Rio Tinto Group engages in exploring, mining, and processing mineral resources worldwide. The company operates through Iron Ore; Aluminium and lithium; and Copper segments. The Iron Ore segment engages in the iron ore mining, and salt and gypsum production in Western Australia. The Aluminum and lithium segment is involved in bauxite mining; alumina refining; and aluminium smelting, and recycling, as well as mining and processing of lithium. The Copper segment engages in mining and refining of copper, gold, silver, molybdenum, and other by-products and exploration activities. It also owns and operates open pit and underground mines; and refineries, smelters, processing plants and power, and shipping facilities. The company was founded in 1873 and is headquartered in London, the United Kingdom.
Fundamentals
Historical Data63 days
| Date | Short % | Gross Short |
|---|---|---|
| 16 July | — | — |
| 15 July | — | — |
| 14 July | — | — |
| 13 July | 9.14% | — |
| 10 July | 9.16% | — |
| 9 July | 9.10% | — |
| 8 July | 9.10% | — |
| 7 July | 9.06% | — |
| 6 July | 9.01% | — |
| 3 July | 8.97% | — |
| 2 July | 9.13% | — |
| 1 July | 8.90% | — |
Rio Tinto Limited (RIO) Short Interest Summary
Rio Tinto Limited (RIO) currently has 9.14% of its shares sold short (34.0 million shares, worth approximately $5.6 billion), based on ASIC short position data reported on 13 July 2026 (T+4 reporting lag). That makes RIO the #20 most shorted stock on the ASX most shorted list. Short interest in RIO is up 0.13% over the past week and up 0.15% over the past month. RIO is part of the Materials sector on the ASX.
Recent RIO Short Position History
| Date | Short % | Short Shares | Close Price |
|---|---|---|---|
| 13 July 2026 | 9.14% | 34.0M | $164.03 |
| 10 July 2026 | 9.16% | 34.0M | $164.49 |
| 9 July 2026 | 9.10% | 33.8M | $158.52 |
| 8 July 2026 | 9.10% | 33.9M | $163.85 |
| 7 July 2026 | 9.06% | 33.7M | $168.14 |
| 6 July 2026 | 9.01% | 33.5M | $171.17 |
| 3 July 2026 | 8.97% | 33.4M | $171.16 |
| 2 July 2026 | 9.13% | 33.9M | $171.27 |
| 1 July 2026 | 8.90% | 33.1M | $170.81 |
| 30 June 2026 | 8.99% | 33.4M | $172.51 |
RIO Short Selling — Frequently Asked Questions
What is Rio Tinto Limited (RIO)'s current short interest?
Rio Tinto Limited (RIO) currently has a short interest of 9.14% of total shares outstanding. This means 9.14% of RIO's shares have been sold short by investors who expect the price to decline. This data is sourced from ASIC reports and updated daily.
Is RIO heavily shorted on the ASX?
RIO has a moderate level of short interest at 9.14%. While below the heavily shorted threshold of 10%, this indicates notable bearish positioning. RIO is currently ranked #20 among the most shorted stocks on the ASX.
What does short interest mean for RIO investors?
Short interest in RIO shows the percentage of shares investors have borrowed and sold, betting the price will fall. At 9.14%, RIO's short interest is at a moderate level. See our short squeeze candidates and days to cover analysis for more context.
Where does this RIO short data come from?
Short position data is published by ASIC with a four trading day delay (T+4) and covers reported short positions as a percentage of total shares on issue. ASX Short Data also tracks daily gross short sales (T+1), securities lending, and director trades for RIO.