Prothena Corporation plc (PRTA)

Last Closing Price: 9.25 (2026-01-20)

Implied Volatility Skew (150-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 150-Day Implied Volatility Skew of 0.1262 for 2026-01-16.