OYO (TSE:9755) E10: 円105.05 (As of Dec. 2025)


TSE:9755 OYO Corp TSE:9755
82 GF Score
Price 円2,778.00
GF Value 円3,087.05
Valuation Modestly Undervalued
! 3 Warning Signs
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What is OYO E10?

OYO TSE:9755 +0.80% 82 E10 is 円105.05 as of Dec. 2025. GuruFocus rates TSE:9755 with a GF Score™ of 82/100 and a GF Value™ of 円3,087.05 (Modestly Undervalued). The stock has 3 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.

OYO's adjusted earnings per share data for the three months ended in Dec. 2025 was 円50.020. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is 円105.05 for the trailing ten years ended in Dec. 2025.

During the past 12 months, OYO's average E10 Growth Rate was 11.80% per year. During the past 3 years, the average E10 Growth Rate was 9.40% per year. During the past 5 years, the average E10 Growth Rate was 3.50% 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 OYO was 12.60% per year. The lowest was -0.10% per year. And the median was 4.40% per year.

As of today (2026-07-04), OYO's current stock price is 円2778.00. OYO's E10 for the quarter that ended in Dec. 2025 was 円105.05. OYO's Shiller PE Ratio of today is 26.44.

During the past 13 years, the highest Shiller PE Ratio of OYO was 34.71. The lowest was 13.44. And the median was 22.44.


OYO  (TSE:9755) 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.

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

Shiller PE Ratio=Share Price/E10
=2778.00/105.05
=26.44

* 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 OYO was 34.71. The lowest was 13.44. And the median was 22.44.


Be Aware

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


OYO E10 Related Terms


OYO E10 Historical Data

* Premium members only.

The historical data trend for OYO'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.

OYO E10 Chart

OYO Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
E10
Get a 7-Day Free Trial Premium Member Only Premium Member Only 92.62 80.32 88.43 94.00 105.05

OYO 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 99.63 99.53 100.19 105.05 0.00

TSE:9755 vs PWR, FIX, EME: E10 Comparison

For the Engineering & Construction subindustry, OYO'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.


OYO Shiller PE Ratio vs Construction Industry

For the Construction industry and Industrials sector, OYO's Shiller PE Ratio distribution charts can be found below:

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


TSE:9755
82GF Score
OYO Corp TSE:9755
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

OYO 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, OYO's adjusted earnings per share data for the three months ended in Dec. 2025 was:

Adj_EPS= Earnings per Share (Diluted) /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=50.02/113.0000*113.0000
=50.020

Current CPI (Dec. 2025) = 113.0000.

OYO Quarterly Data

per share eps CPI Adj_EPS
201603 19.550 97.900 22.565
201606 -6.352 98.100 -7.317
201609 14.181 98.000 16.352
201612 23.620 98.400 27.125
201703 31.600 98.100 36.400
201706 -10.672 98.500 -12.243
201709 -5.835 98.800 -6.674
201712 12.519 99.400 14.232
201803 30.500 99.200 34.743
201806 -4.524 99.200 -5.153
201809 1.457 99.900 1.648
201812 3.025 99.700 3.429
201903 26.540 99.700 30.080
201906 4.251 99.800 4.813
201909 21.810 100.100 24.621
201912 30.710 100.500 34.530
202003 45.460 100.300 51.216
202006 -2.259 99.900 -2.555
202009 18.458 99.900 20.878
202012 6.520 99.300 7.420
202103 56.570 99.900 63.988
202106 10.000 99.500 11.357
202109 20.660 100.100 23.322
202112 25.640 100.100 28.944
202203 32.000 101.100 35.767
202206 -7.065 101.800 -7.842
202209 16.430 103.100 18.008
202212 31.680 104.100 34.388
202303 40.260 104.400 43.576
202306 9.603 105.200 10.315
202309 23.040 106.200 24.515
202312 94.241 106.800 99.712
202403 67.500 107.200 71.152
202406 15.080 108.200 15.749
202409 36.510 108.900 37.885
202412 51.160 110.700 52.223
202503 103.660 111.100 105.433
202506 9.400 111.700 9.509
202509 26.130 112.000 26.363
202512 50.020 113.000 50.020

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105.05 mean?
OYO (TSE:9755) has a E10 of 円105.05 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on OYO and its competitors.
Is OYO's E10 too high?
OYO's current E10 is 円105.05. Overall, OYO has a GF Score™ of 82/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does OYO's E10 compare to PWR and FIX?
OYO's E10 of 円105.05 can be compared against companies in the Construction 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 Construction company?
A good E10 depends on the Construction 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 OYO and its competitors. OYO's current E10 is 円105.05. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is OYO stock overvalued right now?
Based on GuruFocus' analysis, OYO (TSE:9755) is currently considered Modestly Undervalued. The stock's GF Value™ is 円3,087.05, compared to a current price of 円2,778.00 — trading 10% below its estimated fair value. The current E10 is 円105.05. OYO's overall GF Score™ is 82/100 with 3 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 OYO (TSE:9755), the current E10 is 円105.05 as of Dec. 2025. 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 OYO (TSE:9755) Overvalued in 2026?

Based on GuruFocus' analysis, OYO stock appears to be undervalued. The current stock price of 円2,778.00 is trading 10% below its estimated GF Value™ of 円3,087.05. GuruFocus considers OYO to be Modestly Undervalued.

Key valuation signals for TSE:9755:

  • E10: 円105.05
  • GF Value™: 円3,087.05 vs. price of 円2,778.00 (10% below fair value)
  • GF Score™: 82/100 with 3 warning signs

No single metric tells the full story. See the TSE:9755 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


OYO Business Description

Address 7 Kanda Mitoshiro-cho, Sumitomo Fudosan Kanda Building 9th Floor, Tokyo, JPN, 101-8486
OYO Corp is a Japanese based company, engages in the geological, geophysical, and geotechnical research and consulting business. The company offers survey and analysis services for ground and groundwater, and ocean water, as well as advisory and consulting services in the areas of disaster management, construction, and environmental investigation. It's products which include Remote Monitoring for underground deformation, Sensor for Deformation Measurement and Standalone with data logger for automatic monitoring of water level with multi-parameters.
82GF Score

Get the complete analysis for TSE:9755

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

円2,778.00
Price
円3,087.05
GF Value