Formosa Optical Technology Co (ROCO:5312) Common Stock: NT$601 Mil (As of Dec. 2025)

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ROCO:5312 Formosa Optical Technology Co Ltd ROCO:5312
84 GF Score
Price NT$91.40
GF Value NT$109.14
Valuation Modestly Undervalued
! 4 Warning Signs
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What is Formosa Optical Technology Co Common Stock?

Formosa Optical Technology Co ROCO:5312 -9.05% 84 Common Stock is NT$601 Mil as of Dec. 2025. GuruFocus rates ROCO:5312 with a GF Score™ of 84/100 and a GF Value™ of NT$109.14 (Modestly Undervalued). The stock has 4 warning signs investors should review.

Formosa Optical Technology Co's quarterly common stock stayed the same from Jun. 2025 (NT$601 Mil) to Sep. 2025 (NT$601 Mil) and stayed the same from Sep. 2025 (NT$601 Mil) to Dec. 2025 (NT$601 Mil).

Formosa Optical Technology Co's annual common stock stayed the same from Dec. 2023 (NT$601 Mil) to Dec. 2024 (NT$601 Mil) and stayed the same from Dec. 2024 (NT$601 Mil) to Dec. 2025 (NT$601 Mil).

Formosa Optical Technology Co Common Stock Historical Data

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The historical data trend for Formosa Optical Technology Co's Common Stock 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.

Formosa Optical Technology Co Common Stock Chart

Formosa Optical Technology Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Common Stock
Get a 7-Day Free Trial Premium Member Only Premium Member Only 600.60 600.60 600.60 600.60 600.60

Formosa Optical Technology Co Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
Common Stock 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 600.60 600.60 600.60 600.60 600.60
ROCO:5312
84GF Score
Formosa Optical Technology Co Ltd ROCO:5312
Common Stock is just one metric. See GF Score™, valuation, warning signs, and more.
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Formosa Optical Technology Co Common Stock Calculation

Common stock is listed on the Balance Sheet at the par value of the total shares outstanding of a company.

The par value of common stocks is meaningless. It is usually set at an absurdly low number.

Frequently Asked Questions Learn more about Common Stock →
What does a Common Stock of NT$601 Mil mean?
Formosa Optical Technology Co (ROCO:5312) has a Common Stock of NT$601 Mil as of Dec. 2025. Common Stock is the par value of a company's shares outstanding, as listed on the balance sheet. View historical data on Formosa Optical Technology Co and its competitors.
Is Formosa Optical Technology Co's Common Stock too high?
Formosa Optical Technology Co's current Common Stock is NT$601 Mil. Overall, Formosa Optical Technology Co has a GF Score™ of 84/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Formosa Optical Technology Co's Common Stock compare to ISRG and BDX?
Formosa Optical Technology Co's Common Stock of NT$601 Mil can be compared against companies in the Medical Devices & Instruments industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Common Stock for a Medical Devices & Instruments company?
A good Common Stock depends on the Medical Devices & Instruments industry context. However, Common Stock 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 Common Stock mean?
A high Common Stock can signal that a stock is expensive relative to its fundamentals. Common Stock is the par value of a company's shares outstanding, as listed on the balance sheet. View historical data on Formosa Optical Technology Co and its competitors. Formosa Optical Technology Co's current Common Stock is NT$601 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Formosa Optical Technology Co stock overvalued right now?
Based on GuruFocus' analysis, Formosa Optical Technology Co (ROCO:5312) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$109.14, compared to a current price of NT$91.40 — trading 16.3% below its estimated fair value. The current Common Stock is NT$601 Mil. Formosa Optical Technology Co's overall GF Score™ is 84/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Common Stock calculated?
Common Stock is calculated from a company's financial statements. For Formosa Optical Technology Co (ROCO:5312), the current Common Stock is NT$601 Mil 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 Formosa Optical Technology Co (ROCO:5312) Overvalued in 2026?

Based on GuruFocus' analysis, Formosa Optical Technology Co stock appears to be undervalued. The current stock price of NT$91.40 is trading 16.3% below its estimated GF Value™ of NT$109.14. GuruFocus considers Formosa Optical Technology Co to be Modestly Undervalued.

Key valuation signals for ROCO:5312:

  • Common Stock: NT$601 Mil
  • GF Value™: NT$109.14 vs. price of NT$91.40 (16.3% below fair value)
  • GF Score™: 84/100 with 4 warning signs

No single metric tells the full story. See the ROCO:5312 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Formosa Optical Technology Co Business Description

Address No. 97, Xintai 5th Road, 16th Floor, Section 1, Xizhi District, New Taipei City, TWN
Formosa Optical Technology Co Ltd is mainly engaged in the eyewear business, including optometry services and the retail business selling contact lenses and eye drops. The Group mainly derives revenue from the business divisions of Formosa Optical Technology and Bo Wei Optical, with Formosa Optical Technology generating maximum revenue. The majority of revenue is derived from the sale of glasses. The Group generates the majority of its revenue from Taiwan.
84GF Score

Get the complete analysis for ROCO:5312

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

NT$91.40
Price
NT$109.14
GF Value