ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. Kumba Iron Ore's annualized return on capital (ROC %) for the quarter that ended in Dec. 2025 was 25.44%.
As of today (2026-06-24), Kumba Iron Ore's WACC % is 14.38%. Kumba Iron Ore's ROC % is 24.49% (calculated using TTM income statement data).
Kumba Iron Ore generates higher returns on investment than it costs the company to raise the capital needed for that investment. It is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases.
Kumba Iron Ore (STU:KUI) ROC % Explanation
ROC % measures how well a company generates cash flow relative to the capital it has invested in its business. It is also called ROIC %. The reason book values of debt and equity are used is because the book values are the capital the company received when issuing the debt or receiving the equity investments.
There are four key components to this definition. The first is the use of operating income or EBIT rather than net income in the numerator. The second is the tax adjustment to this operating income or EBIT, computed as a hypothetical tax based on an effective or marginal tax rate. The third is the use of book values for invested capital, rather than market values. The final is the timing difference; the capital invested is from the end of the prior year whereas the operating income or EBIT is the current year's number.
Why is ROC % important?
Because it costs money to raise capital. A firm that generates higher returns on investment than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.
As of today, Kumba Iron Ore's WACC % is 14.38%. Kumba Iron Ore's ROC % is 24.49% (calculated using TTM income statement data).
Kumba Iron Ore generates higher returns on investment than it costs the company to raise the capital needed for that investment. It is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases.
Be Aware
Like ROE % and ROA %, ROC % is calculated with only 12 months of data. Fluctuations in the company's earnings or business cycles can affect the ratio drastically. It is important to look at the ratio from a long term perspective.
Kumba Iron Ore ROC % Related Terms
Kumba Iron Ore ROC % Historical Data
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The historical data trend for Kumba Iron Ore's ROC % 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.
Note:
The Operating Income data used here is two times the semi-annual (Dec. 2025) data.
The tax rate is limited to between 0% and 100%.
* 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.
Kumba Iron Ore (STU:KUI) has a ROC % of 25.44% as of Dec. 2025. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Kumba Iron Ore and its competitors.
Is Kumba Iron Ore's ROC % too high?
Kumba Iron Ore's current ROC % is 25.44%. The Steel industry median ROC % is 2.61. Kumba Iron Ore's value of 25.44% is 874.7% above this industry median. Overall, Kumba Iron Ore has a GF Score™ of 76/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Kumba Iron Ore's ROC % compare to NUE and STLD?
Kumba Iron Ore's ROC % of 25.44% can be compared against companies in the Steel industry. The industry median ROC % is 2.61. Kumba Iron Ore's value of 25.44% is 874.7% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good ROC % for a Steel company?
The median ROC % among Steel companies is 2.61, based on 625 companies in the industry. Companies in the top quartile (top 25%) have a ROC % significantly above this median, while those in the bottom quartile fall well below. However, ROC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Kumba Iron Ore's current ROC % of 25.44% is 874.7% 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 % mean?
A high ROC % can signal that a stock is expensive relative to its fundamentals. Return on capital is the ratio of current-period net income to average two-period capital. View historical data on Kumba Iron Ore and its competitors. For the Steel industry, the median ROC % is 2.61 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Kumba Iron Ore's current ROC % is 25.44%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Kumba Iron Ore stock overvalued right now?
Based on GuruFocus' analysis, Kumba Iron Ore (STU:KUI) is currently considered Modestly Undervalued. The stock's GF Value™ is €18.40, compared to a current price of €15.40 — trading 16.3% below its estimated fair value. The current ROC % is 25.44% and 874.7% above the Steel industry median of 2.61. Kumba Iron Ore's overall GF Score™ is 76/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is ROC % calculated?
ROC % is calculated from a company's financial statements. For Kumba Iron Ore (STU:KUI), the current ROC % is 25.44% 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 Kumba Iron Ore (STU:KUI) Overvalued in 2026?
Based on GuruFocus' analysis, Kumba Iron Ore stock appears to be undervalued.
The current stock price of €15.40 is trading 16.3% below its estimated GF Value™ of €18.40.
GuruFocus considers Kumba Iron Ore to be Modestly Undervalued.
Key valuation signals for STU:KUI:
ROC %: 25.44%
GF Value™: €18.40 vs. price of €15.40 (16.3% below fair value)
No single metric tells the full story. See the STU:KUI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Kumba Iron Ore Ltd is engaged in the exploration, mining, processing, blending, and sale of iron ore to the steel industry. The company operates in South Africa, with mining operations in the Northern Cape and Limpopo provinces, as well as a head office in Centurion, Gauteng, and a port operation in Saldanha Bay, Western Cape. The company's flagship asset is the Sishen mine, which it holds a majority stake in, located near the town of Kathu in the Northern Cape Province. The Sishen mine is opencast and produces the bulk of the group's iron ore, which is exported. It also holds an interest in the Kolomela mine. The company also generates revenue from Shipping operations. The majority of the company's revenue is generated from its products.
76GF Score
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