Put-Call Ratio (Open Interest) (180-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

Rio Tinto PLC (RIO) had 180-Day Put-Call Ratio (Open Interest) of 0.6464 for 2025-10-10.

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Figures for 2025-10-10

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2248
Historical Volatility (Parkinson)	0.1427
Implied Volatility (Calls)	0.2827
Implied Volatility (Puts)	0.2138
Implied Volatility (Mean)	0.2483
Put-Call Implied Volatility Ratio	0.7563
Implied Volatility Skew	0.0703
Option Statistics
Put-Call Ratio (Volume)	0.5892
Put-Call Ratio (Open Interest)	0.6464