inspec (TSE:6656) E10: 円-39.22 (As of Apr. 2026)

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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:6656 inspec Inc TSE:6656
65 GF Score
Price 円1,192.00
GF Value 円1,070.81
Valuation Modestly Overvalued
! 8 Warning Signs
View Full Analysis

What is inspec E10?

inspec TSE:6656 -0.50% 65 E10 is 円-39.22 as of Apr. 2026. GuruFocus rates TSE:6656 with a GF Score™ of 65/100 and a GF Value™ of 円1,070.81 (Modestly Overvalued). The stock has 8 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.

inspec's adjusted earnings per share data for the fiscal year that ended in Apr. 2026 was 円19.150. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円-39.22 for the trailing ten years ended in Apr. 2026.

During the past 3 years, the average E10 Growth Rate was -21.90% per year. During the past 5 years, the average E10 Growth Rate was 11.20% 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 inspec was 38.40% per year. The lowest was -21.90% per year. And the median was 20.20% per year.

As of today (2026-07-16), inspec's current stock price is 円 1192.00. inspec's E10 for the fiscal year that ended in Apr. 2026 was 円-39.22. inspec's Shiller PE Ratio of today is .


inspec  (TSE:6656) 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.


Be Aware

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


inspec E10 Related Terms


inspec E10 Historical Data

* Premium members only.

The historical data trend for inspec'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.

inspec E10 Chart

inspec Annual Data
Trend Apr17 Apr18 Apr19 Apr20 Apr21 Apr22 Apr23 Apr24 Apr25 Apr26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only -61.59 -21.66 -32.98 -41.69 -39.22

inspec Semi-Annual Data
Oct16 Apr17 Oct17 Apr18 Oct18 Apr19 Oct19 Apr20 Oct20 Apr21 Oct21 Apr22 Oct22 Apr23 Oct23 Apr24 Oct24 Apr25 Oct25 Apr26
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 -32.98 0.00 -41.69 0.00 -39.22

TSE:6656 vs AMAT, LRCX, KLAC: E10 Comparison

For the Semiconductor Equipment & Materials subindustry, inspec'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.


inspec Shiller PE Ratio vs Semiconductors Industry

For the Semiconductors industry and Technology sector, inspec's Shiller PE Ratio distribution charts can be found below:

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


TSE:6656
65GF Score
inspec Inc TSE:6656
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

inspec 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, inspec's adjusted earnings per share data for the fiscal year that ended in Apr. 2026 was:

Adj_EPS=Earnings per Share (Diluted) /CPI of Apr. 2026 (Change)*Current CPI (Apr. 2026)
=19.15/113.0000*113.0000
=19.150

Current CPI (Apr. 2026) = 113.0000.

inspec Annual Data

per_share_eps CPI Adj_EPS
201704 39.780 98.500 45.636
201804 -143.610 99.100 -163.753
201904 66.610 100.000 75.269
202004 48.310 100.200 54.481
202104 -315.950 99.100 -360.266
202204 40.260 101.500 44.821
202304 19.680 105.100 21.159
202404 -88.340 107.700 -92.687
202504 -35.510 111.500 -35.988
202604 19.150 113.000 19.150

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-39.22 mean?
inspec (TSE:6656) has a E10 of 円-39.22 as of Apr. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on inspec and its competitors.
Is inspec's E10 too high?
inspec's current E10 is 円-39.22. Overall, inspec has a GF Score™ of 65/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does inspec's E10 compare to AMAT and LRCX?
inspec's E10 of 円-39.22 can be compared against companies in the Semiconductors 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 Semiconductors company?
A good E10 depends on the Semiconductors 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 inspec and its competitors. inspec's current E10 is 円-39.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is inspec stock overvalued right now?
Based on GuruFocus' analysis, inspec (TSE:6656) is currently considered Modestly Overvalued. The stock's GF Value™ is 円1,070.81, compared to a current price of 円1,192.00 — trading 11.3% above its estimated fair value. The current E10 is 円-39.22. inspec's overall GF Score™ is 65/100 with 8 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 inspec (TSE:6656), the current E10 is 円-39.22 as of Apr. 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 inspec (TSE:6656) Overvalued in 2026?

Based on GuruFocus' analysis, inspec stock appears to be overvalued. The current stock price of 円1,192.00 is trading 11.3% above its estimated GF Value™ of 円1,070.81. GuruFocus considers inspec to be Modestly Overvalued.

Key valuation signals for TSE:6656:

  • E10: 円-39.22
  • GF Value™: 円1,070.81 vs. price of 円1,192.00 (11.3% above fair value)
  • GF Score™: 65/100 with 8 warning signs

No single metric tells the full story. See the TSE:6656 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


inspec Business Description

Address 79-1 Kumokai Arayashiki Kakunodatemachi, Senhoku-shi, JPN, 014-0341
inspec Inc is engaged as manufacturer of visual inspection equipment that inspects the appearance of semiconductors and various IT related services. The company also offers services like regular maintenance, calibration service, and operation support services.
65GF Score

Get the complete analysis for TSE:6656

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

円1,192.00
Price
円1,070.81
GF Value