Put-Call Ratio (Volume) (180-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 180-Day Put-Call Ratio (Volume) of 0.0000 for 2025-05-29.

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Figures for 2025-05-29

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2723
Historical Volatility (Parkinson)	0.2381
Implied Volatility (Calls)	0.2517
Implied Volatility (Puts)	0.2581
Implied Volatility (Mean)	0.2549
Put-Call Implied Volatility Ratio	1.0254
Implied Volatility Skew	0.0562
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	2.3485