Greenrock Energy Co (ROCO:7833) ROC (Joel Greenblatt) %: -2.90% (As of Dec. 2025)

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ROCO:7833 Greenrock Energy Co Ltd ROCO:7833
5 GF Score
Price NT$26.50
! 6 Warning Signs
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What is Greenrock Energy Co ROC (Joel Greenblatt) %?

Greenrock Energy Co ROCO:7833 +1.34% 5 ROC (Joel Greenblatt) % is -2.90% as of Dec. 2025. GuruFocus rates ROCO:7833 with a GF Score™ of 5/100. The stock has 6 warning signs investors should review. Among 441 Utilities - Independent Power Producers companies, Greenrock Energy Co ranks worse than 72.79% on this metric.

Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits). He defines ROC (Joel Greenblatt) % as EBIT divided by the total of Property, Plant and Equipment and net working capital. Greenrock Energy Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was -2.90%.

The historical rank and industry rank for Greenrock Energy Co's ROC (Joel Greenblatt) % or its related term are showing as below:

ROCO:7833' s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 1.21   Med: 5.49   Max: 8.24
Current: 1.21

During the past 3 years, Greenrock Energy Co's highest ROC (Joel Greenblatt) % was 8.24%. The lowest was 1.21%. And the median was 5.49%.

ROCO:7833's ROC (Joel Greenblatt) % is ranked worse than
72.79% of 441 companies
in the Utilities - Independent Power Producers industry
Industry Median: 6.34 vs ROCO:7833: 1.21

Greenrock Energy Co's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.


Greenrock Energy Co  (ROCO:7833) ROC (Joel Greenblatt) % Explanation

The way Joel Greenblatt defines Return on Capital is a more accurate measure of how efficiently the company generates returns onthe capital actually invested in the business. EBIT is used instead of net income because the tax and interest payment may be affected by factors other than the core business operation. Intangible assets are not included in the calculation because they don't need to be replaced.

Joel Greenblatt uses his definition of Return on Capital and Earnings Yield (Joel Greenblatt) % to rank companies.


Greenrock Energy Co ROC (Joel Greenblatt) % Related Terms


Greenrock Energy Co ROC (Joel Greenblatt) % Historical Data

* Premium members only.

The historical data trend for Greenrock Energy Co's ROC (Joel Greenblatt) % 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.

Greenrock Energy Co ROC (Joel Greenblatt) % Chart

Greenrock Energy Co Annual Data
Trend Dec23 Dec24 Dec25
ROC (Joel Greenblatt) %
8.24 5.49 1.22

Greenrock Energy Co Semi-Annual Data
Dec23 Jun24 Dec24 Jun25 Dec25
ROC (Joel Greenblatt) % 0.00 -3.59 11.17 5.76 -2.90

Greenrock Energy Co ROC (Joel Greenblatt) % Competitor Comparison

For the Utilities - Renewable subindustry, Greenrock Energy Co's ROC (Joel Greenblatt) %, along with its competitors' market caps and ROC (Joel Greenblatt) % 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.


Greenrock Energy Co ROC (Joel Greenblatt) % vs Utilities - Independent Power Producers Industry

For the Utilities - Independent Power Producers industry and Utilities sector, Greenrock Energy Co's ROC (Joel Greenblatt) % distribution charts can be found below:

* The bar in red indicates where Greenrock Energy Co's ROC (Joel Greenblatt) % falls into.


ROCO:7833
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Greenrock Energy Co Ltd ROCO:7833
ROC (Joel Greenblatt) % is just one metric. See GF Score™, valuation, warning signs, and more.
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Greenrock Energy Co ROC (Joel Greenblatt) % Calculation

Joel Greenblatt defined Return on Capital differently in his book The Little Book That Still Beats the Market (Little Books. Big Profits) . He defines Return on Capital as follows:

ROC (Joel Greenblatt) %=EBIT/Average of (Net fixed Assets + Net Working Capital)

EBIT stands for Earnings Before Interest and Taxes.

Fixed Assets are also known as non-current assets. They include the Property, Plant and Equipment that the firm needs in its operation.

GuruFocus calculates net working capital as: (Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Deferred Revenue + Other Current Liabilities). We're trying to account for OPERATING assets and liabilities (part of daily business) when calculating working capital. Cash and marketable securities are considered NON-OPERATING assets and are not included in calculation. We will also back out all interest bearing debt, short term debt and the portion of long term debt that is due in the current period from the current liabilities. This debt will be considered when computing cost of capital and it would be inappropriate to count it twice.

Working Capital(Q: Jun. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(117.049 + 0 + 245.147) - (1027.596 + 0 + 23.276)
=-688.676

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(133.079 + 10.923 + 250.105) - (982.901 + 0 + 18.463)
=-607.257

When net working capital is negative, 0 is used.

So ROC (Joel Greenblatt) % of Greenrock Energy Co for the quarter that ended in Dec. 2025 can be restated as:

ROC (Joel Greenblatt) %(Q: Dec. 2025 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Jun. 2025  Q: Dec. 2025
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=-86.454/( ( (2887.875 + max(-688.676, 0)) + (3076.554 + max(-607.257, 0)) )/ 2 )
=-86.454/( ( 2887.875 + 3076.554 )/ 2 )
=-86.454/2982.2145
=-2.90 %

Note: The EBIT data used here is two times the semi-annual (Dec. 2025) EBIT 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.

What does a ROC (Joel Greenblatt) % of -2.90% mean?
Greenrock Energy Co (ROCO:7833) has a ROC (Joel Greenblatt) % of -2.90% as of Dec. 2025. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Greenrock Energy Co and its competitors. Over the past decade, Greenrock Energy Co's ROC (Joel Greenblatt) % has ranged from 1.21 to 8.24. According to the industry distribution chart, Greenrock Energy Co ranks #321 out of 441 companies in the Utilities - Independent Power Producers industry, placing it in the top 72.8%.
Is Greenrock Energy Co's ROC (Joel Greenblatt) % too high?
Greenrock Energy Co's current ROC (Joel Greenblatt) % is -2.90%. Over the past 10 years, this metric has ranged from a low of 1.21 to a high of 8.24. Based on the distribution chart, Greenrock Energy Co ranks #321 out of 441 companies in the Utilities - Independent Power Producers industry, which is below the industry midpoint. Overall, Greenrock Energy Co has a GF Score™ of 5/100, reflecting its overall financial health beyond just this single metric.
How does Greenrock Energy Co's ROC (Joel Greenblatt) % compare to competitors?
According to the Utilities - Independent Power Producers industry distribution chart, Greenrock Energy Co ranks #321 out of 441 companies for ROC (Joel Greenblatt) %. This places Greenrock Energy Co in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 6.34. Historically, Greenrock Energy Co's own ROC (Joel Greenblatt) % has ranged from 1.21 to 8.24 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC (Joel Greenblatt) % for an Utilities - Independent Power Producers company?
The median ROC (Joel Greenblatt) % among Utilities - Independent Power Producers companies is 6.34, based on 441 companies in the industry. Companies in the top quartile (top 25%) have a ROC (Joel Greenblatt) % significantly above this median, while those in the bottom quartile fall well below. However, ROC (Joel Greenblatt) % 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 (Joel Greenblatt) % mean?
A high ROC (Joel Greenblatt) % can signal that a stock is expensive relative to its fundamentals. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Greenrock Energy Co and its competitors. For the Utilities - Independent Power Producers industry, the median ROC (Joel Greenblatt) % is 6.34 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Greenrock Energy Co's current ROC (Joel Greenblatt) % is -2.90%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Greenrock Energy Co stock overvalued right now?
Greenrock Energy Co (ROCO:7833) has a current ROC (Joel Greenblatt) % of -2.90%. The current ROC (Joel Greenblatt) % is -2.90%. Greenrock Energy Co's overall GF Score™ is 5/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Greenrock Energy Co (ROCO:7833), the current ROC (Joel Greenblatt) % is -2.90% 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.

Greenrock Energy Co Business Description

Address Ciyun Road, 13th Floor, 6-8, No.118, East District, Hsinchu, TWN
Greenrock Energy Co Ltd is engaged in the development of renewable and clean energy. The core business of the company includes energy generation (power plant development and investment), EPC services (engineering, procurement, and construction), and energy storage solutions. The company provides comprehensive renewable energy services, covering solar power plant development, EPC project execution, integrated system operations and maintenance, and green energy trading platform development.
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ROC (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

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