Historical Volatility (Parkinson) (150-Day)
Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.
MFS Active Intermediate Muni Bond ETF (MFSM) had 150-Day Historical Volatility (Parkinson) of 0.0442 for 2025-07-03.
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