Shares outstanding are shares that have been authorized, issued, and purchased by investors and are held by them. Rio Tinto's average basic shares outstanding for the quarter that ended in Dec. 2025 was 1,624 Mil.
Rio Tinto (BSP:RIOT34) Shares Outstanding (Basic Average) Explanation
A company may buy back shares or issue shares in any fiscal period. If a company buys back shares, we should observe that the total number of shares decline. If the company issues new shares, the number of shares outstanding increases.
Be Aware
Usually the presence of treasury shares and a history of buyback are good indicators that company has competitive advantage. But studies have shown that companies usually buy back at wrong time. Buying back shares below its intrinsic value increases value for remaining shareholders. Buying back overvalued shares destroys value for existing shareholders.
Rio Tinto Shares Outstanding (Basic Average) Related Terms
Rio Tinto Shares Outstanding (Basic Average) Historical Data
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The historical data trend for Rio Tinto's Shares Outstanding (Basic Average) 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.
Rio Tinto Shares Outstanding (Basic Average) Chart
Rio Tinto Shares Outstanding (Basic Average) Calculation
Shares outstanding are shares that have been authorized, issued, and purchased by investors and are held by them. They have voting rights and represent ownership in the corporation by the person that holds the shares. They should be distinguished from treasury shares, which are shares held by the corporation itself, having no exercisable rights.
Shares outstanding can be calculated as either basic or fully diluted. The fully diluted shares outstanding count includes diluting securities, such as options, warrants or convertibles.
Please note: GuruFocus named Shares Outstanding (EOP) is the shares for that exact time point. It is usually used to calculate balance sheet related items, such as Book Value per Share, etc. While Shares Outstanding (Diluted Average) and Shares Outstanding (Basic Average) are the weighted average shares over a period of time (a year, a quarter, or so). They are usually used to calculate income statement or cashflow statement related items, such as Earnings per Share (Diluted), etc.
What does a Shares Outstanding (Basic Average) of 1,624 Mil mean?
Rio Tinto (BSP:RIOT34) has a Shares Outstanding (Basic Average) of 1,624 Mil as of Dec. 2025. The average shares outstanding over two periods not accounting for dilutive securities like convertible bonds. View historical data on Rio Tinto and its competitors.
Is Rio Tinto's Shares Outstanding (Basic Average) too high?
Rio Tinto's current Shares Outstanding (Basic Average) is 1,624 Mil. Overall, Rio Tinto has a GF Score™ of 64/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Rio Tinto's Shares Outstanding (Basic Average) compare to competitors?
Rio Tinto's Shares Outstanding (Basic Average) of 1,624 Mil can be compared against companies in the Metals & Mining industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shares Outstanding (Basic Average) for a Metals & Mining company?
A good Shares Outstanding (Basic Average) depends on the Metals & Mining industry context. However, Shares Outstanding (Basic Average) 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 Shares Outstanding (Basic Average) mean?
A high Shares Outstanding (Basic Average) can signal that a stock is expensive relative to its fundamentals. The average shares outstanding over two periods not accounting for dilutive securities like convertible bonds. View historical data on Rio Tinto and its competitors. Rio Tinto's current Shares Outstanding (Basic Average) is 1,624 Mil. 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 (BSP:RIOT34) is currently considered Significantly Overvalued. The stock's GF Value™ is R$358.67, compared to a current price of R$494.00 — trading 37.7% above its estimated fair value. The current Shares Outstanding (Basic Average) is 1,624 Mil. Rio Tinto's overall GF Score™ is 64/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shares Outstanding (Basic Average) calculated?
Shares Outstanding (Basic Average) is calculated from a company's financial statements. For Rio Tinto (BSP:RIOT34), the current Shares Outstanding (Basic Average) is 1,624 Mil 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 (BSP:RIOT34) Overvalued in 2026?
Based on GuruFocus' analysis, Rio Tinto stock appears to be overvalued.
The current stock price of R$494.00 is trading 37.7% above its estimated GF Value™ of R$358.67.
GuruFocus considers Rio Tinto to be Significantly Overvalued.
Key valuation signals for BSP:RIOT34:
Shares Outstanding (Basic Average): 1,624 Mil
GF Value™: R$358.67 vs. price of R$494.00 (37.7% above fair value)
No single metric tells the full story. See the BSP:RIOT34 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.
64GF Score
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Shares Outstanding (Basic Average) is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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