United Fiber Optic Communication (ROCO:4903) E10: NT$-0.74 (As of Dec. 2025)


ROCO:4903 United Fiber Optic Communication Inc ROCO:4903
55 GF Score
Price NT$40.05
GF Value NT$39.59
Valuation Fairly Valued
! 2 Warning Signs
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What is United Fiber Optic Communication E10?

United Fiber Optic Communication ROCO:4903 +0.38% 55 E10 is NT$-0.74 as of Dec. 2025. GuruFocus rates ROCO:4903 with a GF Score™ of 55/100 and a GF Value™ of NT$39.59 (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.

United Fiber Optic Communication's adjusted earnings per share data for the three months ended in Dec. 2025 was NT$0.200. Add all the adjusted EPS for the past 10 years together and divide 10 will get our e10, which is NT$-0.74 for the trailing ten years ended in Dec. 2025.

During the past 3 years, the average E10 Growth Rate was -1.40% per year. During the past 5 years, the average E10 Growth Rate was -22.60% 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 United Fiber Optic Communication was -1.40% per year. The lowest was -37.50% per year. And the median was -21.90% per year.

As of today (2026-07-03), United Fiber Optic Communication's current stock price is NT$40.05. United Fiber Optic Communication's E10 for the quarter that ended in Dec. 2025 was NT$-0.74. United Fiber Optic Communication's Shiller PE Ratio of today is .

During the past 13 years, the highest Shiller PE Ratio of United Fiber Optic Communication was 515.54. The lowest was 184.75. And the median was 377.58.


United Fiber Optic Communication  (ROCO:4903) 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 United Fiber Optic Communication was 515.54. The lowest was 184.75. And the median was 377.58.


Be Aware

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


United Fiber Optic Communication E10 Related Terms


United Fiber Optic Communication E10 Historical Data

* Premium members only.

The historical data trend for United Fiber Optic Communication'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.

United Fiber Optic Communication E10 Chart

United Fiber Optic Communication 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 -0.42 -0.71 -0.65 -0.76 -0.74

United Fiber Optic Communication Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 -0.76 -0.80 -0.76 -0.75 -0.74

ROCO:4903 vs CSCO, CIEN, MSI: E10 Comparison

For the Communication Equipment subindustry, United Fiber Optic Communication'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.


United Fiber Optic Communication Shiller PE Ratio vs Hardware Industry

For the Hardware industry and Technology sector, United Fiber Optic Communication's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where United Fiber Optic Communication's Shiller PE Ratio falls into.


ROCO:4903
55GF Score
United Fiber Optic Communication Inc ROCO:4903
E10 is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

United Fiber Optic Communication 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, United Fiber Optic Communication'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)
=0.2/324.0540*324.0540
=0.200

Current CPI (Dec. 2025) = 324.0540.

United Fiber Optic Communication Quarterly Data

per share eps CPI Adj_EPS
201603 -0.116 238.132 -0.158
201606 -0.232 241.018 -0.312
201609 -0.218 241.428 -0.293
201612 0.131 241.432 0.176
201703 -0.349 243.801 -0.464
201706 -0.145 244.955 -0.192
201709 -0.189 246.819 -0.248
201712 0.261 246.524 0.343
201803 0.029 249.554 0.038
201806 -0.203 251.989 -0.261
201809 -0.276 252.439 -0.354
201812 -0.903 251.233 -1.165
201903 -0.087 254.202 -0.111
201906 0.131 256.143 0.166
201909 -0.290 256.759 -0.366
201912 -0.363 256.974 -0.458
202003 -0.073 258.115 -0.092
202006 -1.075 257.797 -1.351
202009 -1.118 260.280 -1.392
202012 -0.378 260.474 -0.470
202103 -0.073 264.877 -0.089
202106 -0.058 271.696 -0.069
202109 0.174 274.310 0.206
202112 -0.539 278.802 -0.626
202203 -0.230 287.504 -0.259
202206 -0.910 296.311 -0.995
202209 -0.010 296.808 -0.011
202212 0.010 296.797 0.011
202303 -0.170 301.836 -0.183
202306 -0.190 305.109 -0.202
202309 -0.070 307.789 -0.074
202312 0.700 306.746 0.739
202403 -0.240 312.332 -0.249
202406 0.750 314.175 0.774
202409 -0.210 315.301 -0.216
202412 -0.230 315.605 -0.236
202503 -0.180 319.799 -0.182
202506 0.180 322.561 0.181
202509 0.820 324.800 0.818
202512 0.200 324.054 0.200

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 NT$-0.74 mean?
United Fiber Optic Communication (ROCO:4903) has a E10 of NT$-0.74 as of Dec. 2025. E10 represents the company's inflation-adjusted earnings per share over a 10-year period. View historical data on United Fiber Optic Communication and its competitors.
Is United Fiber Optic Communication's E10 too high?
United Fiber Optic Communication's current E10 is NT$-0.74. Overall, United Fiber Optic Communication has a GF Score™ of 55/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does United Fiber Optic Communication's E10 compare to CSCO and CIEN?
United Fiber Optic Communication's E10 of NT$-0.74 can be compared against companies in the Hardware 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 Hardware company?
A good E10 depends on the Hardware 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 United Fiber Optic Communication and its competitors. United Fiber Optic Communication's current E10 is NT$-0.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is United Fiber Optic Communication stock overvalued right now?
Based on GuruFocus' analysis, United Fiber Optic Communication (ROCO:4903) is currently considered Fairly Valued. The stock's GF Value™ is NT$39.59, compared to a current price of NT$40.05 — trading 1.2% above its estimated fair value. The current E10 is NT$-0.74. United Fiber Optic Communication's overall GF Score™ is 55/100 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 United Fiber Optic Communication (ROCO:4903), the current E10 is NT$-0.74 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 United Fiber Optic Communication (ROCO:4903) Overvalued in 2026?

Based on GuruFocus' analysis, United Fiber Optic Communication stock appears to be overvalued. The current stock price of NT$40.05 is trading 1.2% above its estimated GF Value™ of NT$39.59. GuruFocus considers United Fiber Optic Communication to be Fairly Valued.

Key valuation signals for ROCO:4903:

  • E10: NT$-0.74
  • GF Value™: NT$39.59 vs. price of NT$40.05 (1.2% above fair value)
  • GF Score™: 55/100 with 2 warning signs

No single metric tells the full story. See the ROCO:4903 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


United Fiber Optic Communication Business Description

Address No. 12, Creation Road IV, Science-Based Industrial Park, Hsinchu, TWN
United Fiber Optic Communication Inc manufactures and distributes optical fiber cables and transmission equipment. The company mainly engages in exporting and importing products as well as providing services regarding fiber optic cables, related materials and accessories, transmission equipment, dense wavelength division multiplex (DWDM), repeaters, panels and boxes, and preforms, related communications equipment and network workstation systems, FDDI network equipment, optical Cable TV transmitters and receivers, FM PSK multi-band video transmission series, broadband data transmission, and network management systems.
55GF Score

Get the complete analysis for ROCO:4903

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

NT$40.05
Price
NT$39.59
GF Value