Prothena Corporation plc (PRTA)

Last Closing Price: 8.67 (2026-07-20)

Implied Volatility Skew (120-Day)

Implied Volatility Skew: A measurement that quantifies the difference in implied volatility of options at lower and higher strike prices.

Prothena Corporation plc (PRTA) had 120-Day Implied Volatility Skew of -0.0954 for 2026-07-20.