Okinawa Cellular Telephone Co (STU:OCU) E10: €0.60 (As of Mar. 2026)

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STU:OCU Okinawa Cellular Telephone Co STU:OCU
75 GF Score
Price €20.20
GF Value €12.82
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Okinawa Cellular Telephone Co E10?

Okinawa Cellular Telephone Co STU:OCU -0.99% 75 E10 is €0.60 as of Mar. 2026. GuruFocus rates STU:OCU with a GF Score™ of 75/100 and a GF Value™ of €12.82 (Significantly 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.

Okinawa Cellular Telephone Co's adjusted earnings per share data for the three months ended in Mar. 2026 was €0.184. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is €0.60 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Okinawa Cellular Telephone Co's average E10 Growth Rate was 7.60% per year. During the past 3 years, the average E10 Growth Rate was 9.30% per year. During the past 5 years, the average E10 Growth Rate was 9.50% 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 Okinawa Cellular Telephone Co was 10.20% per year. The lowest was 5.40% per year. And the median was 8.40% per year.

As of today (2026-07-14), Okinawa Cellular Telephone Co's current stock price is €20.20. Okinawa Cellular Telephone Co's E10 for the quarter that ended in Mar. 2026 was €0.60. Okinawa Cellular Telephone Co's Shiller PE Ratio of today is 33.67.

During the past 13 years, the highest Shiller PE Ratio of Okinawa Cellular Telephone Co was 34.59. The lowest was 12.25. And the median was 17.27.


Okinawa Cellular Telephone Co  (STU:OCU) 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.

Okinawa Cellular Telephone Co's Shiller P/E Ratio of today is calculated as

Shiller PE Ratio=Share Price/E10
=20.20/0.60
=33.67

* 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 Okinawa Cellular Telephone Co was 34.59. The lowest was 12.25. And the median was 17.27.


Be Aware

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


Okinawa Cellular Telephone Co E10 Related Terms


Okinawa Cellular Telephone Co E10 Historical Data

* Premium members only.

The historical data trend for Okinawa Cellular Telephone 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.

Okinawa Cellular Telephone Co E10 Chart

Okinawa Cellular Telephone Co 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 0.56 0.58 0.56 0.63 0.60

Okinawa Cellular Telephone Co 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 0.63 0.61 0.60 0.58 0.60

STU:OCU vs TMUS, VZ, T: E10 Comparison

For the Telecom Services subindustry, Okinawa Cellular Telephone 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.


Okinawa Cellular Telephone Co Shiller PE Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, Okinawa Cellular Telephone Co's Shiller PE Ratio distribution charts can be found below:

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


STU:OCU
75GF Score
Okinawa Cellular Telephone Co STU:OCU
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Okinawa Cellular Telephone 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, Okinawa Cellular Telephone Co'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)
=0.184/112.7000*112.7000
=0.184

Current CPI (Mar. 2026) = 112.7000.

Okinawa Cellular Telephone Co Quarterly Data

per share eps CPI Adj_EPS
201606 0.189 98.100 0.217
201609 0.199 98.000 0.229
201612 0.150 98.400 0.172
201703 0.080 98.100 0.092
201706 0.155 98.500 0.177
201709 0.162 98.800 0.185
201712 0.161 99.400 0.183
201803 0.129 99.200 0.147
201806 0.177 99.200 0.201
201809 0.185 99.900 0.209
201812 0.154 99.700 0.174
201903 0.150 99.700 0.170
201906 0.187 99.800 0.211
201909 0.206 100.100 0.232
201912 0.206 100.500 0.231
202003 0.152 100.300 0.171
202006 0.196 99.900 0.221
202009 0.212 99.900 0.239
202012 0.250 99.300 0.284
202103 0.119 99.900 0.134
202106 0.219 99.500 0.248
202109 0.242 100.100 0.272
202112 0.215 100.100 0.242
202203 0.085 101.100 0.095
202206 0.203 101.800 0.225
202209 0.192 103.100 0.210
202212 0.188 104.100 0.204
202303 0.136 104.400 0.147
202306 0.209 105.200 0.224
202309 0.208 106.200 0.221
202312 0.198 106.800 0.209
202403 0.162 107.200 0.170
202406 0.182 108.200 0.190
202409 0.207 108.900 0.214
202412 0.220 110.700 0.224
202503 0.193 111.100 0.196
202506 0.209 111.700 0.211
202509 0.202 112.000 0.203
202512 0.210 113.000 0.209
202603 0.184 112.700 0.184

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 €0.60 mean?
Okinawa Cellular Telephone Co (STU:OCU) has a E10 of €0.60 as of Mar. 2026. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on Okinawa Cellular Telephone Co and its competitors.
Is Okinawa Cellular Telephone Co's E10 too high?
Okinawa Cellular Telephone Co's current E10 is €0.60. Overall, Okinawa Cellular Telephone Co has a GF Score™ of 75/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Okinawa Cellular Telephone Co's E10 compare to TMUS and VZ?
Okinawa Cellular Telephone Co's E10 of €0.60 can be compared against companies in the Telecommunication Services 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 Telecommunication Services company?
A good E10 depends on the Telecommunication Services 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 Okinawa Cellular Telephone Co and its competitors. Okinawa Cellular Telephone Co's current E10 is €0.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Okinawa Cellular Telephone Co stock overvalued right now?
Based on GuruFocus' analysis, Okinawa Cellular Telephone Co (STU:OCU) is currently considered Significantly Overvalued. The stock's GF Value™ is €12.82, compared to a current price of €20.20 — trading 57.6% above its estimated fair value. The current E10 is €0.60. Okinawa Cellular Telephone Co's overall GF Score™ is 75/100 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 Okinawa Cellular Telephone Co (STU:OCU), the current E10 is €0.60 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 Okinawa Cellular Telephone Co (STU:OCU) Overvalued in 2026?

Based on GuruFocus' analysis, Okinawa Cellular Telephone Co stock appears to be overvalued. The current stock price of €20.20 is trading 57.6% above its estimated GF Value™ of €12.82. GuruFocus considers Okinawa Cellular Telephone Co to be Significantly Overvalued.

Key valuation signals for STU:OCU:

  • E10: €0.60
  • GF Value™: €12.82 vs. price of €20.20 (57.6% above fair value)
  • GF Score™: 75/100 with 6 warning signs

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


Okinawa Cellular Telephone Co Business Description

Other Exchanges 9436:Japan
Address 1-2-1 Matsuyama, Okinawa, Naha City, JPN, 900-8540
Okinawa Cellular Telephone Co is a telecommunications company. It is engaged in telecommunications business that provides mobile services, domestic and international communication services, Internet services, etc.
75GF Score

Get the complete analysis for STU:OCU

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

€20.20
Price
€12.82
GF Value