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.

iShares Biotechnology ETF (IBB) had 30-Day Put-Call Ratio (Volume) of 0.5996 for 2025-11-25.

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Figures for 2025-11-25

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1691
Historical Volatility (Parkinson)	0.1952
Implied Volatility (Calls)	0.2376
Implied Volatility (Puts)	0.2542
Implied Volatility (Mean)	0.2459
Put-Call Implied Volatility Ratio	1.0698
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.5996
Put-Call Ratio (Open Interest)	1.1361