Kumba Iron OreSTU:KUI -1.28%76 Net Margin % is 21.10% as of Dec. 2025, which is 10% below its 10-year median of 23.38. GuruFocus rates STU:KUI with a GF Score™ of 76/100 and a GF Value™ of €18.40 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 616 Steel companies, Kumba Iron Ore ranks better than 95.29% on this metric.
Net margin is calculated as Net Income divided by its Revenue. Kumba Iron Ore's Net Income for the
six
months ended in Dec. 2025 was €380 Mil. Kumba Iron Ore's Revenue for the
six
months ended in Dec. 2025 was €1,803 Mil. Therefore, Kumba Iron Ore's net margin for the quarter that ended in Dec. 2025 was 21.10%.
The historical rank and industry rank for Kumba Iron Ore's Net Margin % or its related term are showing as below:
STU:KUI'
s Net Margin % Range Over the Past 10 Years
Min: 20.22 Med: 23.38 Max: 32.58
Current: 20.85
STU:KUI's Net Margin % is ranked better than 95.29% of 616
companies
in the Steel industry
Industry Median: 1.86
vs STU:KUI: 20.85
Kumba Iron Ore (STU:KUI) Net Margin % Explanation
Although Net Income and Earnings-per-Share (EPS) are the most widely used parameter in measuring a company's profitability and valuation, it is the least reliable. The reason is that reported earnings can be manipulated easily by adjusting any numbers such as Depreciation, Depletion and Amotorization and non-recurring items.
But the long term trend of the net margin is a good indicator of the competitiveness and health of the business.
Kumba Iron Ore Net Margin % Related Terms
Kumba Iron Ore Net Margin % Historical Data
* Premium members only.
The historical data trend for Kumba Iron Ore's Net Margin % 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 Steel subindustry, Kumba Iron Ore's Net Margin %, along with its competitors' market caps and Net Margin % 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.
Kumba Iron Ore Net Margin % vs Steel Industry
For the Steel industry and Basic Materials sector, Kumba Iron Ore's Net Margin % distribution charts can be found below:
* The bar in red indicates where Kumba Iron Ore's Net Margin % falls into.
* 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 Net Margin % of 21.10% as of Dec. 2025. Net margin is the ratio of total net income to net sales. View historical data on Kumba Iron Ore and its competitors. This is 10% below median its historical median of 23.38. Over the past decade, Kumba Iron Ore's Net Margin % has ranged from 20.22 to 32.58. According to the industry distribution chart, Kumba Iron Ore ranks #29 out of 616 companies in the Steel industry, placing it in the top 4.7%.
Is Kumba Iron Ore's Net Margin % too high?
Kumba Iron Ore's current Net Margin % of 21.10% is 10% below median its 10-year median of 23.38. Over the past 10 years, this metric has ranged from a low of 20.22 to a high of 32.58. The Steel industry median Net Margin % is 1.86. Kumba Iron Ore's value of 21.10% is 1034.4% above this industry median. Based on the distribution chart, Kumba Iron Ore ranks #29 out of 616 companies in the Steel industry, which is in the top quartile — a strong position relative to peers. 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 Net Margin % compare to NUE and STLD?
According to the Steel industry distribution chart, Kumba Iron Ore ranks #29 out of 616 companies for Net Margin %. This places Kumba Iron Ore in the top 5% of its industry — outperforming the majority of peers. The industry median Net Margin % is 1.86. Kumba Iron Ore's value of 21.10% is 1034.4% above this benchmark. Historically, Kumba Iron Ore's own Net Margin % has ranged from 20.22 to 32.58 over the past decade. While the company's 10-year median is 23.38 vs. the industry median of 1.86, Kumba Iron Ore 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 Net Margin % for a Steel company?
The median Net Margin % among Steel companies is 1.86, based on 616 companies in the industry. Companies in the top quartile (top 25%) have a Net Margin % significantly above this median, while those in the bottom quartile fall well below. However, Net Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Kumba Iron Ore's current Net Margin % of 21.10% is 1034.4% 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 Net Margin % mean?
A high Net Margin % can signal that a stock is expensive relative to its fundamentals. Net margin is the ratio of total net income to net sales. View historical data on Kumba Iron Ore and its competitors. For the Steel industry, the median Net Margin % is 1.86 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Kumba Iron Ore's current Net Margin % is 21.10%, which is 10% below median its own 10-year median of 23.38. 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 Net Margin % is 21.10%, which is 10% below median its 10-year median of 23.38 and 1034.4% above the Steel industry median of 1.86. 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 Net Margin % calculated?
Net Margin % is calculated from a company's financial statements. For Kumba Iron Ore (STU:KUI), the current Net Margin % is 21.10% 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:
Net Margin %: 21.10% (10% below median its 10-year median of 23.38)
GF Value™: €18.40 vs. price of €15.40 (16.3% below fair value)
Industry Position: 1034.4% above the Steel median (#29 of 616)
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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