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Prosperity Dielectrics CoROCO:6173 +9.83%59 ROC (Joel Greenblatt) % is 48.80% as of Mar. 2026, which is 28% above its 10-year median of 38.19. GuruFocus rates ROCO:6173 with a GF Score™ of 59/100 and a GF Value™ of NT$56.77 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 2,492 Hardware companies, Prosperity Dielectrics Co ranks better than 82.62% 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. Prosperity Dielectrics Co's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 48.80%.
The historical rank and industry rank for Prosperity Dielectrics Co's ROC (Joel Greenblatt) % or its related term are showing as below:
ROCO:6173'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: 20.94 Med: 38.19 Max: 157.86
Current: 38.53
During the past 13 years, Prosperity Dielectrics Co's highest ROC (Joel Greenblatt) % was 157.86%. The lowest was 20.94%. And the median was 38.19%.
ROCO:6173's ROC (Joel Greenblatt) % is ranked better than 82.62% of 2492
companies
in the Hardware industry
Industry Median: 10.51
vs ROCO:6173: 38.53
Prosperity Dielectrics Co's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was -10.70% per year.
Prosperity Dielectrics Co (ROCO:6173) 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.
Prosperity Dielectrics Co ROC (Joel Greenblatt) % Related Terms
Prosperity Dielectrics Co ROC (Joel Greenblatt) % Historical Data
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The historical data trend for Prosperity Dielectrics 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.
Prosperity Dielectrics Co ROC (Joel Greenblatt) % Chart
ROCO:6173 vs APH, GLW, TEL: ROC (Joel Greenblatt) % Comparison
For the Electronic Components subindustry, Prosperity Dielectrics 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.
Prosperity Dielectrics Co ROC (Joel Greenblatt) % vs Hardware Industry
For the Hardware industry and Technology sector, Prosperity Dielectrics Co's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Prosperity Dielectrics Co's ROC (Joel Greenblatt) % falls into.
Prosperity Dielectrics 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 48.80% mean?
Prosperity Dielectrics Co (ROCO:6173) has a ROC (Joel Greenblatt) % of 48.80% 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 Prosperity Dielectrics Co and its competitors. This is 28% above median its historical median of 38.19. Over the past decade, Prosperity Dielectrics Co's ROC (Joel Greenblatt) % has ranged from 20.94 to 157.86. According to the industry distribution chart, Prosperity Dielectrics Co ranks #433 out of 2492 companies in the Hardware industry, placing it in the top 17.4%.
Is Prosperity Dielectrics Co's ROC (Joel Greenblatt) % too high?
Prosperity Dielectrics Co's current ROC (Joel Greenblatt) % of 48.80% is 28% above median its 10-year median of 38.19. Over the past 10 years, this metric has ranged from a low of 20.94 to a high of 157.86. The Hardware industry median ROC (Joel Greenblatt) % is 10.51. Prosperity Dielectrics Co's value of 48.80% is 364.3% above this industry median. Based on the distribution chart, Prosperity Dielectrics Co ranks #433 out of 2492 companies in the Hardware industry, which is in the top quartile — a strong position relative to peers. Overall, Prosperity Dielectrics Co has a GF Score™ of 59/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Prosperity Dielectrics Co's ROC (Joel Greenblatt) % compare to APH and GLW?
According to the Hardware industry distribution chart, Prosperity Dielectrics Co ranks #433 out of 2492 companies for ROC (Joel Greenblatt) %. This places Prosperity Dielectrics Co in the top 17% of its industry — outperforming the majority of peers. The industry median ROC (Joel Greenblatt) % is 10.51. Prosperity Dielectrics Co's value of 48.80% is 364.3% above this benchmark. Historically, Prosperity Dielectrics Co's own ROC (Joel Greenblatt) % has ranged from 20.94 to 157.86 over the past decade. While the company's 10-year median is 38.19 vs. the industry median of 10.51, Prosperity Dielectrics 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 Hardware company?
The median ROC (Joel Greenblatt) % among Hardware companies is 10.51, based on 2,492 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. Prosperity Dielectrics Co's current ROC (Joel Greenblatt) % of 48.80% is 364.3% 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 Prosperity Dielectrics Co and its competitors. For the Hardware industry, the median ROC (Joel Greenblatt) % is 10.51 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Prosperity Dielectrics Co's current ROC (Joel Greenblatt) % is 48.80%, which is 28% above median its own 10-year median of 38.19. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Prosperity Dielectrics Co stock overvalued right now?
Based on GuruFocus' analysis, Prosperity Dielectrics Co (ROCO:6173) is currently considered Significantly Overvalued. The stock's GF Value™ is NT$56.77, compared to a current price of NT$223.50 — trading 293.7% above its estimated fair value. The current ROC (Joel Greenblatt) % is 48.80%, which is 28% above median its 10-year median of 38.19 and 364.3% above the Hardware industry median of 10.51. Prosperity Dielectrics Co's overall GF Score™ is 59/100 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 Prosperity Dielectrics Co (ROCO:6173), the current ROC (Joel Greenblatt) % is 48.80% 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 Prosperity Dielectrics Co (ROCO:6173) Overvalued in 2026?
Based on GuruFocus' analysis, Prosperity Dielectrics Co stock appears to be overvalued.
The current stock price of NT$223.50 is trading 293.7% above its estimated GF Value™ of NT$56.77.
GuruFocus considers Prosperity Dielectrics Co to be Significantly Overvalued.
Key valuation signals for ROCO:6173:
ROC (Joel Greenblatt) %: 48.80% (28% above median its 10-year median of 38.19)
GF Value™: NT$56.77 vs. price of NT$223.50 (293.7% above fair value)
Industry Position: 364.3% above the Hardware median (#433 of 2492)
No single metric tells the full story. See the ROCO:6173 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Prosperity Dielectrics Co Ltd mainly manufactures, processes and sells multilayer ceramic capacitors (MLCC), chip resistors and ceramic dielectric powders. The company has two segment Taiwan segment, and China segment. The company generates majority of revenue from Taiwan segment. The Group operates in three principal geographical areas - Asia, America and Europe. Its products are Multilayer Ceramic Capacitors includes FK/FH Safety Certified Capacitor, FV High Voltage Capacitor; Chip Resistors includes Current Sensing, Wide Terminal, Automotive, High Voltage; Inductor includes Air Wound Coil, Wire-Wound Ceramic, Chip Inductor, Common Mode Choke; Ceramic Dielectric Powders includes Barium Titanate Powder, MLCC Formulations, Microwave; Varistor includes MutiLayer Varistor Varistor, etc.
59GF Score
Get the complete analysis for ROCO:6173
ROC (Joel Greenblatt) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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