Historical Volatility (Parkinson) (180-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.
Pacer Swan SOS Flex (October) ETF (PSFO) had 180-Day Historical Volatility (Parkinson) of 0.0383 for 2026-01-20.
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