Formosa Optical Technology Co (ROCO:5312) Market Cap: NT$5,399 Mil (As of Aug. 18, 2026)

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ROCO:5312 Formosa Optical Technology Co Ltd ROCO:5312
83 GF Score
Price NT$89.90
GF Value NT$111.47
Valuation Modestly Undervalued
! 3 Warning Signs
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What is Formosa Optical Technology Co Market Cap?

Formosa Optical Technology Co ROCO:5312 +0.67% 83 Market Cap is NT$5,399 Mil as of Aug. 18, 2026. GuruFocus rates ROCO:5312 with a GF Score™ of 83/100 and a GF Value™ of NT$111.47 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 859 Medical Devices & Instruments companies, Formosa Optical Technology Co ranks better than 53.55% on this metric.

Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Formosa Optical Technology Co's share price for the quarter that ended in Jun. 2026 was NT$88.1. Formosa Optical Technology Co's Shares Outstanding (EOP) for the quarter that ended in Jun. 2026 was 60 Mil. Therefore, Formosa Optical Technology Co's market cap for the quarter that ended in Jun. 2026 was NT$5,291 Mil.

Formosa Optical Technology Co's quarterly market cap declined from Dec. 2025 (NT$6,066 Mil) to Mar. 2026 (NT$5,766 Mil) and declined from Mar. 2026 (NT$5,766 Mil) to Jun. 2026 (NT$5,291 Mil).

Formosa Optical Technology Co's annual market cap increased from Dec. 2023 (NT$5,027 Mil) to Dec. 2024 (NT$6,547 Mil) but then declined from Dec. 2024 (NT$6,547 Mil) to Dec. 2025 (NT$6,066 Mil).

Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. Formosa Optical Technology Co's Enterprise Value for Today is NT$4,383 Mil.


Formosa Optical Technology Co  (ROCO:5312) Market Cap Explanation

Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the company’s debt. The real price you pay is the Enterprise Value.

Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.


Formosa Optical Technology Co Market Cap Related Terms


Formosa Optical Technology Co Market Cap Historical Data

* Premium members only.

The historical data trend for Formosa Optical Technology Co's Market Cap 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 Market Cap Chart

Formosa Optical Technology Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Market Cap
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3,579.58 3,483.48 5,027.02 6,546.54 6,066.06

Formosa Optical Technology Co Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Market Cap 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 8,618.61 6,156.15 6,066.06 5,765.76 5,291.29

ROCO:5312 vs ISRG, BDX, MDLN: Market Cap Comparison

For the Medical Instruments & Supplies subindustry, Formosa Optical Technology Co's Market Cap, along with its competitors' market caps and Market Cap 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.


Formosa Optical Technology Co Market Cap vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Formosa Optical Technology Co's Market Cap distribution charts can be found below:

* The bar in red indicates where Formosa Optical Technology Co's Market Cap falls into.


ROCO:5312
83GF Score
Formosa Optical Technology Co Ltd ROCO:5312
Market Cap is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Formosa Optical Technology Co Market Cap Calculation

Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.

Formosa Optical Technology Co's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as

Market Cap (A: Dec. 2025 )=Share Price (A: Dec. 2025 )*Shares Outstanding (EOP) (A: Dec. 2025 )
=NT$101*60.060
=NT$6,066

Formosa Optical Technology Co's Market Cap for the quarter that ended in Jun. 2026 is calculated as

Market Cap (Q: Jun. 2026 )=Share Price (Q: Jun. 2026 )*Shares Outstanding (EOP) (Q: Jun. 2026 )
=NT$88.1*60.060
=NT$5,291

* 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.

Frequently Asked Questions Learn more about Market Cap →
What does a Market Cap of NT$5,399 Mil mean?
Formosa Optical Technology Co (ROCO:5312) has a Market Cap of NT$5,399 Mil as of Aug. 18, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Formosa Optical Technology Co and its competitors. According to the industry distribution chart, Formosa Optical Technology Co ranks #399 out of 859 companies in the Medical Devices & Instruments industry, placing it in the top 46.4%.
Is Formosa Optical Technology Co's Market Cap too high?
Formosa Optical Technology Co's current Market Cap is NT$5,399 Mil. Based on the distribution chart, Formosa Optical Technology Co ranks #399 out of 859 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. Overall, Formosa Optical Technology Co has a GF Score™ of 83/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Formosa Optical Technology Co's Market Cap compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, Formosa Optical Technology Co ranks #399 out of 859 companies for Market Cap. This puts Formosa Optical Technology Co in the upper half of its industry. The industry median Market Cap is 120.67. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for a Medical Devices & Instruments company?
The median Market Cap among Medical Devices & Instruments companies is 120.67, based on 859 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap 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 Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Formosa Optical Technology Co and its competitors. For the Medical Devices & Instruments industry, the median Market Cap is 120.67 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Formosa Optical Technology Co's current Market Cap is NT$5,399 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$111.47, compared to a current price of NT$89.90 — trading 19.4% below its estimated fair value. The current Market Cap is NT$5,399 Mil. Formosa Optical Technology Co's overall GF Score™ is 83/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For Formosa Optical Technology Co (ROCO:5312), the current Market Cap is NT$5,399 Mil as of Aug. 18, 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 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$89.90 is trading 19.4% below its estimated GF Value™ of NT$111.47. GuruFocus considers Formosa Optical Technology Co to be Modestly Undervalued.

Key valuation signals for ROCO:5312:

  • Market Cap: NT$5,399 Mil
  • GF Value™: NT$111.47 vs. price of NT$89.90 (19.4% below fair value)
  • GF Score™: 83/100 with 3 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.
83GF Score

Get the complete analysis for ROCO:5312

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

NT$89.90
Price
NT$111.47
GF Value