RIO TINTO PLC (RIO) Stock
RIO has an Alpha Score of 50 out of 100 (weak), computed on Nov 5, 2026 from 3 of 4 sub-scores. 15 members of Congress disclosed 34 trades in RIO since 2014: 19 purchases and 15 sales, most recently Alan Armstrong (purchase, Mar 30, 2026). 6 of the hedge funds AlphaScala tracks reported RIO in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is Renaissance Technologies's at $115.30M. Its trailing P/E ratio is 11.7 and its net margin 19.6% (key statistics as of Nov 3, 2026).
What is RIO's Alpha Score?
How it works →Alpha Score of 50 reflects weak overall profile with poor momentum, strong value, moderate quality. Based on 3 of 4 signals – score is capped at 90 until remaining data ingests.
Computed from 3 of 4 sub-scores; a sub-score is left out when its inputs are missing, and the composite is capped accordingly.
Computed Nov 5, 2026
A rules-based research rating, not a recommendation to buy or sell.
Which members of Congress traded RIO TINTO PLC (RIO)?
Most recent: Alan Armstrong (purchase, Mar 30, 2026); records start Sep 11, 2014.
| Politician | Trade date | Type | Amount |
|---|---|---|---|
| Alan Armstrong R-OK · Senate | 2026-03-30 | purchase | $15k – $50k |
| Lisa McClain R-MI · House | 2025-10-31 | sale | $1k – $15k |
| Lisa McClain R-MI · House | 2025-10-30 | sale | $1k – $15k |
| Lisa McClain R-MI · House | 2025-10-30 | purchase | $1k – $15k |
| Gil Cisneros D-CA · House | 2025-07-03 | sale | $1k – $15k |
| Lisa McClain R-MI · House | 2025-06-24 | purchase | $1k – $15k |
| Bruce Westerman R-AR · House | 2025-04-21 | sale | $1k – $15k |
| Josh Gottheimer D-NJ · House | 2025-04-09 | partial sale | $1k – $15k |
From STOCK Act periodic transaction reports. House filings as of Nov 5, 2026. Senate records here end Oct 21, 2026; later Senate trades are not included.
Every member of Congress who traded RIO, with filing lags →Which hedge funds own RIO?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| Renaissance Technologies Jim Simons (founder) | 1.21M | $115.30M | +26% |
| Millennium Management Israel Englander | 359K | $34.11M | +1757% |
| Citadel Ken Griffin | 120K | $11.41M | -53% |
| Bridgewater Associates Ray Dalio | 73K | $6.91M | -36% |
| D.E. Shaw David Shaw | 55K | $5.19M | +3% |
| Marshall Wace | 7K | $697.4K | -94% |
13F holdings as of Jun 30, 2026
Explore all tracked funds →What are RIO's key statistics?
Key statistics as of Nov 3, 2026
How does RIO's valuation compare with the Materials sector?
| Metric | RIO | Materials median | Companies in median |
|---|---|---|---|
| P/E ratio | 11.7 | 18.8 | 76 |
| Net margin | 19.58% | 9.19% | 85 |
| Return on equity | 18.96% | 13.06% | 89 |
| Dividend yield (payers) | 5.89% | 1.83% | 64 |
Medians over the Materials stocks whose key statistics were refreshed in the last 35 days (newest Nov 7, 2026). P/E excludes loss-making companies.
RIO price chart
Powered by TradingViewWhat does RIO TINTO PLC do?
Rio Tinto is a leading global mining and materials company that explores, mines, and processes mineral resources worldwide. Headquartered in London and Melbourne with operations across 34 countries and six continents, the company operates through four primary business segments: Iron Ore, Aluminium, Copper, and Minerals. The Iron Ore segment produces iron ore, salt, and gypsum primarily in Western Australia. The Aluminium segment encompasses bauxite mining, alumina refining, smelting, and recycling operations. The Copper segment mines and refines copper alongside by-products including gold, silver, and molybdenum, while conducting exploration activities. The Minerals segment mines and processes borates, titanium dioxide feedstock, and diamond resources, along with development projects for battery materials such as lithium. Rio Tinto owns and operates open pit and underground mines, refineries, smelters, processing plants, and power and shipping facilities globally. The company maintains a sponsored American Depositary Receipt (ADR) facility through JPMorgan Chase Bank NA, with an ADR ratio of one ADR per one Rio Tinto plc share. As a diversified miner with iron ore as its dominant commodity, Rio Tinto serves global demand for essential industrial metals and materials.