Rio TintoASX:RIO -1.19%78 Net Margin % is 17.68% as of Dec. 2025, which is 19% below its 10-year median of 21.71. GuruFocus rates ASX:RIO with a GF Score™ of 78/100 and a GF Value™ of A$128.11 (Significantly Overvalued). The stock has 10 warning signs investors should review. Among 843 Metals & Mining companies, Rio Tinto ranks better than 74.38% on this metric.
Net margin is calculated as Net Income divided by its Revenue. Rio Tinto's Net Income for the
six
months ended in Dec. 2025 was A$8,184 Mil. Rio Tinto's Revenue for the
six
months ended in Dec. 2025 was A$46,301 Mil. Therefore, Rio Tinto's net margin for the quarter that ended in Dec. 2025 was 17.68%.
The historical rank and industry rank for Rio Tinto's Net Margin % or its related term are showing as below:
ASX:RIO'
s Net Margin % Range Over the Past 10 Years
Min: 13.67 Med: 21.71 Max: 33.66
Current: 17.29
ASX:RIO's Net Margin % is ranked better than 74.38% of 843
companies
in the Metals & Mining industry
Industry Median: 3.41
vs ASX:RIO: 17.29
Rio Tinto (ASX:RIO) 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.
Rio Tinto Net Margin % Related Terms
Rio Tinto Net Margin % Historical Data
* Premium members only.
The historical data trend for Rio Tinto'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 Other Industrial Metals & Mining subindustry, Rio Tinto'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.
Rio Tinto Net Margin % vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Rio Tinto's Net Margin % distribution charts can be found below:
* The bar in red indicates where Rio Tinto'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.
Rio Tinto (ASX:RIO) has a Net Margin % of 17.68% as of Dec. 2025. Net margin is the ratio of total net income to net sales. View historical data on Rio Tinto and its competitors. This is 19% below median its historical median of 21.71. Over the past decade, Rio Tinto's Net Margin % has ranged from 13.67 to 33.66. According to the industry distribution chart, Rio Tinto ranks #216 out of 843 companies in the Metals & Mining industry, placing it in the top 25.6%.
Is Rio Tinto's Net Margin % too high?
Rio Tinto's current Net Margin % of 17.68% is 19% below median its 10-year median of 21.71. Over the past 10 years, this metric has ranged from a low of 13.67 to a high of 33.66. The Metals & Mining industry median Net Margin % is 3.41. Rio Tinto's value of 17.68% is 418.5% above this industry median. Based on the distribution chart, Rio Tinto ranks #216 out of 843 companies in the Metals & Mining industry, which is above the industry midpoint. Overall, Rio Tinto has a GF Score™ of 78/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Rio Tinto's Net Margin % compare to competitors?
According to the Metals & Mining industry distribution chart, Rio Tinto ranks #216 out of 843 companies for Net Margin %. This puts Rio Tinto in the upper half of its industry. The industry median Net Margin % is 3.41. Rio Tinto's value of 17.68% is 418.5% above this benchmark. Historically, Rio Tinto's own Net Margin % has ranged from 13.67 to 33.66 over the past decade. While the company's 10-year median is 21.71 vs. the industry median of 3.41, Rio Tinto 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 Metals & Mining company?
The median Net Margin % among Metals & Mining companies is 3.41, based on 843 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. Rio Tinto's current Net Margin % of 17.68% is 418.5% 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 Rio Tinto and its competitors. For the Metals & Mining industry, the median Net Margin % is 3.41 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rio Tinto's current Net Margin % is 17.68%, which is 19% below median its own 10-year median of 21.71. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rio Tinto stock overvalued right now?
Based on GuruFocus' analysis, Rio Tinto (ASX:RIO) is currently considered Significantly Overvalued. The stock's GF Value™ is A$128.11, compared to a current price of A$173.92 — trading 35.8% above its estimated fair value. The current Net Margin % is 17.68%, which is 19% below median its 10-year median of 21.71 and 418.5% above the Metals & Mining industry median of 3.41. Rio Tinto's overall GF Score™ is 78/100 with 10 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 Rio Tinto (ASX:RIO), the current Net Margin % is 17.68% 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 Rio Tinto (ASX:RIO) Overvalued in 2026?
Based on GuruFocus' analysis, Rio Tinto stock appears to be overvalued.
The current stock price of A$173.92 is trading 35.8% above its estimated GF Value™ of A$128.11.
GuruFocus considers Rio Tinto to be Significantly Overvalued.
Key valuation signals for ASX:RIO:
Net Margin %: 17.68% (19% below median its 10-year median of 21.71)
GF Value™: A$128.11 vs. price of A$173.92 (35.8% above fair value)
Industry Position: 418.5% above the Metals & Mining median (#216 of 843)
No single metric tells the full story. See the ASX:RIO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rio Tinto is a global diversified miner. Iron ore is its major commodity, with lesser contributions from copper and aluminum. Lithium, diamonds, gold, and industrial minerals are more minor contributors. The 1995 merger of RTZ and CRA, via a dual-listed structure, created the present-day company. The two operate as a single business entity, with shareholders in each company having equivalent economic and voting rights. Major assets included the Pilbara iron ore operations, a 30% stake in the Escondida copper mine, 66%-ownership of the Oyu Tolgoi copper mine in Mongolia, the Weipa and Gove bauxite mines in Australia, and six hydro-powered aluminum smelters in Canada.
78GF Score
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