Seiko (TSE:6286) E10: 円82.85 (As of Mar. 2026)

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Director of Data and Quant Analytics at GuruFocus
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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:6286 Seiko Corp TSE:6286
72 GF Score
Price 円1,506.00
GF Value 円972.08
Valuation Significantly Overvalued
! 1 Warning Sign
View Full Analysis

What is Seiko E10?

Seiko TSE:6286 +0.40% 72 E10 is 円82.85 as of Mar. 2026. GuruFocus rates TSE:6286 with a GF Score™ of 72/100 and a GF Value™ of 円972.08 (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.

Seiko's adjusted earnings per share data for the three months ended in Mar. 2026 was 円53.900. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円82.85 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was 24.60% 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 Seiko was 24.60% per year. The lowest was -11.10% per year. And the median was -9.60% per year.

As of today (2026-08-27), Seiko's current stock price is 円1506.00. Seiko's E10 for the quarter that ended in Mar. 2026 was 円82.85. Seiko's Shiller PE Ratio of today is 18.18.

During the past 13 years, the highest Shiller PE Ratio of Seiko was 23.47. The lowest was 7.43. And the median was 14.65.


Seiko  (TSE:6286) 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.

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

Shiller PE Ratio=Share Price/E10
=1506.00/82.85
=18.18

* 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 Seiko was 23.47. The lowest was 7.43. And the median was 14.65.


Be Aware

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


Seiko E10 Related Terms


Seiko E10 Historical Data

* Premium members only.

The historical data trend for Seiko'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.

Seiko E10 Chart

Seiko 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 43.83 42.86 52.55 0.00 82.85

Seiko Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 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 63.09 59.84 77.54 82.85 0.00

TSE:6286 vs GEV, ETN, PH: E10 Comparison

For the Specialty Industrial Machinery subindustry, Seiko'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.


Seiko Shiller PE Ratio vs Industrial Products Industry

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

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


TSE:6286
72GF Score
Seiko Corp TSE:6286
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Seiko 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, Seiko'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)
=53.9/112.7000*112.7000
=53.900

Current CPI (Mar. 2026) = 112.7000.

Seiko Quarterly Data

per share eps CPI Adj_EPS
201512 8.510 98.100 9.777
201603 54.040 97.900 62.209
201606 -16.690 98.100 -19.174
201609 13.397 98.000 15.407
201612 13.890 98.400 15.909
201703 53.227 98.100 61.149
201706 31.150 98.500 35.641
201709 23.842 98.800 27.196
201712 18.634 99.400 21.127
201803 78.477 99.200 89.157
201806 -17.370 99.200 -19.734
201809 17.960 99.900 20.261
201812 23.960 99.700 27.084
201903 34.530 99.700 39.032
201906 -16.920 99.800 -19.107
201909 20.140 100.100 22.675
201912 13.120 100.500 14.713
202003 25.385 100.300 28.523
202006 -10.190 99.900 -11.496
202009 4.968 99.900 5.605
202012 26.290 99.300 29.838
202103 -152.790 99.900 -172.367
202106 13.000 99.500 14.725
202109 9.677 100.100 10.895
202112 11.119 100.100 12.519
202203 83.010 101.100 92.534
202206 -8.120 101.800 -8.989
202209 -7.870 103.100 -8.603
202212 32.120 104.100 34.774
202303 35.489 104.400 38.310
202306 -0.400 105.200 -0.429
202309 30.641 106.200 32.516
202312 35.460 106.800 37.419
202403 54.810 107.200 57.622
202409 0.000 108.900 0.000
202503 0.000 111.100 0.000
202506 30.620 111.700 30.894
202509 -30.620 112.000 -30.811
202512 136.780 113.000 136.417
202603 53.900 112.700 53.900

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82.85 mean?
Seiko (TSE:6286) has a E10 of 円82.85 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Seiko and its competitors.
Is Seiko's E10 too high?
Seiko's current E10 is 円82.85. Overall, Seiko has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Seiko's E10 compare to GEV and ETN?
Seiko's E10 of 円82.85 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 Seiko and its competitors. Seiko's current E10 is 円82.85. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Seiko stock overvalued right now?
Based on GuruFocus' analysis, Seiko (TSE:6286) is currently considered Significantly Overvalued. The stock's GF Value™ is 円972.08, compared to a current price of 円1,506.00 — trading 54.9% above its estimated fair value. The current E10 is 円82.85. Seiko's overall GF Score™ is 72/100 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 Seiko (TSE:6286), the current E10 is 円82.85 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 Seiko (TSE:6286) Overvalued in 2026?

Based on GuruFocus' analysis, Seiko stock appears to be overvalued. The current stock price of 円1,506.00 is trading 54.9% above its estimated GF Value™ of 円972.08. GuruFocus considers Seiko to be Significantly Overvalued.

Key valuation signals for TSE:6286:

  • E10: 円82.85
  • GF Value™: 円972.08 vs. price of 円1,506.00 (54.9% above fair value)
  • GF Score™: 72/100 with 1 warning sign

No single metric tells the full story. See the TSE:6286 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Seiko Business Description

Address 2-8-1, Tenjin, Shimizu-ku, Shizuoka-sh, Shizuoka, Tokyo, JPN, 424 0809
Seiko Corp is engaged in manufacturing packaging machinery and cold-forged products. It offers bottling and packaging machinery for use in industrial fields. Its cold-forged products include automobile parts. The company also acts carries out the distribution of perrier rinser and air blowers in Japan. The products offered by the company are used in a wide range of industrial fields; food, drinks, cosmetics, toiletry, chemical, pharmaceutical industries, and others.
72GF Score

Get the complete analysis for TSE:6286

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

円1,506.00
Price
円972.08
GF Value