Rio Tinto (RIO) Shares Outstanding (Diluted) (2009 - 2025)
Rio Tinto's Shares Outstanding (Diluted) was 1.63 billion in Q4 2025, unchanged from 1.63 billion a year earlier.
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Analysis
Rio Tinto (RIO) Shares Outstanding (Diluted) (2009 - 2025) Analysis & Trends
From Q2 2009 onward, Rio Tinto has reported Shares Outstanding (Diluted) for 33 quarters.
- Shares Outstanding (Diluted) shows a five-year compound annual growth rate of 0.1% (FY2020 to FY2025).
- In earlier years, Shares Outstanding (Diluted) was 1.63 billion in FY2024 (+0.2%), 1.63 billion in FY2023 (unchanged), 1.63 billion in FY2022 (unchanged) and 1.63 billion in FY2021 (unchanged).
- Compared with a year earlier, Shares Outstanding (Diluted) was higher in two of the last four quarters, with growth averaging 0.1%.
- The best year-over-year quarter for Shares Outstanding (Diluted) over five years was Q2 2025 (growth of 0.2%); the worst was Q2 2021 (a decline of 0.8%).
Peer Set
Peer Comparison
| # | Company | Market Cap | Enterprise Value | Gross Profit (Qtr) | Shares Outstanding (Dil.) (Qtr) |
|---|---|---|---|---|---|
| 1 | Rio Tinto | 182.38 Bn | 151.41 Bn | - | 1.64 Bn |
| 2 | Southern Copper | 173.13 Bn | 151.92 Bn | 2.90 Bn | 829.10 Mn |
| 3 | Rio Tinto | 153.19 Bn | 113.69 Bn | - | 1.63 Bn |
| 4 | Newmont | 124.78 Bn | 92.78 Bn | 4.03 Bn | 1.07 Bn |
| 5 | Freeport-Mcmoran | 105.49 Bn | 89.53 Bn | 2.19 Bn | 1.44 Bn |
| 6 | Agnico Eagle Mines | 94.62 Bn | 84.25 Bn | 2.43 Bn | 503.43 Mn |
| 7 | Barrick Mining | 69.78 Bn | 44.98 Bn | 2.90 Bn | 1.71 Bn |
| 8 | Nucor | 57.52 Bn | 46.91 Bn | 2.03 Bn | 228.50 Mn |
| 9 | ArcelorMittal | 48.12 Bn | 27.14 Bn | - | 766.00 Mn |
| 10 | AngloGold Ashanti | 47.51 Bn | 35.39 Bn | 1.70 Bn | 509.09 Mn |
Historic Data
Download Data
Historic Data
| Date | Value |
|---|---|
| Dec 31, 2025 | 1.63 Bn |
| Jun 30, 2025 | 1.63 Bn |
| Dec 31, 2024 | 1.63 Bn |
| Jun 30, 2024 | 1.63 Bn |
| Dec 31, 2023 | 1.63 Bn |
| Jun 30, 2023 | 1.63 Bn |
| Dec 31, 2022 | 1.63 Bn |
| Jun 30, 2022 | 1.63 Bn |
| Dec 31, 2021 | 1.63 Bn |
| Jun 30, 2021 | 1.63 Bn |
| Dec 31, 2020 | 1.63 Bn |
| Jun 30, 2020 | 1.64 Bn |
| Dec 31, 2019 | 1.64 Bn |
| Jun 30, 2019 | 1.73 Bn |
| Dec 31, 2018 | 1.73 Bn |
| Jun 30, 2018 | 1.80 Bn |
| Dec 31, 2017 | 1.80 Bn |
| Jun 30, 2017 | 1.81 Bn |
| Dec 31, 2016 | 1.81 Bn |
| Jun 30, 2016 | 1.82 Bn |
API Access
Rio Tinto Shares Outstanding (Diluted) API
Pull this series into your own models, spreadsheets and apps with the Business Quant
Historical Metrics API. The request below matches the chart above — change the
frequency, period or values and it follows. Swap YOUR_API_KEY for your own key.
https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=RIO&period=max&api_key=YOUR_API_KEYimport requests
url = "https://data.businessquant.com/historic"
params = {"slug": "shares-outstanding-diluted", "ticker": "RIO", "period": "max", "api_key": "YOUR_API_KEY"}
data = requests.get(url, params=params).json()const res = await fetch("https://data.businessquant.com/historic?slug=shares-outstanding-diluted&ticker=RIO&period=max&api_key=YOUR_API_KEY");
const data = await res.json();