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ROE % is calculated as Net Income divided by its average Total Stockholders Equity over a certain period of time. LuxNet's annualized net income for the quarter that ended in Dec. 2025 was NT$954 Mil. LuxNet's average Total Stockholders Equity over the quarter that ended in Dec. 2025 was NT$3,833 Mil. Therefore, LuxNet's annualized ROE % for the quarter that ended in Dec. 2025 was 24.89%.
The historical rank and industry rank for LuxNet's ROE % or its related term are showing as below:
ROCO:4979'
s ROE % Range Over the Past 10 Years
Min: -52.98 Med: -6.46 Max: 21.37
Current: 21.37
During the past 13 years, LuxNet's highest ROE % was 21.37%. The lowest was -52.98%. And the median was -6.46%.
ROCO:4979's ROE % is ranked better than 87.82% of 1002
companies
in the Semiconductors industry
Industry Median: 4.655
vs ROCO:4979: 21.37
LuxNet (ROCO:4979) ROE % Explanation
ROE % measures the rate of return on the ownership interest (shareholder's equity) of the common stock owners. It measures a firm's efficiency at generating profits from every unit of shareholders' equity (also known as net assets or assets minus liabilities). ROE % shows how well a company uses investment funds to generate earnings growth. ROE %s between 15% and 20% are considered desirable.
The factors that affect a company's ROE % can be illustrated with the three-step DuPont Analysis:
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. The same rule applies to Pre-Tax Income and Operating Income.
* In the five-step DuPont Analysis, Operating Income is only available for non-financial companies. Thus, for Insurance companies, we use EBIT as a substitution of Operating Income. For Banks, both Operating Income and EBIT is unavailable. Thus we combined Interest Burden and Operating Margin % into Pretax Margin %, and the DuPont Analysis is divided into four components instead.
* 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
Net Income is used.
Because a company can increase its ROE % by having more financial leverage, it is important to watch the equity multiplier when investing in high ROE % companies. Like ROA %, ROE % is calculated with only 12 months data. Fluctuations in company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Asset light businesses require very few assets to generate very high earnings. Their ROE %s can be extremely high.
LuxNet ROE % Related Terms
LuxNet ROE % Historical Data
* Premium members only.
The historical data trend for LuxNet's ROE % 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.
For the Semiconductors subindustry, LuxNet's ROE %, along with its competitors' market caps and ROE % 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.
LuxNet ROE % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, LuxNet's ROE % distribution charts can be found below:
* The bar in red indicates where LuxNet's ROE % 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 ROE %, the net income of the last fiscal year and the average total shareholder equity 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.
ROE % is displayed in the 30-year financial page.
LuxNet (ROCO:4979) has a ROE % of 24.89% as of Dec. 2025. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on LuxNet and its competitors. According to the industry distribution chart, LuxNet ranks #122 out of 1002 companies in the Semiconductors industry, placing it in the top 12.2%.
Is LuxNet's ROE % too high?
LuxNet's current ROE % is 24.89%. The Semiconductors industry median ROE % is 4.66. LuxNet's value of 24.89% is 434.7% above this industry median. Based on the distribution chart, LuxNet ranks #122 out of 1002 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, LuxNet has a GF Score™ of 61/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does LuxNet's ROE % compare to NVDA and AVGO?
According to the Semiconductors industry distribution chart, LuxNet ranks #122 out of 1002 companies for ROE %. This places LuxNet in the top 12% of its industry — outperforming the majority of peers. The industry median ROE % is 4.66. LuxNet's value of 24.89% is 434.7% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROE % for a Semiconductors company?
The median ROE % among Semiconductors companies is 4.66, based on 1,002 companies in the industry. Companies in the top quartile (top 25%) have a ROE % significantly above this median, while those in the bottom quartile fall well below. However, ROE % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. LuxNet's current ROE % of 24.89% is 434.7% 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 ROE % mean?
A high ROE % can signal that a stock is expensive relative to its fundamentals. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on LuxNet and its competitors. For the Semiconductors industry, the median ROE % is 4.66 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. LuxNet's current ROE % is 24.89%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is LuxNet stock overvalued right now?
Based on GuruFocus' analysis, LuxNet (ROCO:4979) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$261.95, compared to a current price of NT$410.00 — trading 56.5% above its estimated fair value. The current ROE % is 24.89% and 434.7% above the Semiconductors industry median of 4.66. LuxNet's overall GF Score™ is 61/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROE % calculated?
ROE % is calculated from a company's financial statements. For LuxNet (ROCO:4979), the current ROE % is 24.89% 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 LuxNet (ROCO:4979) Overvalued in 2026?
Based on GuruFocus' analysis, LuxNet stock appears to be overvalued.
The current stock price of NT$410.00 is trading 56.5% above its estimated GF Value™ of NT$261.95.
GuruFocus considers LuxNet to be Significantly Overvalued.
Key valuation signals for ROCO:4979:
ROE %: 24.89%
GF Value™: NT$261.95 vs. price of NT$410.00 (56.5% above fair value)
Industry Position: 434.7% above the Semiconductors median (#122 of 1002)
No single metric tells the full story. See the ROCO:4979 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
LuxNet Corp is engaged in the manufacturing, processing and sale of electronic components and active components for optical communication and the retail sale of electronic materials. Its products include CHIP, TO-CAN and OPTICAL SUB-ASSEMBLY, and its main product is active components for optical communication and modules. It also provides OEM services including Contract Manufacturing Service, Module Manufacturing Service and Optical Engine Manufacturing Service. The Group's revenues are mainly from active components for optical communication and are recognized when control of the goods is transferred to the customer. It operates in Taiwan, China, North America and other regions, with North America generating maximum revenue.
61GF Score
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