State Street SPDR S&P Biotech ETF (XBI)

Last Closing Price: 154.50 (2026-07-21)

Implied Volatility Skew (60-Day)

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

State Street SPDR S&P Biotech ETF (XBI) had 60-Day Implied Volatility Skew of -0.0015 for 2026-07-21.