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.

HDFC Bank Limited (HDB) had 30-Day Put-Call Ratio (Volume) of 0.1141 for 2025-05-30.

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Figures for 2025-05-30

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2476
Historical Volatility (Parkinson)	0.1560
Implied Volatility (Calls)	0.1892
Implied Volatility (Puts)	0.2017
Implied Volatility (Mean)	0.1955
Put-Call Implied Volatility Ratio	1.0660
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.1141
Put-Call Ratio (Open Interest)	0.6024