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Chang Jia M&E EngineeringROCO:4550 +2.47%57 ROC (Joel Greenblatt) % is 31.87% as of Mar. 2026, which is 4% above its 10-year median of 30.69. GuruFocus rates ROCO:4550 with a GF Score™ of 57/100 and a GF Value™ of NT$18.81 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 1,780 Construction companies, Chang Jia M&E Engineering ranks better than 54.78% 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. Chang Jia M&E Engineering's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 31.87%.
The historical rank and industry rank for Chang Jia M&E Engineering's ROC (Joel Greenblatt) % or its related term are showing as below:
ROCO:4550'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 16.43 Med: 30.69 Max: 65.67
Current: 23.26
During the past 13 years, Chang Jia M&E Engineering's highest ROC (Joel Greenblatt) % was 65.67%. The lowest was 16.43%. And the median was 30.69%.
ROCO:4550's ROC (Joel Greenblatt) % is ranked better than 54.78% of 1780
companies
in the Construction industry
Industry Median: 19.77
vs ROCO:4550: 23.26
Chang Jia M&E Engineering's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 2.50% per year.
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.
Chang Jia M&E Engineering ROC (Joel Greenblatt) % Related Terms
Chang Jia M&E Engineering ROC (Joel Greenblatt) % Historical Data
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The historical data trend for Chang Jia M&E Engineering'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.
ROCO:4550 vs PWR, FIX, EME: ROC (Joel Greenblatt) % Comparison
For the Engineering & Construction subindustry, Chang Jia M&E Engineering'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.
Chang Jia M&E Engineering ROC (Joel Greenblatt) % vs Construction Industry
For the Construction industry and Industrials sector, Chang Jia M&E Engineering's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Chang Jia M&E Engineering's ROC (Joel Greenblatt) % falls into.
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 31.87% mean?
Chang Jia M&E Engineering (ROCO:4550) has a ROC (Joel Greenblatt) % of 31.87% 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 Chang Jia M&E Engineering and its competitors. This is near median its historical median of 30.69. Over the past decade, Chang Jia M&E Engineering's ROC (Joel Greenblatt) % has ranged from 16.43 to 65.67. According to the industry distribution chart, Chang Jia M&E Engineering ranks #805 out of 1780 companies in the Construction industry, placing it in the top 45.2%.
Is Chang Jia M&E Engineering's ROC (Joel Greenblatt) % too high?
Chang Jia M&E Engineering's current ROC (Joel Greenblatt) % of 31.87% is near median its 10-year median of 30.69. Over the past 10 years, this metric has ranged from a low of 16.43 to a high of 65.67. The Construction industry median ROC (Joel Greenblatt) % is 19.77. Chang Jia M&E Engineering's value of 31.87% is 61.2% above this industry median. Based on the distribution chart, Chang Jia M&E Engineering ranks #805 out of 1780 companies in the Construction industry, which is above the industry midpoint. Overall, Chang Jia M&E Engineering has a GF Score™ of 57/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Chang Jia M&E Engineering's ROC (Joel Greenblatt) % compare to PWR and FIX?
According to the Construction industry distribution chart, Chang Jia M&E Engineering ranks #805 out of 1780 companies for ROC (Joel Greenblatt) %. This puts Chang Jia M&E Engineering in the upper half of its industry. The industry median ROC (Joel Greenblatt) % is 19.77. Chang Jia M&E Engineering's value of 31.87% is 61.2% above this benchmark. Historically, Chang Jia M&E Engineering's own ROC (Joel Greenblatt) % has ranged from 16.43 to 65.67 over the past decade. While the company's 10-year median is 30.69 vs. the industry median of 19.77, Chang Jia M&E Engineering 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 Construction company?
The median ROC (Joel Greenblatt) % among Construction companies is 19.77, based on 1,780 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. Chang Jia M&E Engineering's current ROC (Joel Greenblatt) % of 31.87% is 61.2% 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 Chang Jia M&E Engineering and its competitors. For the Construction industry, the median ROC (Joel Greenblatt) % is 19.77 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Chang Jia M&E Engineering's current ROC (Joel Greenblatt) % is 31.87%, which is near median its own 10-year median of 30.69. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Chang Jia M&E Engineering stock overvalued right now?
Based on GuruFocus' analysis, Chang Jia M&E Engineering (ROCO:4550) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$18.81, compared to a current price of NT$24.90 — trading 32.4% above its estimated fair value. The current ROC (Joel Greenblatt) % is 31.87%, which is near median its 10-year median of 30.69 and 61.2% above the Construction industry median of 19.77. Chang Jia M&E Engineering's overall GF Score™ is 57/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC (Joel Greenblatt) % calculated?
ROC (Joel Greenblatt) % is calculated from a company's financial statements. For Chang Jia M&E Engineering (ROCO:4550), the current ROC (Joel Greenblatt) % is 31.87% 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 Chang Jia M&E Engineering (ROCO:4550) Overvalued in 2026?
Based on GuruFocus' analysis, Chang Jia M&E Engineering stock appears to be overvalued.
The current stock price of NT$24.90 is trading 32.4% above its estimated GF Value™ of NT$18.81.
GuruFocus considers Chang Jia M&E Engineering to be Significantly Overvalued.
Key valuation signals for ROCO:4550:
ROC (Joel Greenblatt) %: 31.87% (near median its 10-year median of 30.69)
GF Value™: NT$18.81 vs. price of NT$24.90 (32.4% above fair value)
Industry Position: 61.2% above the Construction median (#805 of 1780)
No single metric tells the full story. See the ROCO:4550 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Chang Jia M&E Engineering Corp is a Taiwan-based company engaged in the planning, design and engineering contracting of electrical, drainage and air conditioning equipment for various commercial buildings and factories, as well as the operation of sports centers and the import and export of the above-mentioned equipment.
57GF Score
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