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.

Bio-Rad Laboratories, Inc. (BIO) 20-Day Put-Call Ratio (Volume) data is not available for 2026-10-19.

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Figures for 2026-10-19

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3963
Historical Volatility (Parkinson)	0.3795
Implied Volatility (Calls)	0.4896
Implied Volatility (Puts)	0.4767
Implied Volatility (Mean)	0.4832
Put-Call Implied Volatility Ratio	0.9736
Implied Volatility Skew	0.0508
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	10.0000