Restar (TSE:3156) E10: 円0.00 (As of Mar. 2026)


TSE:3156 Restar Corp TSE:3156
84 GF Score
Price 円4,195.00
GF Value 円3,363.19
Valuation Modestly Overvalued
! 6 Warning Signs
View Full Analysis

What is Restar E10?

Restar TSE:3156 -2.56% 84 E10 is 円0.00 as of Mar. 2026. GuruFocus rates TSE:3156 with a GF Score™ of 84/100 and a GF Value™ of 円3,363.19 (Modestly Overvalued). The stock has 6 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.

Restar's adjusted earnings per share data for the three months ended in Mar. 2026 was 円138.640. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円0.00 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Restar's average E10 Growth Rate was -100.00% 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 Restar was -5.10% per year. The lowest was -8.30% per year. And the median was -6.70% per year.

As of today (2026-06-30), Restar's current stock price is 円4195.00. Restar's E10 for the quarter that ended in Mar. 2026 was 円0.00. Restar's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of Restar was 91.25. The lowest was 13.87. And the median was 31.27.


Restar  (TSE:3156) 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.

During the past 13 years, the highest Shiller P/E Ratio of Restar was 91.25. The lowest was 13.87. And the median was 31.27.


Be Aware

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


Restar E10 Related Terms


Restar E10 Historical Data

* Premium members only.

The historical data trend for Restar'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.

Restar E10 Chart

Restar 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 73.57 64.28 57.82 56.74 0.00

Restar Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 56.74 49.99 46.44 48.33 0.00

TSE:3156 vs NVDA, AVGO, MU: E10 Comparison

For the Semiconductors subindustry, Restar'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.


Restar Shiller PE Ratio vs Semiconductors Industry

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

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


TSE:3156
84GF Score
Restar Corp TSE:3156
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Restar 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, Restar'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)
=138.64/112.7000*112.7000
=138.640

Current CPI (Mar. 2026) = 112.7000.

Restar Quarterly Data

per share eps CPI Adj_EPS
201606 -21.060 98.100 -24.194
201609 -50.140 98.000 -57.661
201612 -136.713 98.400 -156.581
201703 -345.610 98.100 -397.046
201706 40.140 98.500 45.927
201709 51.029 98.800 58.208
201712 60.330 99.400 68.402
201803 -15.890 99.200 -18.052
201806 57.120 99.200 64.893
201809 69.760 99.900 78.698
201812 50.010 99.700 56.531
201903 -37.210 99.700 -42.062
201906 117.970 99.800 133.219
201909 34.488 100.100 38.829
201912 39.730 100.500 44.553
202003 -1.896 100.300 -2.130
202006 24.800 99.900 27.978
202009 41.172 99.900 46.447
202012 175.720 99.300 199.432
202103 -106.856 99.900 -120.547
202106 83.840 99.500 94.962
202109 47.750 100.100 53.760
202112 48.556 100.100 54.668
202203 17.970 101.100 20.032
202206 73.270 101.800 81.115
202209 79.140 103.100 86.509
202212 41.890 104.100 45.351
202303 40.300 104.400 43.504
202306 22.410 105.200 24.008
202309 88.810 106.200 94.246
202312 46.640 106.800 49.217
202403 74.050 107.200 77.849
202406 99.980 108.200 104.138
202409 45.400 108.900 46.984
202412 36.460 110.700 37.119
202503 74.000 111.100 75.066
202506 12.390 111.700 12.501
202509 46.480 112.000 46.771
202512 76.050 113.000 75.848
202603 138.640 112.700 138.640

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0.00 mean?
Restar (TSE:3156) has a E10 of 円0.00 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Restar and its competitors.
Is Restar's E10 too high?
Restar's current E10 is 円0.00. Overall, Restar has a GF Score™ of 84/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Restar's E10 compare to NVDA and AVGO?
Restar's E10 of 円0.00 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 Restar and its competitors. Restar's current E10 is 円0.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Restar stock overvalued right now?
Based on GuruFocus' analysis, Restar (TSE:3156) is currently considered Modestly Overvalued. The stock's GF Value™ is 円3,363.19, compared to a current price of 円4,195.00 — trading 24.7% above its estimated fair value. The current E10 is 円0.00. Restar's overall GF Score™ is 84/100 with 6 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 Restar (TSE:3156), the current E10 is 円0.00 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 Restar (TSE:3156) Overvalued in 2026?

Based on GuruFocus' analysis, Restar stock appears to be overvalued. The current stock price of 円4,195.00 is trading 24.7% above its estimated GF Value™ of 円3,363.19. GuruFocus considers Restar to be Modestly Overvalued.

Key valuation signals for TSE:3156:

  • E10: 円0.00
  • GF Value™: 円3,363.19 vs. price of 円4,195.00 (24.7% above fair value)
  • GF Score™: 84/100 with 6 warning signs

No single metric tells the full story. See the TSE:3156 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Restar Business Description

Address Lester Building, 10-9 Konan 2-chome, Minato-ku, Tokyo, JPN, 108-0075
Restar Corp manufactures and distributes semiconductors and electronic components. The company offers semiconductors/modules, optical components, displays, industrial lasers, sensors, measuring instruments/filters, batteries, quartz crystal devices, adhesive materials/optical materials, and speakers/receivers. It also provides electronic manufacturing services.
84GF Score

Get the complete analysis for TSE:3156

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

円4,195.00
Price
円3,363.19
GF Value