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Izo-BlokWAR:IZB 69 ROC (Joel Greenblatt) % is 10.59% as of Mar. 2026, which is 144% above its 10-year median of 4.34. GuruFocus rates WAR:IZB with a GF Score™ of 69/100 and a GF Value™ of zł56.97 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 1,329 Vehicles & Parts companies, Izo-Blok ranks worse than 58.47% 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. Izo-Blok's annualized ROC (Joel Greenblatt) % for the quarter that ended in Mar. 2026 was 10.59%.
The historical rank and industry rank for Izo-Blok's ROC (Joel Greenblatt) % or its related term are showing as below:
WAR:IZB'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -20.26 Med: 4.34 Max: 24.81
Current: 9.25
During the past 13 years, Izo-Blok's highest ROC (Joel Greenblatt) % was 24.81%. The lowest was -20.26%. And the median was 4.34%.
WAR:IZB's ROC (Joel Greenblatt) % is ranked worse than 58.47% of 1329
companies
in the Vehicles & Parts industry
Industry Median: 12.08
vs WAR:IZB: 9.25
Izo-Blok's 5-Year average Growth Rate of ROC (Joel Greenblatt) % was 0.00% 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.
The historical data trend for Izo-Blok'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.
WAR:IZB vs ORLY, AZO, GPC: ROC (Joel Greenblatt) % Comparison
For the Auto Parts subindustry, Izo-Blok'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.
Izo-Blok ROC (Joel Greenblatt) % vs Vehicles & Parts Industry
For the Vehicles & Parts industry and Consumer Cyclical sector, Izo-Blok's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Izo-Blok'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 10.59% mean?
Izo-Blok (WAR:IZB) has a ROC (Joel Greenblatt) % of 10.59% 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 Izo-Blok and its competitors. This is 144% above median its historical median of 4.34. According to the industry distribution chart, Izo-Blok ranks #777 out of 1329 companies in the Vehicles & Parts industry, placing it in the top 58.5%.
Is Izo-Blok's ROC (Joel Greenblatt) % too high?
Izo-Blok's current ROC (Joel Greenblatt) % of 10.59% is 144% above median its 10-year median of 4.34. The Vehicles & Parts industry median ROC (Joel Greenblatt) % is 12.08. Izo-Blok's value of 10.59% is 12.3% below this industry median. Based on the distribution chart, Izo-Blok ranks #777 out of 1329 companies in the Vehicles & Parts industry, which is below the industry midpoint. Overall, Izo-Blok has a GF Score™ of 69/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Izo-Blok's ROC (Joel Greenblatt) % compare to ORLY and AZO?
According to the Vehicles & Parts industry distribution chart, Izo-Blok ranks #777 out of 1329 companies for ROC (Joel Greenblatt) %. This places Izo-Blok in the lower half of its industry. The industry median ROC (Joel Greenblatt) % is 12.08. Izo-Blok's value of 10.59% is 12.3% below this benchmark. While the company's 10-year median is 4.34 vs. the industry median of 12.08, Izo-Blok has consistently been below 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 Vehicles & Parts company?
The median ROC (Joel Greenblatt) % among Vehicles & Parts companies is 12.08, based on 1,329 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. Izo-Blok's current ROC (Joel Greenblatt) % of 10.59% is 12.3% below 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 Izo-Blok and its competitors. For the Vehicles & Parts industry, the median ROC (Joel Greenblatt) % is 12.08 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Izo-Blok's current ROC (Joel Greenblatt) % is 10.59%, which is 144% above median its own 10-year median of 4.34. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Izo-Blok stock overvalued right now?
Based on GuruFocus' analysis, Izo-Blok (WAR:IZB) is currently considered Possible Value Trap. The stock's GF Value™ is zł56.97, compared to a current price of zł39.00 — trading 31.5% below its estimated fair value. The current ROC (Joel Greenblatt) % is 10.59%, which is 144% above median its 10-year median of 4.34 and 12.3% below the Vehicles & Parts industry median of 12.08. Izo-Blok's overall GF Score™ is 69/100 with 7 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 Izo-Blok (WAR:IZB), the current ROC (Joel Greenblatt) % is 10.59% 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 Izo-Blok (WAR:IZB) Overvalued in 2026?
Based on GuruFocus' analysis, Izo-Blok stock appears to be undervalued.
The current stock price of zł39.00 is trading 31.5% below its estimated GF Value™ of zł56.97.
GuruFocus considers Izo-Blok to be Possible Value Trap.
Key valuation signals for WAR:IZB:
ROC (Joel Greenblatt) %: 10.59% (144% above median its 10-year median of 4.34)
GF Value™: zł56.97 vs. price of zł39.00 (31.5% below fair value)
Industry Position: 12.3% below the Vehicles & Parts median (#777 of 1329)
No single metric tells the full story. See the WAR:IZB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Izo-Blok SA is a provider of expanded polypropylene (EPP) components to the automotive industry. The products manufactured from EPP are used in the automotive, logistics and HVAC industries as structural and protective elements.
69GF Score
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