Historical Volatility (Parkinson) (90-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.

AAON, Inc. (AAON) had 90-Day Historical Volatility (Parkinson) of 0.4955 for 2026-04-14.

For much more extensive volatility insights, check out our new product VolVue:

Over 300 data fields encompassing historical volatility, implied volatility, and put-call ratios for multiple time frames
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Figures for 2026-04-14

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4833
Historical Volatility (Parkinson)	0.4955
Implied Volatility (Calls)	0.5935
Implied Volatility (Puts)	0.5920
Implied Volatility (Mean)	0.5927
Put-Call Implied Volatility Ratio	0.9975
Implied Volatility Skew	0.0227
Option Statistics
Put-Call Ratio (Volume)	0.0071
Put-Call Ratio (Open Interest)	0.5858