TerraSky Co (TSE:3915) E10: 円58.92 (As of Feb. 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:3915 TerraSky Co Ltd TSE:3915
90 GF Score
Price 円2,347.00
GF Value 円3,079.90
Valuation Modestly Undervalued
! 2 Warning Signs
View Full Analysis

What is TerraSky Co E10?

TerraSky Co TSE:3915 -2.45% 90 E10 is 円58.92 as of Feb. 2026. GuruFocus rates TSE:3915 with a GF Score™ of 90/100 and a GF Value™ of 円3,079.90 (Modestly Undervalued). 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.

TerraSky Co's adjusted earnings per share data for the three months ended in Feb. 2026 was 円38.920. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円58.92 for the trailing ten years ended in Feb. 2026.

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.

As of today (2026-08-22), TerraSky Co's current stock price is 円2347.00. TerraSky Co's E10 for the quarter that ended in Feb. 2026 was 円58.92. TerraSky Co's Shiller PE Ratio of today is 39.83.

During the past 13 years, the highest Shiller PE Ratio of TerraSky Co was 61.36. The lowest was 26.68. And the median was 41.34.


TerraSky Co  (TSE:3915) 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.

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

Shiller PE Ratio=Share Price/E10
=2347.00/58.92
=39.83

* 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 TerraSky Co was 61.36. The lowest was 26.68. And the median was 41.34.


Be Aware

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


TerraSky Co E10 Related Terms


TerraSky Co E10 Historical Data

* Premium members only.

The historical data trend for TerraSky Co'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.

TerraSky Co E10 Chart

TerraSky Co Annual Data
Trend Feb17 Feb18 Feb19 Feb20 Feb21 Feb22 Feb23 Feb24 Feb25 Feb26
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 58.92

TerraSky Co Quarterly Data
May21 Aug21 Nov21 Feb22 May22 Aug22 Nov22 Feb23 May23 Aug23 Nov23 Feb24 May24 Aug24 Feb25 May25 Aug25 Nov25 Feb26 May26
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 48.78 50.27 56.01 58.92 0.00

TSE:3915 vs MSFT, ORCL, PLTR: E10 Comparison

For the Software - Infrastructure subindustry, TerraSky Co'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.


TerraSky Co Shiller PE Ratio vs Software Industry

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

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


TSE:3915
90GF Score
TerraSky Co Ltd TSE:3915
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

TerraSky Co 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, TerraSky Co's adjusted earnings per share data for the three months ended in Feb. 2026 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Feb. 2026 (Change)*Current CPI (Feb. 2026)
=38.92/112.2000*112.2000
=38.920

Current CPI (Feb. 2026) = 112.2000.

TerraSky Co Quarterly Data

per share eps CPI Adj_EPS
201602 6.983 97.800 8.011
201605 1.178 98.200 1.346
201608 0.900 97.900 1.031
201611 2.038 98.600 2.319
201702 6.995 98.100 8.000
201705 2.750 98.600 3.129
201708 3.990 98.500 4.545
201711 4.550 99.100 5.151
201802 3.360 99.500 3.789
201805 -1.560 99.300 -1.763
201808 5.232 99.800 5.882
201811 1.610 100.000 1.806
201902 7.610 99.700 8.564
201905 40.030 100.000 44.914
201908 9.540 100.000 10.704
201911 9.360 100.500 10.450
202002 9.740 100.300 10.896
202005 165.820 100.100 185.864
202008 7.380 100.100 8.272
202011 5.230 99.500 5.898
202102 12.710 99.800 14.289
202105 4.170 99.400 4.707
202108 6.020 99.700 6.775
202111 5.290 100.100 5.929
202202 8.350 100.700 9.304
202205 3.810 101.800 4.199
202208 6.920 102.700 7.560
202211 7.250 103.900 7.829
202302 8.990 104.000 9.699
202305 2.770 105.100 2.957
202308 6.200 105.900 6.569
202311 -0.070 106.900 -0.073
202402 14.350 106.900 15.061
202405 13.620 108.100 14.137
202408 14.870 109.100 15.293
202502 0.000 110.800 0.000
202505 16.510 111.800 16.569
202508 15.030 112.100 15.043
202511 51.350 113.200 50.896
202602 38.920 112.200 38.920

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58.92 mean?
TerraSky Co (TSE:3915) has a E10 of 円58.92 as of Feb. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on TerraSky Co and its competitors.
Is TerraSky Co's E10 too high?
TerraSky Co's current E10 is 円58.92. Overall, TerraSky Co has a GF Score™ of 90/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does TerraSky Co's E10 compare to MSFT and ORCL?
TerraSky Co's E10 of 円58.92 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 TerraSky Co and its competitors. TerraSky Co's current E10 is 円58.92. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TerraSky Co stock overvalued right now?
Based on GuruFocus' analysis, TerraSky Co (TSE:3915) is currently considered Modestly Undervalued. The stock's GF Value™ is 円3,079.90, compared to a current price of 円2,347.00 — trading 23.8% below its estimated fair value. The current E10 is 円58.92. TerraSky Co's overall GF Score™ is 90/100 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 TerraSky Co (TSE:3915), the current E10 is 円58.92 as of Feb. 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 TerraSky Co (TSE:3915) Overvalued in 2026?

Based on GuruFocus' analysis, TerraSky Co stock appears to be undervalued. The current stock price of 円2,347.00 is trading 23.8% below its estimated GF Value™ of 円3,079.90. GuruFocus considers TerraSky Co to be Modestly Undervalued.

Key valuation signals for TSE:3915:

  • E10: 円58.92
  • GF Value™: 円3,079.90 vs. price of 円2,347.00 (23.8% below fair value)
  • GF Score™: 90/100 with 2 warning signs

No single metric tells the full story. See the TSE:3915 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


TerraSky Co Business Description

Address 2-11-2 Nihonbashi, 15th-17th Floor, Taiyo Life Nihonbashi Building, Chuo-ku, Tokyo, JPN, 103-0027
TerraSky Co Ltd provides cloud solutions and products in Japan. Its products and services include cloud integration services comprising Salesforce, Amazon Web Services, and Cloud ERP concierge services; system planning services; development tools; data linkage foundations, such as DataSpider Cloud, SkyOnDemand, and DCSpider; and Salesforce screen/application development, including SkyVisualEditor and SuPICE. The company's products and services also comprise Cloud ERP, such as GLOVIA OM and ServiceMax; and social ware and insurance agency solutions. The company consists of two business segments: Solutions Business and Products Business.
90GF Score

Get the complete analysis for TSE:3915

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

円2,347.00
Price
円3,079.90
GF Value