Core (TSE:2359) E10: 円121.53 (As of Mar. 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.
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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:2359 Core Corp TSE:2359
80 GF Score
Price 円2,126.00
GF Value 円2,076.01
Valuation Fairly Valued
! 2 Warning Signs
View Full Analysis

What is Core E10?

Core TSE:2359 -0.14% 80 E10 is 円121.53 as of Mar. 2026. GuruFocus rates TSE:2359 with a GF Score™ of 80/100 and a GF Value™ of 円2,076.01 (Fairly Valued). The stock has 2 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.

Core's adjusted earnings per share data for the three months ended in Mar. 2026 was 円57.880. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円121.53 for the trailing ten years ended in Mar. 2026.

During the past 3 years, the average E10 Growth Rate was 17.10% 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 Core was 18.90% per year. The lowest was 10.50% per year. And the median was 15.60% per year.

As of today (2026-08-17), Core's current stock price is 円2126.00. Core's E10 for the quarter that ended in Mar. 2026 was 円121.53. Core's Shiller PE Ratio of today is 17.49.

During the past 13 years, the highest Shiller PE Ratio of Core was 37.79. The lowest was 15.97. And the median was 22.98.


Core  (TSE:2359) 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.

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

Shiller PE Ratio=Share Price/E10
=2126.00/121.53
=17.49

* 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 Core was 37.79. The lowest was 15.97. And the median was 22.98.


Be Aware

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


Core E10 Related Terms


Core E10 Historical Data

* Premium members only.

The historical data trend for Core'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.

Core E10 Chart

Core 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 63.67 75.63 91.81 0.00 121.53

Core 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 105.27 110.77 117.14 121.53 0.00

TSE:2359 vs IBM, ACN, FISV: E10 Comparison

For the Information Technology Services subindustry, Core'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.


Core Shiller PE Ratio vs Software Industry

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

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


TSE:2359
80GF Score
Core Corp TSE:2359
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Core 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, Core'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)
=57.88/112.7000*112.7000
=57.880

Current CPI (Mar. 2026) = 112.7000.

Core Quarterly Data

per share eps CPI Adj_EPS
201603 20.275 97.900 23.340
201606 5.990 98.100 6.881
201609 18.290 98.000 21.034
201612 21.460 98.400 24.579
201703 11.740 98.100 13.487
201706 9.000 98.500 10.297
201709 11.920 98.800 13.597
201712 17.520 99.400 19.864
201803 27.030 99.200 30.708
201806 8.260 99.200 9.384
201809 18.320 99.900 20.667
201812 21.200 99.700 23.964
201903 40.070 99.700 45.295
201906 7.220 99.800 8.153
201909 23.680 100.100 26.661
201912 22.290 100.500 24.996
202003 29.570 100.300 33.226
202006 11.000 99.900 12.409
202009 25.820 99.900 29.128
202012 24.680 99.300 28.010
202103 38.780 99.900 43.749
202106 21.790 99.500 24.681
202109 30.390 100.100 34.215
202112 35.950 100.100 40.475
202203 25.680 101.100 28.626
202206 23.710 101.800 26.249
202209 33.390 103.100 36.499
202212 41.460 104.100 44.885
202303 39.240 104.400 42.360
202306 26.420 105.200 28.304
202309 38.720 106.200 41.090
202312 44.710 106.800 47.180
202403 48.620 107.200 51.114
202406 31.810 108.200 33.133
202409 34.720 108.900 35.932
202503 0.000 111.100 0.000
202506 31.810 111.700 32.095
202509 47.350 112.000 47.646
202512 63.270 113.000 63.102
202603 57.880 112.700 57.880

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121.53 mean?
Core (TSE:2359) has a E10 of 円121.53 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Core and its competitors.
Is Core's E10 too high?
Core's current E10 is 円121.53. Overall, Core has a GF Score™ of 80/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Core's E10 compare to IBM and ACN?
Core's E10 of 円121.53 can be compared against companies in the Software 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 Software company?
A good E10 depends on the Software 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 Core and its competitors. Core's current E10 is 円121.53. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Core stock overvalued right now?
Based on GuruFocus' analysis, Core (TSE:2359) is currently considered Fairly Valued. The stock's GF Value™ is 円2,076.01, compared to a current price of 円2,126.00 — trading 2.4% above its estimated fair value. The current E10 is 円121.53. Core's overall GF Score™ is 80/100 with 2 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 Core (TSE:2359), the current E10 is 円121.53 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 Core (TSE:2359) Overvalued in 2026?

Based on GuruFocus' analysis, Core stock appears to be overvalued. The current stock price of 円2,126.00 is trading 2.4% above its estimated GF Value™ of 円2,076.01. GuruFocus considers Core to be Fairly Valued.

Key valuation signals for TSE:2359:

  • E10: 円121.53
  • GF Value™: 円2,076.01 vs. price of 円2,126.00 (2.4% above fair value)
  • GF Score™: 80/100 with 2 warning signs

No single metric tells the full story. See the TSE:2359 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Core Business Description

Address 1-22-3, Sangenjaya, Setagaya-ku, Tokyo, JPN, 154-8552
Core Corp is an independent information technology services company. It is organized into two business segments - System Integration business and product solutions business. The system integration segment focuses on embedded contract development in smartphones, automotive-related and equipment control fields. Its product solutions segment operates in the fields of security, cloud big data utilization cloud service, and global navigation satellite system. It primarily serves medical/healthcare, automobiles and agriculture markets.
80GF Score

Get the complete analysis for TSE:2359

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

円2,126.00
Price
円2,076.01
GF Value