Biogen Inc. (BIIB)

Last Closing Price: 143.81 (2025-09-18)

Implied Volatility (Puts) (90-Day)

Implied Volatility (Puts): The forecasted future volatility of the security over the selected time frame, derived from the pricing of the at-the-money put options with the relevant expiration date.

Biogen Inc. (BIIB) had 90-Day Implied Volatility (Puts) of 0.3850 for 2025-09-18.