775.00 (59.4% above fair value)
  • GF Score™: 76/100

No single metric tells the full story. See the TSE:5906 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Mk Seiko Co Business Description

Address 1825, Amenomiya, Nagano-ken, Chikuma, JPN, 387 8603
Mk Seiko Co Ltd is a Japanese manufacturer and seller of automotive service equipment, information equipment and household equipment. In automotive service equipment, the company offers car washing machines, freon cleaning and charging machines and others. It offers information equipment like large screen televisions for outside and auditoriums, road information equipment and color display equipment for shops. The household products offered by the company are low-temperature farm product storage, bread makers and oil supply pumps.
76GF Score

Get the complete analysis for TSE:5906

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

円775.00
Price
円486.11
GF Value