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Ta-Yuan Cogeneration CoROCO:8931 -0.24%76 ROC (Joel Greenblatt) % is 6.51% as of Mar. 2026, which is 32% below its 10-year median of 9.57. GuruFocus rates ROCO:8931 with a GF Score™ of 76/100 and a GF Value™ of NT$47.08 (Modestly Undervalued). The stock has 8 warning signs investors should review. Among 505 Utilities - Regulated companies, Ta-Yuan Cogeneration Co ranks worse than 76.44% 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. Ta-Yuan Cogeneration Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 6.51%.
The historical rank and industry rank for Ta-Yuan Cogeneration Co's ROC (Joel Greenblatt) % or its related term are showing as below:
ROCO:8931'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 5.75 Med: 9.57 Max: 13.47
Current: 5.75
During the past 13 years, Ta-Yuan Cogeneration Co's highest ROC (Joel Greenblatt) % was 13.47%. The lowest was 5.75%. And the median was 9.57%.
ROCO:8931's ROC (Joel Greenblatt) % is ranked worse than 76.44% of 505
companies
in the Utilities - Regulated industry
Industry Median: 10.84
vs ROCO:8931: 5.75
Ta-Yuan Cogeneration Co's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was -0.80% per year.
Ta-Yuan Cogeneration Co (ROCO:8931) 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.
Ta-Yuan Cogeneration Co ROC (Joel Greenblatt) % Related Terms
Ta-Yuan Cogeneration Co ROC (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Ta-Yuan Cogeneration 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.
Ta-Yuan Cogeneration Co ROC (Joel Greenblatt) % Chart
ROCO:8931 vs NEE, SO, DUK: ROC (Joel Greenblatt) % Comparison
For the Utilities - Regulated Electric subindustry, Ta-Yuan Cogeneration 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.
Ta-Yuan Cogeneration Co ROC (Joel Greenblatt) % vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Ta-Yuan Cogeneration Co's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Ta-Yuan Cogeneration Co's ROC (Joel Greenblatt) % falls into.
Ta-Yuan Cogeneration 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:
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.
Note:
The EBIT data used here is four times the quarterly (Mar. 2026) 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 6.51% mean?
Ta-Yuan Cogeneration Co (ROCO:8931) has a ROC (Joel Greenblatt) % of 6.51% as of Mar. 2026. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Ta-Yuan Cogeneration Co and its competitors. This is 32% below median its historical median of 9.57. Over the past decade, Ta-Yuan Cogeneration Co's ROC (Joel Greenblatt) % has ranged from 5.75 to 13.47. According to the industry distribution chart, Ta-Yuan Cogeneration Co ranks #386 out of 505 companies in the Utilities - Regulated industry, placing it in the top 76.4%.
Is Ta-Yuan Cogeneration Co's ROC (Joel Greenblatt) % too high?
Ta-Yuan Cogeneration Co's current ROC (Joel Greenblatt) % of 6.51% is 32% below median its 10-year median of 9.57. Over the past 10 years, this metric has ranged from a low of 5.75 to a high of 13.47. The Utilities - Regulated industry median ROC (Joel Greenblatt) % is 10.84. Ta-Yuan Cogeneration Co's value of 6.51% is 39.9% below this industry median. Based on the distribution chart, Ta-Yuan Cogeneration Co ranks #386 out of 505 companies in the Utilities - Regulated industry, which is in the bottom quartile relative to peers. Overall, Ta-Yuan Cogeneration Co has a GF Score™ of 76/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Ta-Yuan Cogeneration Co's ROC (Joel Greenblatt) % compare to NEE and SO?
According to the Utilities - Regulated industry distribution chart, Ta-Yuan Cogeneration Co ranks #386 out of 505 companies for ROC (Joel Greenblatt) %. This places Ta-Yuan Cogeneration Co in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 10.84. Ta-Yuan Cogeneration Co's value of 6.51% is 39.9% below this benchmark. Historically, Ta-Yuan Cogeneration Co's own ROC (Joel Greenblatt) % has ranged from 5.75 to 13.47 over the past decade. While the company's 10-year median is 9.57 vs. the industry median of 10.84, Ta-Yuan Cogeneration 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 ROC (Joel Greenblatt) % for an Utilities - Regulated company?
The median ROC (Joel Greenblatt) % among Utilities - Regulated companies is 10.84, based on 505 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. Ta-Yuan Cogeneration Co's current ROC (Joel Greenblatt) % of 6.51% is 39.9% 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 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 Ta-Yuan Cogeneration Co and its competitors. For the Utilities - Regulated industry, the median ROC (Joel Greenblatt) % is 10.84 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ta-Yuan Cogeneration Co's current ROC (Joel Greenblatt) % is 6.51%, which is 32% below median its own 10-year median of 9.57. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ta-Yuan Cogeneration Co stock overvalued right now?
Based on GuruFocus' analysis, Ta-Yuan Cogeneration Co (ROCO:8931) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$47.08, compared to a current price of NT$40.80 — trading 13.3% below its estimated fair value. The current ROC (Joel Greenblatt) % is 6.51%, which is 32% below median its 10-year median of 9.57 and 39.9% below the Utilities - Regulated industry median of 10.84. Ta-Yuan Cogeneration Co's overall GF Score™ is 76/100 with 8 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 Ta-Yuan Cogeneration Co (ROCO:8931), the current ROC (Joel Greenblatt) % is 6.51% 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 Ta-Yuan Cogeneration Co (ROCO:8931) Overvalued in 2026?
Based on GuruFocus' analysis, Ta-Yuan Cogeneration Co stock appears to be undervalued.
The current stock price of NT$40.80 is trading 13.3% below its estimated GF Value™ of NT$47.08.
GuruFocus considers Ta-Yuan Cogeneration Co to be Modestly Undervalued.
Key valuation signals for ROCO:8931:
ROC (Joel Greenblatt) %: 6.51% (32% below median its 10-year median of 9.57)
GF Value™: NT$47.08 vs. price of NT$40.80 (13.3% below fair value)
Industry Position: 39.9% below the Utilities - Regulated median (#386 of 505)
No single metric tells the full story. See the ROCO:8931 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ta-Yuan Cogeneration Co Ltd engages mainly in operating the cogeneration business, operating and repairing equipment, processing waste disposal, managing incinerators, and processing refuse-derived fuel. It is involved in the operation, management, and maintenance of cogeneration plants, as well as waste disposal and incinerator management. Through the development of cogeneration, the company focuses on supplying power to industrial areas and balancing peak and off-peak electricity demand. The company's reportable segments are: Plant of Cogeneration, which generates the maximum revenue, and Plant of Renewable Energy. Geographically, it operates only in Taiwan.
76GF Score
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