Put-Call Ratio (Volume) (150-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Rio Tinto PLC (RIO) had 150-Day Put-Call Ratio (Volume) of 0.5062 for 2026-08-27.

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Figures for 2026-08-27

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3331
Historical Volatility (Parkinson)	0.1813
Implied Volatility (Calls)	0.3337
Implied Volatility (Puts)	0.3126
Implied Volatility (Mean)	0.3231
Put-Call Implied Volatility Ratio	0.9368
Implied Volatility Skew	0.0356
Option Statistics
Put-Call Ratio (Volume)	0.5062
Put-Call Ratio (Open Interest)	0.5713