ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. Grand Green Energy's annualized return on capital (ROC %) for the quarter that ended in Dec. 2025 was -9.86%.
As of today (2026-07-07), Grand Green Energy's WACC % is 4.19%. Grand Green Energy's ROC % is -8.24% (calculated using TTM income statement data).
Grand Green Energy earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Grand Green Energy (ROCO:6639) ROC % Explanation
ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. The reason book values of debt and equity are used is because the book values are the capital the company received when issuing the debt or receiving the equity investments.
There are four key components to this definition. The first is the use of operating income or EBIT rather than net income in the numerator. The second is the tax adjustment to this operating income or EBIT, computed as a hypothetical tax based on an effective or marginal tax rate. The third is the use of book values for invested capital, rather than market values. The final is the timing difference; the capital invested is from the end of the prior year whereas the operating income or EBIT is the current year's number.
Why is ROC % important?
Because it costs money to raise capital. A firm that generates higher returns on investment than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.
As of today, Grand Green Energy's WACC % is 4.19%. Grand Green Energy's ROC % is -8.24% (calculated using TTM income statement data).
Grand Green Energy earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Be Aware
Like ROE % and ROA %, ROC % is calculated with only 12 months of 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.
Grand Green Energy ROC % Related Terms
Grand Green Energy ROC % Historical Data
* Premium members only.
The historical data trend for Grand Green Energy's ROC % 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.
Note:
The Operating Income data used here is two times the semi-annual (Dec. 2025) data.
The tax rate is limited to between 0% and 100%.
* 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.
Grand Green Energy (ROCO:6639) has a ROC % of -9.86% as of Dec. 2025. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Grand Green Energy and its competitors.
Is Grand Green Energy's ROC % too high?
Grand Green Energy's current ROC % is -9.86%. 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 ROC % compare to GEV and ETN?
Grand Green Energy's ROC % of -9.86% can be compared against companies in the Industrial Products industry. The industry median ROC % is 5.20. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC % for an Industrial Products company?
The median ROC % among Industrial Products companies is 5.20, based on 3,028 companies in the industry. Companies in the top quartile (top 25%) have a ROC % significantly above this median, while those in the bottom quartile fall well below. However, ROC % 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 ROC % mean?
A high ROC % can signal that a stock is expensive relative to its fundamentals. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Grand Green Energy and its competitors. For the Industrial Products industry, the median ROC % is 5.20 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Grand Green Energy's current ROC % is -9.86%. 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 ROC % is -9.86%. 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 ROC % calculated?
ROC % is calculated from a company's financial statements. For Grand Green Energy (ROCO:6639), the current ROC % is -9.86% 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:
ROC %: -9.86%
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
Get the complete analysis for ROCO:6639
ROC % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:6639 has been successfully added to your 
