Iluka ResourcesILKAF -6.60%71 ROC (Joel Greenblatt) % is -37.96% as of Dec. 2025. GuruFocus rates ILKAF with a GF Score™ of 71/100 and a GF Value™ of $3.31 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 2,499 Metals & Mining companies, Iluka Resources ranks better than 55.74% 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. Iluka Resources's annualized ROC (Joel Greenblatt) % for the quarter that ended in Dec. 2025 was -37.96%.
The historical rank and industry rank for Iluka Resources's ROC (Joel Greenblatt) % or its related term are showing as below:
ILKAF'
s ROC (Joel Greenblatt) % Range Over the Past 10 Years
Min: -16.57 Med: 14.31 Max: 48.34
Current: -14.81
During the past 13 years, Iluka Resources's highest ROC (Joel Greenblatt) % was 48.34%. The lowest was -16.57%. And the median was 14.31%.
ILKAF's ROC (Joel Greenblatt) % is ranked better than 55.74% of 2499
companies
in the Metals & Mining industry
Industry Median: -22.36
vs ILKAF: -14.81
Iluka Resources'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.
Iluka Resources ROC (Joel Greenblatt) % Related Terms
Iluka Resources ROC (Joel Greenblatt) % Historical Data
* Premium members only.
The historical data trend for Iluka Resources'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.
For the Other Industrial Metals & Mining subindustry, Iluka Resources'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.
Iluka Resources ROC (Joel Greenblatt) % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Iluka Resources's ROC (Joel Greenblatt) % distribution charts can be found below:
* The bar in red indicates where Iluka Resources'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 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 -37.96% mean?
Iluka Resources (ILKAF) has a ROC (Joel Greenblatt) % of -37.96% 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 Iluka Resources and its competitors. According to the industry distribution chart, Iluka Resources ranks #1106 out of 2499 companies in the Metals & Mining industry, placing it in the top 44.3%.
Is Iluka Resources' ROC (Joel Greenblatt) % too high?
Iluka Resources' current ROC (Joel Greenblatt) % is -37.96%. Based on the distribution chart, Iluka Resources ranks #1106 out of 2499 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, Iluka Resources has a GF Score™ of 71/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Iluka Resources' ROC (Joel Greenblatt) % compare to competitors?
According to the Metals & Mining industry distribution chart, Iluka Resources ranks #1106 out of 2499 companies for ROC (Joel Greenblatt) %. This puts Iluka Resources in the upper half of its industry. 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 Metals & Mining company?
A good ROC (Joel Greenblatt) % depends on the Metals & Mining industry context. 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 Iluka Resources and its competitors. Iluka Resources's current ROC (Joel Greenblatt) % is -37.96%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Iluka Resources stock overvalued right now?
Based on GuruFocus' analysis, Iluka Resources (ILKAF) is currently considered Significantly Overvalued. The stock's GF Value™ is $3.31, compared to a current price of $4.60 — trading 39% above its estimated fair value. The current ROC (Joel Greenblatt) % is -37.96%. Iluka Resources' overall GF Score™ is 71/100 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 Iluka Resources (ILKAF), the current ROC (Joel Greenblatt) % is -37.96% 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.
Is Iluka Resources (ILKAF) Overvalued in 2026?
Based on GuruFocus' analysis, Iluka Resources stock appears to be overvalued.
The current stock price of $4.60 is trading 39% above its estimated GF Value™ of $3.31.
GuruFocus considers Iluka Resources to be Significantly Overvalued.
Key valuation signals for ILKAF:
ROC (Joel Greenblatt) %: -37.96%
GF Value™: $3.31 vs. price of $4.60 (39% above fair value)
No single metric tells the full story. See the ILKAF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Iluka Resources is a leading global mineral sands miner. It is the largest global producer of zircon, and one of the largest producers of titanium dioxide feedstocks (rutile, synthetic rutile). Low zircon costs are underpinned by the high-grade Jacinth-Ambrosia mine in South Australia, but reserve life is less than 10 years. A 20% shareholding in Deterra Royalties brings exposure to the high-quality Mining Area C iron ore royalty. Production from the Balranald rutile and zircon mine commenced in late 2025, and Iluka is also building a rare-earth refinery at Eneabba. The refinery will be able to process Iluka's existing monazite stockpile as well as feed from third parties, Balranald, and future Iluka projects.
71GF Score
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