SAMCO (TSE:6387) E10: 円108.47 (As of Jan. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
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:6387 SAMCO Inc TSE:6387
72 GF Score
Price 円12,160.00
GF Value 円5,167.25
Valuation Significantly Overvalued
! 1 Warning Sign
View Full Analysis

What is SAMCO E10?

SAMCO TSE:6387 -5.88% 72 E10 is 円108.47 as of Jan. 2026. GuruFocus rates TSE:6387 with a GF Score™ of 72/100 and a GF Value™ of 円5,167.25 (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.

SAMCO's adjusted earnings per share data for the three months ended in Jan. 2026 was 円78.080. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円108.47 for the trailing ten years ended in Jan. 2026.

During the past 12 months, SAMCO's average E10 Growth Rate was 14.70% per year. During the past 3 years, the average E10 Growth Rate was 23.30% per year. During the past 5 years, the average E10 Growth Rate was 22.00% 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 SAMCO was 25.70% per year. The lowest was 6.50% per year. And the median was 19.30% per year.

As of today (2026-07-15), SAMCO's current stock price is 円12160.00. SAMCO's E10 for the quarter that ended in Jan. 2026 was 円108.47. SAMCO's Shiller PE Ratio of today is 112.10.

During the past 13 years, the highest Shiller PE Ratio of SAMCO was 134.42. The lowest was 21.74. And the median was 53.62.


SAMCO  (TSE:6387) 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.

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

Shiller PE Ratio=Share Price/E10
=12160.00/108.47
=112.10

* 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 SAMCO was 134.42. The lowest was 21.74. And the median was 53.62.


Be Aware

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


SAMCO E10 Related Terms


SAMCO E10 Historical Data

* Premium members only.

The historical data trend for SAMCO'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.

SAMCO E10 Chart

SAMCO Annual Data
Trend Jul16 Jul17 Jul18 Jul19 Jul20 Jul21 Jul22 Jul23 Jul24 Jul25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 42.88 54.58 67.89 85.21 102.25

SAMCO Quarterly Data
Jul21 Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26 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 97.85 102.25 102.90 108.47 0.00

TSE:6387 vs AMAT, LRCX, KLAC: E10 Comparison

For the Semiconductor Equipment & Materials subindustry, SAMCO'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.


SAMCO Shiller PE Ratio vs Semiconductors Industry

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

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


TSE:6387
72GF Score
SAMCO Inc TSE:6387
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

SAMCO 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, SAMCO's adjusted earnings per share data for the three months ended in Jan. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Jan. 2026 (Change)*Current CPI (Jan. 2026)
=78.08/112.9000*112.9000
=78.080

Current CPI (Jan. 2026) = 112.9000.

SAMCO Quarterly Data

per share eps CPI Adj_EPS
201604 -0.440 98.100 -0.506
201607 9.210 97.900 10.621
201610 -15.840 98.600 -18.137
201701 14.100 98.200 16.211
201704 -27.640 98.500 -31.681
201707 -3.644 98.300 -4.185
201710 -11.460 98.800 -13.095
201801 17.530 99.500 19.891
201804 12.175 99.100 13.870
201807 32.520 99.200 37.011
201810 3.350 100.200 3.775
201901 19.690 99.700 22.297
201904 3.421 100.000 3.862
201907 0.369 99.800 0.417
201910 10.980 100.400 12.347
202001 31.540 100.500 35.432
202004 13.520 100.200 15.234
202007 22.970 100.000 25.933
202010 -6.430 99.800 -7.274
202101 30.200 99.800 34.164
202104 16.356 99.100 18.634
202107 53.956 99.700 61.100
202110 6.010 99.900 6.792
202201 41.508 100.300 46.722
202204 25.190 101.500 28.019
202207 58.360 102.300 64.407
202210 26.920 103.700 29.308
202301 60.290 104.700 65.012
202304 33.148 105.100 35.608
202307 49.705 105.700 53.091
202310 24.230 107.100 25.542
202401 68.796 106.900 72.657
202404 28.020 107.700 29.373
202407 62.199 108.600 64.662
202410 11.160 109.500 11.507
202501 77.780 111.200 78.969
202504 31.670 111.500 32.068
202507 90.690 111.900 91.500
202510 15.440 112.800 15.454
202601 78.080 112.900 78.080

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108.47 mean?
SAMCO (TSE:6387) has a E10 of 円108.47 as of Jan. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on SAMCO and its competitors.
Is SAMCO's E10 too high?
SAMCO's current E10 is 円108.47. Overall, SAMCO has a GF Score™ of 72/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does SAMCO's E10 compare to AMAT and LRCX?
SAMCO's E10 of 円108.47 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 SAMCO and its competitors. SAMCO's current E10 is 円108.47. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is SAMCO stock overvalued right now?
Based on GuruFocus' analysis, SAMCO (TSE:6387) is currently considered Significantly Overvalued. The stock's GF Value™ is 円5,167.25, compared to a current price of 円12,160.00 — trading 135.3% above its estimated fair value. The current E10 is 円108.47. SAMCO'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 SAMCO (TSE:6387), the current E10 is 円108.47 as of Jan. 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 SAMCO (TSE:6387) Overvalued in 2026?

Based on GuruFocus' analysis, SAMCO stock appears to be overvalued. The current stock price of 円12,160.00 is trading 135.3% above its estimated GF Value™ of 円5,167.25. GuruFocus considers SAMCO to be Significantly Overvalued.

Key valuation signals for TSE:6387:

  • E10: 円108.47
  • GF Value™: 円5,167.25 vs. price of 円12,160.00 (135.3% above fair value)
  • GF Score™: 72/100 with 1 warning sign

No single metric tells the full story. See the TSE:6387 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


SAMCO Business Description

Other Exchanges SMU:Germany
Address 36 Waraya-cho, Takeda, Fushimi-ku, Kyoto, JPN, 612-8443
SAMCO Inc is engaged in the manufacturing and sales of semiconductor process equipment. It offers CVD equipment, dry etching equipment, dry cleaning equipment, and others in the field of optoelectronics such as LED and semiconductor lasers, electronic components such as MEMS and high-frequency devices, and semiconductor device fields such as 3D packages and defects analysis doing.
72GF Score

Get the complete analysis for TSE:6387

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

円12,160.00
Price
円5,167.25
GF Value