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Ruentex Materials CoTPE:8463 +0.94%80 ROC (Joel Greenblatt) % is 9.32% as of Dec. 2025, which is 69% above its 10-year median of 5.53. GuruFocus rates TPE:8463 with a GF Score™ of 80/100 and a GF Value™ of NT$35.94 (Possible Value Trap). The stock has 5 warning signs investors should review. Among 409 Building Materials companies, Ruentex Materials Co ranks better than 68.7% 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. Ruentex Materials Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was 9.32%.
The historical rank and industry rank for Ruentex Materials Co's ROC (Joel Greenblatt) % or its related term are showing as below:
TPE:8463'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -2.42 Med: 5.53 Max: 15.57
Current: 15.57
During the past 13 years, Ruentex Materials Co's highest ROC (Joel Greenblatt) % was 15.57%. The lowest was -2.42%. And the median was 5.53%.
TPE:8463's ROC (Joel Greenblatt) % is ranked better than 68.7% of 409
companies
in the Building Materials industry
Industry Median: 8.57
vs TPE:8463: 15.57
Ruentex Materials Co's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.
Ruentex Materials Co (TPE:8463) 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.
Ruentex Materials Co ROC (Joel Greenblatt) % Related Terms
Ruentex Materials Co ROC (Joel Greenblatt) % Historical Data
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The historical data trend for Ruentex Materials 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.
Ruentex Materials Co ROC (Joel Greenblatt) % Chart
TPE:8463 vs CRH, VMC, MLM: ROC (Joel Greenblatt) % Comparison
For the Building Materials subindustry, Ruentex Materials 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.
Ruentex Materials Co ROC (Joel Greenblatt) % vs Building Materials Industry
For the Building Materials industry and Basic Materials sector, Ruentex Materials Co's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Ruentex Materials Co's ROC (Joel Greenblatt) % falls into.
Ruentex Materials 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 (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 9.32% mean?
Ruentex Materials Co (TPE:8463) has a ROC (Joel Greenblatt) % of 9.32% 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 Ruentex Materials Co and its competitors. This is 69% above median its historical median of 5.53. According to the industry distribution chart, Ruentex Materials Co ranks #128 out of 409 companies in the Building Materials industry, placing it in the top 31.3%.
Is Ruentex Materials Co's ROC (Joel Greenblatt) % too high?
Ruentex Materials Co's current ROC (Joel Greenblatt) % of 9.32% is 69% above median its 10-year median of 5.53. The Building Materials industry median ROC (Joel Greenblatt) % is 8.57. Ruentex Materials Co's value of 9.32% is 8.8% above this industry median. Based on the distribution chart, Ruentex Materials Co ranks #128 out of 409 companies in the Building Materials industry, which is above the industry midpoint. Overall, Ruentex Materials Co has a GF Score™ of 80/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Ruentex Materials Co's ROC (Joel Greenblatt) % compare to CRH and VMC?
According to the Building Materials industry distribution chart, Ruentex Materials Co ranks #128 out of 409 companies for ROC (Joel Greenblatt) %. This puts Ruentex Materials Co in the upper half of its industry. The industry median ROC (Joel Greenblatt) % is 8.57. Ruentex Materials Co's value of 9.32% is 8.8% above this benchmark. While the company's 10-year median is 5.53 vs. the industry median of 8.57, Ruentex Materials Co has consistently been above 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 a Building Materials company?
The median ROC (Joel Greenblatt) % among Building Materials companies is 8.57, based on 409 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. Ruentex Materials Co's current ROC (Joel Greenblatt) % of 9.32% is 8.8% above 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 Ruentex Materials Co and its competitors. For the Building Materials industry, the median ROC (Joel Greenblatt) % is 8.57 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Ruentex Materials Co's current ROC (Joel Greenblatt) % is 9.32%, which is 69% above median its own 10-year median of 5.53. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Ruentex Materials Co stock overvalued right now?
Based on GuruFocus' analysis, Ruentex Materials Co (TPE:8463) is currently considered Possible Value Trap. The stock's GF Value™ is NT$35.94, compared to a current price of NT$21.50 — trading 40.2% below its estimated fair value. The current ROC (Joel Greenblatt) % is 9.32%, which is 69% above median its 10-year median of 5.53 and 8.8% above the Building Materials industry median of 8.57. Ruentex Materials Co's overall GF Score™ is 80/100 with 5 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 Ruentex Materials Co (TPE:8463), the current ROC (Joel Greenblatt) % is 9.32% 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 Ruentex Materials Co (TPE:8463) Overvalued in 2026?
Based on GuruFocus' analysis, Ruentex Materials Co stock appears to be undervalued.
The current stock price of NT$21.50 is trading 40.2% below its estimated GF Value™ of NT$35.94.
GuruFocus considers Ruentex Materials Co to be Possible Value Trap.
Key valuation signals for TPE:8463:
ROC (Joel Greenblatt) %: 9.32% (69% above median its 10-year median of 5.53)
GF Value™: NT$35.94 vs. price of NT$21.50 (40.2% below fair value)
Industry Position: 8.8% above the Building Materials median (#128 of 409)
No single metric tells the full story. See the TPE:8463 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Ruentex Materials Co Ltd is engaged in the manufacturing and sale of semi-finished cement products. The company is also engaged in mining, manufacturing, and distribution of cement raw materials and mining and distribution of mineral ore, quarrying, building materials development, manufacture, and distribution, manufacture, and sale of clay used for wall primer, powder coating material, tile adhesive, self-leveling cement, and dry-mixed cement mortar applications The product portfolio of the company includes Portland blast furnace cement, Portland cement, Hearthstone powder. The company's revenue is mainly from three lines of business such as Cement business, Construction materials business, and Engineering and construction business.
80GF Score
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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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