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.

ProShares S&P 500 Ex-Energy ETF (SPXE) had 30-Day Historical Volatility (Parkinson) of 0.0457 for 2025-08-28.

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Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2025-08-28

Volatility Metrics
Historical Volatility (Close-to-Close)	0.1133
Historical Volatility (Parkinson)	0.0457
Implied Volatility (Calls)	0.1271
Implied Volatility (Puts)	0.1506
Implied Volatility (Mean)	0.1389
Put-Call Implied Volatility Ratio	1.1850
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	--
Put-Call Ratio (Open Interest)	--