Rio Tinto plc ADR (RIO) Historical Volatility

Tracking RIO historical volatility helps you see how much Rio Tinto plc ADR's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, Rio Tinto plc ADR's HV tells you what really happened. Use our scanner to monitor RIO 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The RIO 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Rio Tinto plc ADR's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.

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; alumina refining; and aluminium smelting. 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. Rio Tinto Group was founded in 1873 and is headquartered in London, the United Kingdom.

Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts Rio Tinto plc ADR's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where RIO HV is running hot, cold, or in line. Make the RIO 30 day historical volatility — and every other window — work for your edge instead of against it.