Grand Green EnergyROCO:6639 50 Gross Margin % is -11.67% as of Dec. 2025. GuruFocus rates ROCO:6639 with a GF Score™ of 50/100 and a GF Value™ of NT$4.36 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 2,992 Industrial Products companies, Grand Green Energy ranks worse than 97.56% on this metric.
The historical rank and industry rank for Grand Green Energy's Gross Margin % or its related term are showing as below:
ROCO:6639'
s Gross Margin % Range Over the Past 10 Years
Min: -18.12 Med: 6.63 Max: 29.34
Current: -1.8
During the past 11 years, the highestGross Margin % of Grand Green Energy was 29.34%. The lowest was -18.12%. And the median was 6.63%.
ROCO:6639's Gross Margin % is ranked worse than 97.56% of 2992
companies
in the Industrial Products industry
Industry Median: 26.82
vs ROCO:6639: -1.80
Grand Green Energy had a gross margin of -11.67% for the quarter that ended in Dec. 2025 => No sustainable competitive advantage
The 5-Year average Growth Rate of Gross Margin for Grand Green Energy was 0.00% per year.
Grand Green Energy (ROCO:6639) Gross Margin % Explanation
Warren Buffett believes that firms with excellent long term economics tend to have consistently higher margins.
Durable competitive advantage creates a high Gross Margin % because of the freedom to price in excess of cost. Companies can be categorized by their Gross Margin %
1. Greater than 40% = Durable competitive advantage
2. Less than 40% = Competition eroding margins
3. Less than 20% = no sustainable competitive advantage
Consistency of Gross Margin is key
Grand Green Energy had a gross margin of -11.67% for the quarter that ended in Dec. 2025 => No sustainable competitive advantage
Be Aware
If a company loses its competitive advantages, usually its gross margin declines well before its sales declines. Watching Gross Margin % and Operating Margin % closely helps avoid value trap situations.
Grand Green Energy Gross Margin % Related Terms
Grand Green Energy Gross Margin % Historical Data
* Premium members only.
The historical data trend for Grand Green Energy's Gross Margin % 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.
ROCO:6639 vs GEV, ETN, PH: Gross Margin % Comparison
For the Specialty Industrial Machinery subindustry, Grand Green Energy's Gross Margin %, along with its competitors' market caps and Gross 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.
Grand Green Energy Gross Margin % vs Industrial Products Industry
For the Industrial Products industry and Industrials sector, Grand Green Energy's Gross Margin % distribution charts can be found below:
* The bar in red indicates where Grand Green Energy's Gross 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.
A positive Gross Profit is only the first step for a company to make a net profit. The gross profit needs to be big enough to also cover related labor, equipment, rental, marketing/advertising, research and development and a lot of other costs in selling the products.
Grand Green Energy (ROCO:6639) has a Gross Margin % of -11.67% as of Dec. 2025. Gross margin is the ratio of total gross profit to net sales. View historical data on Grand Green Energy and its competitors. According to the industry distribution chart, Grand Green Energy ranks #2919 out of 2992 companies in the Industrial Products industry, placing it in the top 97.6%.
Is Grand Green Energy's Gross Margin % too high?
Grand Green Energy's current Gross Margin % is -11.67%. Based on the distribution chart, Grand Green Energy ranks #2919 out of 2992 companies in the Industrial Products industry, which is in the bottom quartile relative to peers. Overall, Grand Green Energy has a GF Score™ of 50/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Grand Green Energy's Gross Margin % compare to GEV and ETN?
According to the Industrial Products industry distribution chart, Grand Green Energy ranks #2919 out of 2992 companies for Gross Margin %. This places Grand Green Energy in the lower half of its industry. The industry median Gross Margin % is 26.82. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Gross Margin % for an Industrial Products company?
The median Gross Margin % among Industrial Products companies is 26.82, based on 2,992 companies in the industry. Companies in the top quartile (top 25%) have a Gross Margin % significantly above this median, while those in the bottom quartile fall well below. However, Gross Margin % 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 Gross Margin % mean?
A high Gross Margin % can signal that a stock is expensive relative to its fundamentals. Gross margin is the ratio of total gross profit to net sales. View historical data on Grand Green Energy and its competitors. For the Industrial Products industry, the median Gross Margin % is 26.82 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Grand Green Energy's current Gross Margin % is -11.67%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Grand Green Energy stock overvalued right now?
Based on GuruFocus' analysis, Grand Green Energy (ROCO:6639) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$4.36, compared to a current price of NT$5.99 — trading 37.4% above its estimated fair value. The current Gross Margin % is -11.67%. Grand Green Energy's overall GF Score™ is 50/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Gross Margin % calculated?
Gross Margin % is calculated from a company's financial statements. For Grand Green Energy (ROCO:6639), the current Gross Margin % is -11.67% 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 Grand Green Energy (ROCO:6639) Overvalued in 2026?
Based on GuruFocus' analysis, Grand Green Energy stock appears to be overvalued.
The current stock price of NT$5.99 is trading 37.4% above its estimated GF Value™ of NT$4.36.
GuruFocus considers Grand Green Energy to be Significantly Overvalued.
Key valuation signals for ROCO:6639:
Gross Margin %: -11.67%
GF Value™: NT$4.36 vs. price of NT$5.99 (37.4% above fair value)
No single metric tells the full story. See the ROCO:6639 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Grand Green Energy Corp is mainly engaged in the development and sale of thermal energy supply system and other thermal equipment. The company caters to textile, food, chemical, and paper industry. It also offers air pollution emission equipment.
50GF Score
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