Put-Call Ratio (Volume) (30-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 30-Day Put-Call Ratio (Volume) of 0.3148 for 2026-05-28.

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Figures for 2026-05-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4007
Historical Volatility (Parkinson)	0.1947
Implied Volatility (Calls)	0.3571
Implied Volatility (Puts)	0.3491
Implied Volatility (Mean)	0.3531
Put-Call Implied Volatility Ratio	0.9778
Implied Volatility Skew	0.0916
Option Statistics
Put-Call Ratio (Volume)	0.3148
Put-Call Ratio (Open Interest)	1.3267