Spero Therapeutics, Inc. (SPRO)

Last Closing Price: 2.41 (2026-01-16)

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.

Spero Therapeutics, Inc. (SPRO) had 150-Day Implied Volatility Skew of -0.2194 for 2026-01-16.