Foci Fiber Optic Communications (ROCO:3363) Peter Lynch Fair Value: N/A (As of Aug. 08, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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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
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.

ROCO:3363 Foci Fiber Optic Communications Inc ROCO:3363
74 GF Score
Price NT$582.00
GF Value NT$268.43
Valuation Significantly Overvalued
! 2 Warning Signs
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What is Foci Fiber Optic Communications Peter Lynch Fair Value?

Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year. Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years. If 5-Year Growth Rate is greater than 25% a year, we use 25. If 5-Year Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.


The historical rank and industry rank for Foci Fiber Optic Communications's Peter Lynch Fair Value or its related term are showing as below:


During the past 13 years, the highest Price to Peter Lynch Fair Value Ratio of Foci Fiber Optic Communications was 12.10. The lowest was 0.49. And the median was 2.26.


ROCO:3363's Price-to-Peter-Lynch-Fair-Value is not ranked *
in the Hardware industry.
Industry Median: 1.68
* Ranked among companies with meaningful Price-to-Peter-Lynch-Fair-Value only.

Note: Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart.


Foci Fiber Optic Communications  (ROCO:3363) Peter Lynch Fair Value Explanation

Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year.

Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years.

Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart. In Peter Lynch chart, a fixed P/E ratio of 15 is used to draw the Earnings Line. Therefore the value reached has a P/E ratio of 15. But in Peter Lynch Fair Value calculation, P/E equals to the growth rate of EBITDA per share over the past 5 years, which is 0 instead of 15 in this case.

Foci Fiber Optic Communications's Price to Peter Lynch Fair Value Ratio for today is calculated as

Price to Peter Lynch Fair Value=Share Price/Peter Lynch Fair Value
=582.00/N/A
=N/A

* 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.


Foci Fiber Optic Communications Peter Lynch Fair Value Related Terms


Foci Fiber Optic Communications Peter Lynch Fair Value Historical Data

* Premium members only.

The historical data trend for Foci Fiber Optic Communications's Peter Lynch Fair Value 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.

Foci Fiber Optic Communications Peter Lynch Fair Value Chart

Foci Fiber Optic Communications Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Peter Lynch Fair Value
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 4.22 0.00 0.00 0.00

Foci Fiber Optic Communications Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Peter Lynch Fair Value 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 0.00 0.00 0.00 0.00 0.00

ROCO:3363 vs CSCO, MSI, HPE: Peter Lynch Fair Value Comparison

For the Communication Equipment subindustry, Foci Fiber Optic Communications's Price-to-Peter-Lynch-Fair-Value, along with its competitors' market caps and Price-to-Peter-Lynch-Fair-Value 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.


Foci Fiber Optic Communications Price-to-Peter-Lynch-Fair-Value vs Hardware Industry

For the Hardware industry and Technology sector, Foci Fiber Optic Communications's Price-to-Peter-Lynch-Fair-Value distribution charts can be found below:

* The bar in red indicates where Foci Fiber Optic Communications's Price-to-Peter-Lynch-Fair-Value falls into.


ROCO:3363
74GF Score
Foci Fiber Optic Communications Inc ROCO:3363
Peter Lynch Fair Value is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Foci Fiber Optic Communications Peter Lynch Fair Value Calculation

Foci Fiber Optic Communications's Peter Lynch Fair Value for today is calculated as

Peter Lynch Fair Value=PEG Ratio*5-Year TTM EBITDA Growth Rate***EPS without NRI (TTM)
=1* N/A *-0.832
=N/A

Foci Fiber Optic Communications's EPS without NRI for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was NT$-0.83.


* 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.

** Please be aware that the 5-Year TTM EBITDA Growth Rate is calculated based on TTM data over the last 5 years. For quarterly reported companies, the TTM data adds up the quarterly data reported by the company within the most recent 12 months. For companies that report semi-annually, annually, or do not have enough quarterly data, GuruFocus uses the annual data as the TTM data.

If 5-Year Earnings Growth Rate is greater than 25% a year, we use 25.

If 5-Year Earnings Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.

Please note that we use the 5-year average growth rate of EBITDA per share as the growth rate for non-bank companies, as EBITDA growth is subject to less manipulations than net earnings per share. For banks, we use the 5-year average growth rate of Book Value per share as the growth rate. The reason is that EBITDA is not applicable to Banks and Book value is a relative important measurement for Banks. In the calculation, PEG=1 because Peter Lynch thinks that the fair P/E ratio of the growth stock is equal to its earnings growth rate.

Is Foci Fiber Optic Communications (ROCO:3363) Overvalued in 2026?

Based on GuruFocus' analysis, Foci Fiber Optic Communications stock appears to be overvalued. The current stock price of NT$582.00 is trading 116.8% above its estimated GF Value™ of NT$268.43. GuruFocus considers Foci Fiber Optic Communications to be Significantly Overvalued.

Key valuation signals for ROCO:3363:

  • Peter Lynch Fair Value: N/A
  • GF Value™: NT$268.43 vs. price of NT$582.00 (116.8% above fair value)
  • GF Score™: 74/100 with 2 warning signs

No single metric tells the full story. See the ROCO:3363 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Foci Fiber Optic Communications Business Description

Address No. 18, Prosperity 2nd Road, Science Industrial Park, Hsinchu, TWN, 300
Foci Fiber Optic Communications Inc is engaged in the research, manufacture and sales of various passive fiber optical components, fiber optic test equipment, fiber optics application system and plan, design, consulting and technology services of system integration of the aforementioned products. Its products include interconnector series, isolators, couplers, splitters, attenuators, WDM devices, and filter devices, among others. Geographically, it generates the majority of its revenue from America.
74GF Score

Get the complete analysis for ROCO:3363

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

NT$582.00
Price
NT$268.43
GF Value