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Sun Brothers Development CoROCO:3489 -2.93%52 Net Margin % is 1.42% as of Dec. 2025, which is 29% below its 10-year median of 2.00. GuruFocus rates ROCO:3489 with a GF Score™ of 52/100 and a GF Value™ of NT$9.15 (Significantly Overvalued). The stock has 9 warning signs investors should review. Among 1,757 Real Estate companies, Sun Brothers Development Co ranks worse than 70.97% on this metric.
The historical rank and industry rank for Sun Brothers Development Co's Net Margin % or its related term are showing as below:
ROCO:3489'
s Net Margin % Range Over the Past 10 Years
Min: -3.36 Med: 2 Max: 10.73
Current: -1.18
ROCO:3489's Net Margin % is ranked worse than 70.97% of 1757
companies
in the Real Estate industry
Industry Median: 8.22
vs ROCO:3489: -1.18
Sun Brothers Development Co (ROCO:3489) Net Margin % Explanation
Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.
But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.
Sun Brothers Development Co Net Margin % Related Terms
Sun Brothers Development Co Net Margin % 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.
Sun Brothers Development Co Net Margin % Competitor Comparison
For the Real Estate - Development subindustry, Sun Brothers Development Co's Net Margin %, along with its competitors' market caps and Net Margin % 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.
Sun Brothers Development Co Net Margin % vs Real Estate Industry
For the Real Estate industry and Real Estate sector, Sun Brothers Development Co's Net Margin % distribution charts can be found below:
* The bar in red indicates where Sun Brothers Development Co's Net Margin % 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.
Sun Brothers Development Co (ROCO:3489) has a Net Margin % of 1.42% as of Dec. 2025. Net margin is the ratio of total net income to net sales. View historical data on Sun Brothers Development Co and its competitors. This is 29% below median its historical median of 2.00. According to the industry distribution chart, Sun Brothers Development Co ranks #1247 out of 1757 companies in the Real Estate industry, placing it in the top 71%.
Is Sun Brothers Development Co's Net Margin % too high?
Sun Brothers Development Co's current Net Margin % of 1.42% is 29% below median its 10-year median of 2.00. The Real Estate industry median Net Margin % is 8.22. Sun Brothers Development Co's value of 1.42% is 82.7% below this industry median. Based on the distribution chart, Sun Brothers Development Co ranks #1247 out of 1757 companies in the Real Estate industry, which is below the industry midpoint. Overall, Sun Brothers Development Co has a GF Score™ of 52/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sun Brothers Development Co's Net Margin % compare to competitors?
According to the Real Estate industry distribution chart, Sun Brothers Development Co ranks #1247 out of 1757 companies for Net Margin %. This places Sun Brothers Development Co in the lower half of its industry. The industry median Net Margin % is 8.22. Sun Brothers Development Co's value of 1.42% is 82.7% below this benchmark. While the company's 10-year median is 2.00 vs. the industry median of 8.22, Sun Brothers Development Co has consistently been below 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 Net Margin % for a Real Estate company?
The median Net Margin % among Real Estate companies is 8.22, based on 1,757 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Sun Brothers Development Co's current Net Margin % of 1.42% is 82.7% below 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 Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Sun Brothers Development Co and its competitors. For the Real Estate industry, the median Net Margin % is 8.22 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sun Brothers Development Co's current Net Margin % is 1.42%, which is 29% below median its own 10-year median of 2.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sun Brothers Development Co stock overvalued right now?
Based on GuruFocus' analysis, Sun Brothers Development Co (ROCO:3489) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$9.15, compared to a current price of NT$19.85 — trading 116.9% above its estimated fair value. The current Net Margin % is 1.42%, which is 29% below median its 10-year median of 2.00 and 82.7% below the Real Estate industry median of 8.22. Sun Brothers Development Co's overall GF Score™ is 52/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Sun Brothers Development Co (ROCO:3489), the current Net Margin % is 1.42% 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 Sun Brothers Development Co (ROCO:3489) Overvalued in 2026?
Based on GuruFocus' analysis, Sun Brothers Development Co stock appears to be overvalued.
The current stock price of NT$19.85 is trading 116.9% above its estimated GF Value™ of NT$9.15.
GuruFocus considers Sun Brothers Development Co to be Significantly Overvalued.
Key valuation signals for ROCO:3489:
Net Margin %: 1.42% (29% below median its 10-year median of 2.00)
GF Value™: NT$9.15 vs. price of NT$19.85 (116.9% above fair value)
Industry Position: 82.7% below the Real Estate median (#1247 of 1757)
No single metric tells the full story. See the ROCO:3489 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sun Brothers Development Co Ltd is engaged in wholesale of building materials, developing, constructing, leasing and selling for residential, commercial or industrial buildings and others. It is also involved in the development and construction of collective housing and public works contract construction. The company's segments are: Real property section, and Construction section. It derives revenue from Construction segment.
52GF Score
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Net Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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