Put-Call Ratio (Volume) (180-Day)

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

Biogen Inc. (BIIB) had 180-Day Put-Call Ratio (Volume) of 0.9194 for 2025-10-24.

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Figures for 2025-10-24

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3278
Historical Volatility (Parkinson)	0.2979
Implied Volatility (Calls)	0.4021
Implied Volatility (Puts)	0.4000
Implied Volatility (Mean)	0.4011
Put-Call Implied Volatility Ratio	0.9947
Implied Volatility Skew	0.0232
Option Statistics
Put-Call Ratio (Volume)	0.9194
Put-Call Ratio (Open Interest)	0.4524