State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB)

Last Closing Price: 22.14 (2026-07-17)

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 Portfolio Mortgage Backed Bond ETF (SPMB) had 60-Day Implied Volatility Skew of 0.0701 for 2026-07-17.