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Daily valuation snapshot
Rio Tinto plc: source evidence dated 2026-10-09.
- Daily close (USD)
- $94.78
- Market capitalization (USD)
- $119,044,657,560.92
- Price / earnings (TTM)
- 11.62
- Price / book
- 1.78
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Company overview
Rio Tinto Group engages in exploring, mining, and processing mineral resources worldwide. The company operates through Iron Ore, Aluminium, Copper, and Minerals Segments. The Iron Ore segment engages in the iron ore mining, and salt and gypsum production in Western Australia. The Aluminum segment is involved in bauxite mining; and alumina refining, smelting, and recycling. The Copper segment engages in mining and refining of copper, gold, silver, molybdenum, and other by-products and exploration activities. The Minerals segment is involved in mining and processing of borates, titanium dioxide feedstock, and iron concentrate and pellets; diamond mining, sorting, and marketing; and development projects for battery materials, such as lithium. 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.
Daily valuation snapshot
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These values come from the daily market snapshot dated 2026-10-09. TTM means trailing twelve months. Use the market date when comparing RIO with another company.
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| Daily close (USD) | $94.78 |
| Market capitalization (USD) | $119,044,657,560.92 |
| Price / earnings (TTM) | 11.62 |
| Price / book | 1.78 |
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Read RIO's valuation metrics
Company size
Rio Tinto plc's recorded market capitalization is $119,044,657,560.92. It measures the market value of the company's equity, rather than its revenue or cash balance.
Price relative to earnings
RIO's recorded P/E is 11.62: about $11.62 of share price for each $1 of trailing annual earnings per share. Compare that multiple with earnings growth and companies in the same business.
Price relative to book equity
RIO's recorded price-to-book ratio is 1.78. That compares its market equity value with recorded book equity. Examine its business and balance sheet to understand why those values differ.
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