Put-Call Ratio (Volume) (30-Day)

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

Biogen Inc. (BIIB) had 30-Day Put-Call Ratio (Volume) of 0.2404 for 2025-07-11.

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Figures for 2025-07-11

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2778
Historical Volatility (Parkinson)	0.2966
Implied Volatility (Calls)	0.3911
Implied Volatility (Puts)	0.3718
Implied Volatility (Mean)	0.3815
Put-Call Implied Volatility Ratio	0.9507
Implied Volatility Skew	0.0483
Option Statistics
Put-Call Ratio (Volume)	0.2404
Put-Call Ratio (Open Interest)	0.7667