Put-Call Ratio (Volume) (20-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 20-Day Put-Call Ratio (Volume) of 0.7963 for 2026-07-06.

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Figures for 2026-07-06

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1540
Historical Volatility (Parkinson)	0.2061
Implied Volatility (Calls)	0.2368
Implied Volatility (Puts)	0.2421
Implied Volatility (Mean)	0.2394
Put-Call Implied Volatility Ratio	1.0224
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.7963
Put-Call Ratio (Open Interest)	0.7113