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.

ProShares Russell 2000 Dynamic Buffer ETF (RB) had 150-Day Historical Volatility (Parkinson) of 0.0159 for 2026-01-07.

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Figures for 2026-01-07

Volatility Metrics
Historical Volatility (Close-to-Close)	0.0712
Historical Volatility (Parkinson)	0.0159
Implied Volatility (Calls)	--
Implied Volatility (Puts)	--
Implied Volatility (Mean)	--
Put-Call Implied Volatility Ratio	--
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	--