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.

Bio-Rad Laboratories, Inc. (BIO) 30-Day Put-Call Ratio (Volume) data is not available for 2026-07-17.

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Figures for 2026-07-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3804
Historical Volatility (Parkinson)	0.3230
Implied Volatility (Calls)	0.5338
Implied Volatility (Puts)	0.4612
Implied Volatility (Mean)	0.4975
Put-Call Implied Volatility Ratio	0.8640
Implied Volatility Skew	0.0711
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0078