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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. Productive Technologies Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Sep. 2025 was -18.94%.
The historical rank and industry rank for Productive Technologies Co's ROC (Joel Greenblatt) % or its related term are showing as below:
STU:SUT'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -80.55 Med: -37.46 Max: 8.42
Current: -27.68
During the past 13 years, Productive Technologies Co's highest ROC (Joel Greenblatt) % was 8.42%. The lowest was -80.55%. And the median was -37.46%.
STU:SUT's ROC (Joel Greenblatt) % is ranked worse than 85.31% of 1028
companies
in the Semiconductors industry
Industry Median: 8.265
vs STU:SUT: -27.68
Productive Technologies Co (STU:SUT) 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.
* 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.
Productive Technologies Co ROC (Joel Greenblatt) % Chart
STU:SUT vs AMAT, LRCX, KLAC: ROC (Joel Greenblatt) % Comparison
For the Semiconductor Equipment & Materials subindustry, Productive Technologies 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.
Productive Technologies Co ROC (Joel Greenblatt) % vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Productive Technologies Co's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Productive Technologies Co's ROC (Joel Greenblatt) % falls into.
Productive Technologies 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 two times the semi-annual (Sep. 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 -18.94% mean?
Productive Technologies Co (STU:SUT) has a ROC (Joel Greenblatt) % of -18.94% as of Sep. 2025. Joel Greenblatt's return on capital is the ratio of EBIT to average fixed assets and net working capital. View historical data on Productive Technologies Co and its competitors. According to the industry distribution chart, Productive Technologies Co ranks #877 out of 1028 companies in the Semiconductors industry, placing it in the top 85.3%.
Is Productive Technologies Co's ROC (Joel Greenblatt) % too high?
Productive Technologies Co's current ROC (Joel Greenblatt) % is -18.94%. Based on the distribution chart, Productive Technologies Co ranks #877 out of 1028 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Productive Technologies Co has a GF Score™ of 30/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Productive Technologies Co's ROC (Joel Greenblatt) % compare to AMAT and LRCX?
According to the Semiconductors industry distribution chart, Productive Technologies Co ranks #877 out of 1028 companies for ROC (Joel Greenblatt) %. This places Productive Technologies Co in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 8.27. 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 Semiconductors company?
The median ROC (Joel Greenblatt) % among Semiconductors companies is 8.27, based on 1,028 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 Productive Technologies Co and its competitors. For the Semiconductors industry, the median ROC (Joel Greenblatt) % is 8.27 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Productive Technologies Co's current ROC (Joel Greenblatt) % is -18.94%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Productive Technologies Co stock overvalued right now?
Based on GuruFocus' analysis, Productive Technologies Co (STU:SUT) is currently considered Significantly Overvalued. The stock's GF Value™ is €0.02, compared to a current price of €0.03 — trading 35% above its estimated fair value. The current ROC (Joel Greenblatt) % is -18.94%. Productive Technologies Co's overall GF Score™ is 30/100 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 Productive Technologies Co (STU:SUT), the current ROC (Joel Greenblatt) % is -18.94% as of Sep. 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 Productive Technologies Co (STU:SUT) Overvalued in 2026?
Based on GuruFocus' analysis, Productive Technologies Co stock appears to be overvalued.
The current stock price of €0.03 is trading 35% above its estimated GF Value™ of €0.02.
GuruFocus considers Productive Technologies Co to be Significantly Overvalued.
Key valuation signals for STU:SUT:
ROC (Joel Greenblatt) %: -18.94%
GF Value™: €0.02 vs. price of €0.03 (35% above fair value)
No single metric tells the full story. See the STU:SUT stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Productive Technologies Co Ltd is engaged in the business of productivity-driven equipment applied in semiconductor and solar cell businesses. It also operates an oil and gas production project in the PRC. It offers sustainable growth and supply chain re-optimization of the semiconductor and solar power market and is committed to high-productivity solutions to industrial manufacturers. It has two segments, including semiconductor and solar cells, and Oil and gas and others segments. It generates the majority of its revenue from the Oil and gas and others: this segment invests in and operates an upstream oil and gas business, LNG business, and generates income from the processing of oil and gas and LNG, as well as investing and managing energy-related and other industries and businesses.
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