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Yankey Engineering CoTPE:6691 +0.55%98 ROC (Joel Greenblatt) % is 553.89% as of Mar. 2026, which is 109% above its 10-year median of 264.97. GuruFocus rates TPE:6691 with a GF Score™ of 98/100 and a GF Value™ of NT$639.41 (Modestly Overvalued). The stock has 6 warning signs investors should review. Among 1,782 Construction companies, Yankey Engineering Co ranks better than 97.42% 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. Yankey Engineering Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 553.89%.
The historical rank and industry rank for Yankey Engineering Co's ROC (Joel Greenblatt) % or its related term are showing as below:
TPE:6691'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 82.76 Med: 264.97 Max: 631.05
Current: 630.56
During the past 12 years, Yankey Engineering Co's highest ROC (Joel Greenblatt) % was 631.05%. The lowest was 82.76%. And the median was 264.97%.
TPE:6691's ROC (Joel Greenblatt) % is ranked better than 97.42% of 1782
companies
in the Construction industry
Industry Median: 19.6
vs TPE:6691: 630.56
Yankey Engineering Co's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 27.50% per year.
Yankey Engineering Co (TPE:6691) 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.
Yankey Engineering Co ROC (Joel Greenblatt) % Related Terms
Yankey Engineering Co ROC (Joel Greenblatt) % Historical Data
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The historical data trend for Yankey Engineering 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.
Yankey Engineering Co ROC (Joel Greenblatt) % Chart
TPE:6691 vs PWR, FIX, EME: ROC (Joel Greenblatt) % Comparison
For the Engineering & Construction subindustry, Yankey Engineering 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.
Yankey Engineering Co ROC (Joel Greenblatt) % vs Construction Industry
For the Construction industry and Industrials sector, Yankey Engineering Co's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Yankey Engineering Co's ROC (Joel Greenblatt) % falls into.
Yankey Engineering 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 553.89% mean?
Yankey Engineering Co (TPE:6691) has a ROC (Joel Greenblatt) % of 553.89% 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 Yankey Engineering Co and its competitors. This is 109% above median its historical median of 264.97. Over the past decade, Yankey Engineering Co's ROC (Joel Greenblatt) % has ranged from 82.76 to 631.05. According to the industry distribution chart, Yankey Engineering Co ranks #46 out of 1782 companies in the Construction industry, placing it in the top 2.6%.
Is Yankey Engineering Co's ROC (Joel Greenblatt) % too high?
Yankey Engineering Co's current ROC (Joel Greenblatt) % of 553.89% is 109% above median its 10-year median of 264.97. Over the past 10 years, this metric has ranged from a low of 82.76 to a high of 631.05. The Construction industry median ROC (Joel Greenblatt) % is 19.60. Yankey Engineering Co's value of 553.89% is 2726% above this industry median. Based on the distribution chart, Yankey Engineering Co ranks #46 out of 1782 companies in the Construction industry, which is in the top quartile — a strong position relative to peers. Overall, Yankey Engineering Co has a GF Score™ of 98/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Yankey Engineering Co's ROC (Joel Greenblatt) % compare to PWR and FIX?
According to the Construction industry distribution chart, Yankey Engineering Co ranks #46 out of 1782 companies for ROC (Joel Greenblatt) %. This places Yankey Engineering Co in the top 3% of its industry — outperforming the majority of peers. The industry median ROC (Joel Greenblatt) % is 19.60. Yankey Engineering Co's value of 553.89% is 2726% above this benchmark. Historically, Yankey Engineering Co's own ROC (Joel Greenblatt) % has ranged from 82.76 to 631.05 over the past decade. While the company's 10-year median is 264.97 vs. the industry median of 19.60, Yankey Engineering 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 Construction company?
The median ROC (Joel Greenblatt) % among Construction companies is 19.60, based on 1,782 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. Yankey Engineering Co's current ROC (Joel Greenblatt) % of 553.89% is 2726% 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 Yankey Engineering Co and its competitors. For the Construction industry, the median ROC (Joel Greenblatt) % is 19.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Yankey Engineering Co's current ROC (Joel Greenblatt) % is 553.89%, which is 109% above median its own 10-year median of 264.97. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Yankey Engineering Co stock overvalued right now?
Based on GuruFocus' analysis, Yankey Engineering Co (TPE:6691) is currently considered Modestly Overvalued. The stock's GF Value™ is NT$639.41, compared to a current price of NT$713.00 — trading 11.5% above its estimated fair value. The current ROC (Joel Greenblatt) % is 553.89%, which is 109% above median its 10-year median of 264.97 and 2726% above the Construction industry median of 19.60. Yankey Engineering Co's overall GF Score™ is 98/100 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 Yankey Engineering Co (TPE:6691), the current ROC (Joel Greenblatt) % is 553.89% 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 Yankey Engineering Co (TPE:6691) Overvalued in 2026?
Based on GuruFocus' analysis, Yankey Engineering Co stock appears to be overvalued.
The current stock price of NT$713.00 is trading 11.5% above its estimated GF Value™ of NT$639.41.
GuruFocus considers Yankey Engineering Co to be Modestly Overvalued.
Key valuation signals for TPE:6691:
ROC (Joel Greenblatt) %: 553.89% (109% above median its 10-year median of 264.97)
GF Value™: NT$639.41 vs. price of NT$713.00 (11.5% above fair value)
Industry Position: 2726% above the Construction median (#46 of 1782)
No single metric tells the full story. See the TPE:6691 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Yankey Engineering Co Ltd is engaged in the design and installation of clean room systems, refrigeration, air conditioning systems, and ice-making systems, as well as the sales of materials for these systems. The various services offered by the company include clean room system engineering, high and low voltage transmission system installation, design and construction of fire, water, and electrical systems, and providing comprehensive MEP (Mechanical, Electrical, Plumbing) turnkey services for commercial office buildings, among others. Geographically, the company generates the majority of its revenue from Taiwan and the rest from China, Thailand, Malaysia, and the USA.
98GF Score
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