Protagonist Therapeutics, Inc. (PTGX)

Last Closing Price: 105.89 (2026-04-21)

Implied Volatility (Puts) (180-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.

Protagonist Therapeutics, Inc. (PTGX) had 180-Day Implied Volatility (Puts) of 0.5355 for 2026-04-21.