Protagonist Therapeutics, Inc. (PTGX)

Last Closing Price: 83.42 (2026-01-20)

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.

Protagonist Therapeutics, Inc. (PTGX) had 120-Day Implied Volatility Skew of 0.0455 for 2026-01-20.