ProMOS Technologies (LUX:PROTFPC) ROC (Joel Greenblatt) %: -74.33% (As of Dec. 2025)


LUX:PROTFPC ProMOS Technologies Ltd LUX:PROTFPC
36 GF Score
Price $0.12
! 5 Warning Signs
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What is ProMOS Technologies ROC (Joel Greenblatt) %?

ProMOS Technologies LUX:PROTFPC 36 ROC (Joel Greenblatt) % is -74.33% as of Dec. 2025. GuruFocus rates LUX:PROTFPC with a GF Score™ of 36/100. The stock has 5 warning signs investors should review.

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. ProMOS Technologies's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was -74.33%.

The historical rank and industry rank for ProMOS Technologies's ROC (Joel Greenblatt) % or its related term are showing as below:

LUX:PROTFPC' s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -523.98   Med: 21.03   Max: 1260937.88
Current: -104.65

During the past 13 years, ProMOS Technologies's highest ROC (Joel Greenblatt) % was 1260937.88%. The lowest was -523.98%. And the median was 21.03%.

LUX:PROTFPC's ROC (Joel Greenblatt) % is not ranked
in the Semiconductors industry.
Industry Median: 8.35 vs LUX:PROTFPC: -104.65

ProMOS Technologies's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% per year.


ProMOS Technologies  (LUX:PROTFPC) 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.

Joel Greenblatt uses his definition of Return on Capital and Earnings Yield (Joel Greenblatt) % to rank companies.


ProMOS Technologies ROC (Joel Greenblatt) % Related Terms


ProMOS Technologies ROC (Joel Greenblatt) % Historical Data

* Premium members only.

The historical data trend for ProMOS Technologies'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.

ProMOS Technologies ROC (Joel Greenblatt) % Chart

ProMOS Technologies Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
ROC (Joel Greenblatt) %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 26.16 15.89 -36.85 -81.25 -102.83

ProMOS Technologies Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
ROC (Joel Greenblatt) % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only -66.63 -64.60 -84.25 -135.37 -74.33

LUX:PROTFPC vs LEDS, NLST: ROC (Joel Greenblatt) % Comparison

For the Semiconductors subindustry, ProMOS Technologies'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.


ProMOS Technologies ROC (Joel Greenblatt) % vs Semiconductors Industry

For the Semiconductors industry and Technology sector, ProMOS Technologies's ROC (Joel Greenblatt) % distribution charts can be found below:

* The bar in red indicates where ProMOS Technologies's ROC (Joel Greenblatt) % falls into.


LUX:PROTFPC
36GF Score
ProMOS Technologies Ltd LUX:PROTFPC
ROC (Joel Greenblatt) % is just one metric. See GF Score™, valuation, warning signs, and more.
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ProMOS Technologies 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:

ROC (Joel Greenblatt) %=EBIT/Average of (Net fixed Assets + Net Working Capital)

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.

Working Capital(Q: Jun. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(0.415 + 3.068 + 0.349) - (0.565 + 0 + 0.049)
=3.218

Working Capital(Q: Dec. 2025 )
=(Accounts Receivable + Total Inventories + Other Current Assets) - (Accounts Payable & Accrued Expense + Defer. Rev. + Other Current Liabilities)
=(0.463 + 2.867 + 0.071) - (0.778 + 0 + 0.075)
=2.548

When net working capital is negative, 0 is used.

So ROC (Joel Greenblatt) % of ProMOS Technologies for the quarter that ended in Dec. 2025 can be restated as:

ROC (Joel Greenblatt) %(Q: Dec. 2025 )
=EBIT/Average of (Net fixed Assets + Net Working Capital)
=EBIT/Average of (Property, Plant and Equipment+Net Working Capital)
     Q: Jun. 2025  Q: Dec. 2025
=EBIT/( ( (Property, Plant and Equipment + Net Working Capital) + (Property, Plant and Equipment + Net Working Capital) )/ count )
=-2.516/( ( (0.134 + max(3.218, 0)) + (0.87 + max(2.548, 0)) )/ 2 )
=-2.516/( ( 3.352 + 3.418 )/ 2 )
=-2.516/3.385
=-74.33 %

Note: The EBIT data used here is two times the semi-annual (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 -74.33% mean?
ProMOS Technologies (LUX:PROTFPC) has a ROC (Joel Greenblatt) % of -74.33% 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 ProMOS Technologies and its competitors.
Is ProMOS Technologies' ROC (Joel Greenblatt) % too high?
ProMOS Technologies' current ROC (Joel Greenblatt) % is -74.33%. Overall, ProMOS Technologies has a GF Score™ of 36/100, reflecting its overall financial health beyond just this single metric.
How does ProMOS Technologies' ROC (Joel Greenblatt) % compare to LEDS and NLST?
ProMOS Technologies' ROC (Joel Greenblatt) % of -74.33% can be compared against companies in the Semiconductors industry. The industry median ROC (Joel Greenblatt) % is 8.35. 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 8.35, based on 1,025 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 ProMOS Technologies and its competitors. For the Semiconductors industry, the median ROC (Joel Greenblatt) % is 8.35 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. ProMOS Technologies's current ROC (Joel Greenblatt) % is -74.33%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ProMOS Technologies stock overvalued right now?
ProMOS Technologies (LUX:PROTFPC) has a current ROC (Joel Greenblatt) % of -74.33%. The current ROC (Joel Greenblatt) % is -74.33%. ProMOS Technologies' overall GF Score™ is 36/100 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 ProMOS Technologies (LUX:PROTFPC), the current ROC (Joel Greenblatt) % is -74.33% 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.

ProMOS Technologies Business Description

Address No.19-1, Li-Hsin Road, Hsinchu Science Park, Hsinchu, TWN, 30078
ProMOS Technologies Ltd manufactures products and components pertaining to the semiconductor memory. It mainly manufactures Dynamic Random Access Memory (DRAM) and products related to the same. The company offers DDR3 SDRAM, DDR2 SDRAM, DDR SDRAM, SDRAM, mobile memory, and KGD products. It also creates simulation modules and data sheets. Geographically the activities are carried out through the region of Taiwan.
36GF 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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