Formosa Optical Technology CoROCO:5312 82 ROA % is 2.83% as of Dec. 2025, which is 53% below its 10-year median of 6.03. GuruFocus rates ROCO:5312 with a GF Score™ of 82/100 and a GF Value™ of NT$108.58 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 857 Medical Devices & Instruments companies, Formosa Optical Technology Co ranks better than 68.26% on this metric.
ROA % is calculated as Net Income divided by its average Total Assets over a certain period of time. Formosa Optical Technology Co's annualizedNet Income for the quarter that ended in Dec. 2025 was NT$254 Mil.
Formosa Optical Technology Co's average Total Assets over the quarter that ended in Dec. 2025 was NT$8,979 Mil. Therefore, Formosa Optical Technology Co's annualized ROA % for the quarter that ended in Dec. 2025 was 2.83%.
The historical rank and industry rank for Formosa Optical Technology Co's ROA % or its related term are showing as below:
ROCO:5312'
s ROA % Range Over the Past 10 Years
Min: 2.82 Med: 6.03 Max: 8.56
Current: 4.53
During the past 13 years, Formosa Optical Technology Co's highest ROA % was 8.56%. The lowest was 2.82%. And the median was 6.03%.
ROCO:5312's ROA % is ranked better than 68.26% of 857
companies
in the Medical Devices & Instruments industry
Industry Median: 0.54
vs ROCO:5312: 4.53
Formosa Optical Technology Co (ROCO:5312) ROA % Explanation
ROA % measures the rate of return on the total assets (shareholder equity plus liabilities). It measures a firm's efficiency at generating profits from shareholders' equity plus its liabilities. ROA % shows how well a company uses what it has to generate earnings. ROA %s can vary drastically across industries. Therefore, ROA % should not be used to compare companies in different industries. For retailers, a ROA % of higher than 5% is expected. For example, Wal-Mart (WMT) has a ROA % of about 8% as of 2012. For banks, ROA % is close to their interest spread. A banks ROA % is typically well under 2%.
Similar to ROE, ROA % is affected by profit margins and asset turnover. This can be seen from the Du Pont Formula:
Note:
The Net Income data used here is four times the quarterly (Dec. 2025) net income data. The Revenue data used here is four times the quarterly (Dec. 2025) revenue data.
* 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.
Be Aware
Like ROE, ROA % is calculated with only 12 months data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective. ROA % can be affected by events such as stock buyback or issuance, and by goodwill, a company's tax rate and its interest payment. ROA % may not reflect the true earning power of the assets. A more accurate measurement is ROC % (ROC).
Many analysts argue the higher return the better. Buffett states that really high ROA % may indicate vulnerability in the durability of the competitive advantage.
E.g. Raising $43b to take on KO is impossible, but $1.7b to take on Moody's is. Although Moody's ROA % and underlying economics is far superior to Coca Cola, the durability is far weaker because of lower entry cost.
Formosa Optical Technology Co ROA % Related Terms
Formosa Optical Technology Co ROA % Historical Data
* 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.
For the Medical Instruments & Supplies subindustry, Formosa Optical Technology Co's ROA %, along with its competitors' market caps and ROA % 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 ROA % vs Medical Devices & Instruments Industry
For the Medical Devices & Instruments industry and Healthcare sector, Formosa Optical Technology Co's ROA % distribution charts can be found below:
* The bar in red indicates where Formosa Optical Technology Co's ROA % falls into.
* 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.
In the calculation of annual ROA %, the net income of the last fiscal year and the average total assets over the fiscal year are used. In calculating the quarterly data,
the Net Income data used here is four times the quarterly (Dec. 2025) net income data.
ROA % is displayed in the 30-year financial page.
Formosa Optical Technology Co (ROCO:5312) has a ROA % of 2.83% as of Dec. 2025. Return on assets is the ratio of current-period net income to average two-period total assets. View historical data on Formosa Optical Technology Co and its competitors. This is 53% below median its historical median of 6.03. Over the past decade, Formosa Optical Technology Co's ROA % has ranged from 2.82 to 8.56. According to the industry distribution chart, Formosa Optical Technology Co ranks #272 out of 857 companies in the Medical Devices & Instruments industry, placing it in the top 31.7%.
Is Formosa Optical Technology Co's ROA % too high?
Formosa Optical Technology Co's current ROA % of 2.83% is 53% below median its 10-year median of 6.03. Over the past 10 years, this metric has ranged from a low of 2.82 to a high of 8.56. The Medical Devices & Instruments industry median ROA % is 0.54. Formosa Optical Technology Co's value of 2.83% is 424.1% above this industry median. Based on the distribution chart, Formosa Optical Technology Co ranks #272 out of 857 companies in the Medical Devices & Instruments industry, which is above the industry midpoint. Overall, Formosa Optical Technology Co has a GF Score™ of 82/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Formosa Optical Technology Co's ROA % compare to ISRG and BDX?
According to the Medical Devices & Instruments industry distribution chart, Formosa Optical Technology Co ranks #272 out of 857 companies for ROA %. This puts Formosa Optical Technology Co in the upper half of its industry. The industry median ROA % is 0.54. Formosa Optical Technology Co's value of 2.83% is 424.1% above this benchmark. Historically, Formosa Optical Technology Co's own ROA % has ranged from 2.82 to 8.56 over the past decade. While the company's 10-year median is 6.03 vs. the industry median of 0.54, Formosa Optical Technology Co has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROA % for a Medical Devices & Instruments company?
The median ROA % among Medical Devices & Instruments companies is 0.54, based on 857 companies in the industry. Companies in the top quartile (top 25%) have a ROA % significantly above this median, while those in the bottom quartile fall well below. However, ROA % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Formosa Optical Technology Co's current ROA % of 2.83% is 424.1% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high ROA % mean?
A high ROA % can signal that a stock is expensive relative to its fundamentals. Return on assets is the ratio of current-period net income to average two-period total assets. View historical data on Formosa Optical Technology Co and its competitors. For the Medical Devices & Instruments industry, the median ROA % is 0.54 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Formosa Optical Technology Co's current ROA % is 2.83%, which is 53% below median its own 10-year median of 6.03. 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$108.58, compared to a current price of NT$88.10 — trading 18.9% below its estimated fair value. The current ROA % is 2.83%, which is 53% below median its 10-year median of 6.03 and 424.1% above the Medical Devices & Instruments industry median of 0.54. Formosa Optical Technology Co's overall GF Score™ is 82/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROA % calculated?
ROA % is calculated from a company's financial statements. For Formosa Optical Technology Co (ROCO:5312), the current ROA % is 2.83% 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$88.10 is trading 18.9% below its estimated GF Value™ of NT$108.58.
GuruFocus considers Formosa Optical Technology Co to be Modestly Undervalued.
Key valuation signals for ROCO:5312:
ROA %: 2.83% (53% below median its 10-year median of 6.03)
GF Value™: NT$108.58 vs. price of NT$88.10 (18.9% below fair value)
Industry Position: 424.1% above the Medical Devices & Instruments median (#272 of 857)
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
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.
82GF Score
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