Implied Volatility (Puts) (120-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 120-Day Implied Volatility (Puts) of 0.3741 for 2022-11-25.