Formosa Optical Technology Co (ROCO:5312) Shareholder Yield % : -5.01% (As of Dec. 2025)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
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:5312 Formosa Optical Technology Co Ltd ROCO:5312
81 GF Score
Price NT$90.00
GF Value NT$108.92
Valuation Modestly Undervalued
! 4 Warning Signs
View Full Analysis

What is Formosa Optical Technology Co Shareholder Yield %?

Formosa Optical Technology Co ROCO:5312 +0.22% 81 Shareholder Yield % is -5.01% as of Dec. 2025. GuruFocus rates ROCO:5312 with a GF Score™ of 81/100 and a GF Value™ of NT$108.92 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 817 Medical Devices & Instruments companies, Formosa Optical Technology Co ranks worse than 73.44% on this metric.

Shareholder Yield % is how much money shareholders receive from a company that is in the form of cash dividends, net stock repurchases, and debt reduction. It is a measure of shareholder return. As of today, Formosa Optical Technology Co's Shareholder Yield % was -5.01%.


Formosa Optical Technology Co  (ROCO:5312) Shareholder Yield % Explanation

Shareholder Yield % is how much money shareholders receive from a company that is in the form of cash dividends, net stock repurchases, and debt reduction. The term was coined by William W. Priest of Epoch Investment Partners in a paper in 2005 entitled The Case for Shareholder Yield as a Dominant Driver of Future Equity Returns. William Priest indicated that "shareholder yield is a term that we came up with to reflect the various ways dividends can be paid to owners of a business in a publicly-traded company."

Shareholder Yield % is calculated by three components: Dividend Yield %, Buyback Yield %, and Net Debt Paydown Yield %.

Dividend Yield % shows how much a company pays out in dividends each year relative to its stock price, which is most obvious form of shareholder return.

Buyback Yield % is the net repurchase of shares outstanding over the market capital of the company. Shares repurchases also increase shareholder value by returning the money back to shareholders.

Net Debt Paydown Yield % is the change in average of four quarters of company's total debt over a company's market cap. Assuming the total value of a company remains that same, shareholder value is increased as debt is reduced.


Formosa Optical Technology Co Shareholder Yield % Related Terms


Formosa Optical Technology Co Shareholder Yield % Historical Data

* Premium members only.

The historical data trend for Formosa Optical Technology Co's Shareholder Yield % 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 Shareholder Yield % Chart

Formosa Optical Technology Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shareholder Yield %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.80 -0.14 -1.16 -0.83 -3.41

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
Shareholder Yield % 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 -0.83 -0.69 0.20 -1.28 -3.41

ROCO:5312 vs ISRG, BDX, MDLN: Shareholder Yield % Comparison

For the Medical Instruments & Supplies subindustry, Formosa Optical Technology Co's Shareholder Yield %, along with its competitors' market caps and Shareholder Yield % 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 Shareholder Yield % vs Medical Devices & Instruments Industry

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

* The bar in red indicates where Formosa Optical Technology Co's Shareholder Yield % falls into.


ROCO:5312
81GF Score
Formosa Optical Technology Co Ltd ROCO:5312
Shareholder Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Formosa Optical Technology Co Shareholder Yield % Calculation

Formosa Optical Technology Co's Shareholder Yield % for the quarter that ended in Dec. 2025 is calculated as:

Shareholder Yield %=Dividend Yield %+Buyback Yield %+Net Debt Paydown Yield %
=7.43 %+0.00 %+-10.84 %
=-3.41 %

* 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.

* All the data are calculated by TTM values. Note that if a companies is traded in several exchanges, then we calculate the company level data for Shareholder Yield % using the primary share class stock data. The calculation result in definition page is for demonstration purpose only, and it's showing the share class level data. Therefore, the numbers in the calculation may differ from elsewhere if the stock is not a primary share.

Frequently Asked Questions Learn more about Shareholder Yield % →
What does a Shareholder Yield % of -5.01% mean?
Formosa Optical Technology Co (ROCO:5312) has a Shareholder Yield % of -5.01% as of Dec. 2025. Shareholder Yield is how much money shareholders receive from a company that is in the form of cash dividends, net stock repurchases, and debt reduction. View historical data on Formosa Optical Technology Co and its competitors. According to the industry distribution chart, Formosa Optical Technology Co ranks #600 out of 817 companies in the Medical Devices & Instruments industry, placing it in the top 73.4%.
Is Formosa Optical Technology Co's Shareholder Yield % too high?
Formosa Optical Technology Co's current Shareholder Yield % is -5.01%. Based on the distribution chart, Formosa Optical Technology Co ranks #600 out of 817 companies in the Medical Devices & Instruments industry, which is below the industry midpoint. Overall, Formosa Optical Technology Co has a GF Score™ of 81/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Formosa Optical Technology Co's Shareholder Yield % compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, Formosa Optical Technology Co ranks #600 out of 817 companies for Shareholder Yield %. This places Formosa Optical Technology Co in the lower half of its industry. The industry median Shareholder Yield % is 0.14. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shareholder Yield % for a Medical Devices & Instruments company?
The median Shareholder Yield % among Medical Devices & Instruments companies is 0.14, based on 817 companies in the industry. Companies in the top quartile (top 25%) have a Shareholder Yield % significantly above this median, while those in the bottom quartile fall well below. However, Shareholder Yield % 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 Shareholder Yield % mean?
A high Shareholder Yield % can signal that a stock is expensive relative to its fundamentals. Shareholder Yield is how much money shareholders receive from a company that is in the form of cash dividends, net stock repurchases, and debt reduction. View historical data on Formosa Optical Technology Co and its competitors. For the Medical Devices & Instruments industry, the median Shareholder Yield % is 0.14 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Formosa Optical Technology Co's current Shareholder Yield % is -5.01%. 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$108.92, compared to a current price of NT$90.00 — trading 17.4% below its estimated fair value. The current Shareholder Yield % is -5.01%. Formosa Optical Technology Co's overall GF Score™ is 81/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shareholder Yield % calculated?
Shareholder Yield % is calculated from a company's financial statements. For Formosa Optical Technology Co (ROCO:5312), the current Shareholder Yield % is -5.01% 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$90.00 is trading 17.4% below its estimated GF Value™ of NT$108.92. GuruFocus considers Formosa Optical Technology Co to be Modestly Undervalued.

Key valuation signals for ROCO:5312:

  • Shareholder Yield %: -5.01%
  • GF Value™: NT$108.92 vs. price of NT$90.00 (17.4% below fair value)
  • GF Score™: 81/100 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.
81GF Score

Get the complete analysis for ROCO:5312

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

NT$90.00
Price
NT$108.92
GF Value