Historical Volatility (Parkinson) (30-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.
JPMorgan Nasdaq Equity Premium Yield ETF (ROCQ) had 30-Day Historical Volatility (Parkinson) of 0.2318 for 2026-05-11.
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