Put-Call Ratio (Volume) (90-Day)

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

Biogen Inc. (BIIB) had 90-Day Put-Call Ratio (Volume) of 0.7848 for 2026-03-13.

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Figures for 2026-03-13

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3563
Historical Volatility (Parkinson)	0.3090
Implied Volatility (Calls)	0.4157
Implied Volatility (Puts)	0.3684
Implied Volatility (Mean)	0.3920
Put-Call Implied Volatility Ratio	0.8862
Implied Volatility Skew	0.0277
Option Statistics
Put-Call Ratio (Volume)	0.7848
Put-Call Ratio (Open Interest)	0.7010