Put-Call Ratio (Open Interest) (120-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

BioLife Solutions, Inc. (BLFS) had 120-Day Put-Call Ratio (Open Interest) of 0.0279 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3727
Historical Volatility (Parkinson)	0.3931
Implied Volatility (Calls)	0.5812
Implied Volatility (Puts)	0.5958
Implied Volatility (Mean)	0.5885
Put-Call Implied Volatility Ratio	1.0251
Implied Volatility Skew	0.1024
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0279