Biogen Inc. (BIIB)

Last Closing Price: 130.07 (2025-07-01)

Put-Call Ratio (Open Interest) (180-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.

Biogen Inc. (BIIB) had 180-Day Put-Call Ratio (Open Interest) of 0.5774 for 2025-06-30.