Biogen Inc. (BIIB)

Last Closing Price: 132.87 (2025-07-03)

Put-Call Ratio (Open Interest) (30-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 30-Day Put-Call Ratio (Open Interest) of 1.2909 for 2025-07-03.