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LandMark OptoelectronicsROCO:3081 +9.76%66 ROE % is 30.13% as of Mar. 2026, which is 175% above its 10-year median of 10.94. GuruFocus rates ROCO:3081 with a GF Score™ of 66/100 and a GF Value™ of NT$754.75 (Significantly Overvalued). The stock has 3 warning signs investors should review. Among 1,002 Semiconductors companies, LandMark Optoelectronics ranks better than 81.94% on this metric.
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 (Mar. 2026) net income data. The Revenue data used here is four times the quarterly (Mar. 2026) 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.
* 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 Semiconductor Equipment & Materials subindustry, LandMark Optoelectronics'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.
LandMark Optoelectronics ROE % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, LandMark Optoelectronics's ROE % distribution charts can be found below:
* The bar in red indicates where LandMark Optoelectronics'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 (Mar. 2026) net income data.
ROE % is displayed in the 30-year financial page.
LandMark Optoelectronics (ROCO:3081) has a ROE % of 30.13% as of Mar. 2026. Return on equity is the ratio of current-period net income to average two-period total equity. View historical data on LandMark Optoelectronics and its competitors. This is 175% above median its historical median of 10.94. According to the industry distribution chart, LandMark Optoelectronics ranks #181 out of 1002 companies in the Semiconductors industry, placing it in the top 18.1%.
Is LandMark Optoelectronics' ROE % too high?
LandMark Optoelectronics' current ROE % of 30.13% is 175% above median its 10-year median of 10.94. The Semiconductors industry median ROE % is 4.83. LandMark Optoelectronics' value of 30.13% is 523.8% above this industry median. Based on the distribution chart, LandMark Optoelectronics ranks #181 out of 1002 companies in the Semiconductors industry, which is in the top quartile — a strong position relative to peers. Overall, LandMark Optoelectronics has a GF Score™ of 66/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does LandMark Optoelectronics' ROE % compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, LandMark Optoelectronics ranks #181 out of 1002 companies for ROE %. This places LandMark Optoelectronics in the top 18% of its industry — outperforming the majority of peers. The industry median ROE % is 4.83. LandMark Optoelectronics' value of 30.13% is 523.8% above this benchmark. While the company's 10-year median is 10.94 vs. the industry median of 4.83, LandMark Optoelectronics 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 ROE % for a Semiconductors company?
The median ROE % among Semiconductors companies is 4.83, 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. LandMark Optoelectronics's current ROE % of 30.13% is 523.8% 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 LandMark Optoelectronics and its competitors. For the Semiconductors industry, the median ROE % is 4.83 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. LandMark Optoelectronics's current ROE % is 30.13%, which is 175% above median its own 10-year median of 10.94. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is LandMark Optoelectronics stock overvalued right now?
Based on GuruFocus' analysis, LandMark Optoelectronics (ROCO:3081) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$754.75, compared to a current price of NT$1,630.00 — trading 116% above its estimated fair value. The current ROE % is 30.13%, which is 175% above median its 10-year median of 10.94 and 523.8% above the Semiconductors industry median of 4.83. LandMark Optoelectronics' overall GF Score™ is 66/100 with 3 warning signs 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 LandMark Optoelectronics (ROCO:3081), the current ROE % is 30.13% as of Mar. 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 LandMark Optoelectronics (ROCO:3081) Overvalued in 2026?
Based on GuruFocus' analysis, LandMark Optoelectronics stock appears to be overvalued.
The current stock price of NT$1,630.00 is trading 116% above its estimated GF Value™ of NT$754.75.
GuruFocus considers LandMark Optoelectronics to be Significantly Overvalued.
Key valuation signals for ROCO:3081:
ROE %: 30.13% (175% above median its 10-year median of 10.94)
GF Value™: NT$754.75 vs. price of NT$1,630.00 (116% above fair value)
Industry Position: 523.8% above the Semiconductors median (#181 of 1002)
No single metric tells the full story. See the ROCO:3081 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
LandMark Optoelectronics Corp is active in the semiconductor industry as an epi-wafer supplier. It is engaged in the manufacturing, processing, and selling of optical semiconductors, laser diodes, and high brightness InAlGaP/AlGalnAs. The company operates in a single reportable segment, which is single product manufacturing and selling of wafers. Some of its products are DFB Epiwafer, EML Epiwafer, APD Epiwafer, FP Epiwafer, and PIN PD Epiwafer. Its geographical segments are United States, Mainland China, Taiwan, and others.
66GF Score
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