Historical Volatility (Parkinson) (20-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.
Fidelity MSCI Consumer Staples Index ETF (FSTA) had 20-Day Historical Volatility (Parkinson) of 0.1059 for 2026-01-16.
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