Put-Call Ratio (Volume) (120-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Cerus Corporation (CERS) 120-Day Put-Call Ratio (Volume) data is not available for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7653
Historical Volatility (Parkinson)	0.6943
Implied Volatility (Calls)	1.0556
Implied Volatility (Puts)	1.5041
Implied Volatility (Mean)	1.2798
Put-Call Implied Volatility Ratio	1.4249
Implied Volatility Skew	0.3932
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	0.0052