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.

State Street SPDR Russell 1000 Low Volatility Focus ETF (ONEV) had 180-Day Historical Volatility (Parkinson) of 0.0735 for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1111
Historical Volatility (Parkinson)	0.0735
Implied Volatility (Calls)	0.1388
Implied Volatility (Puts)	0.1392
Implied Volatility (Mean)	0.1390
Put-Call Implied Volatility Ratio	1.0028
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	--