Historical Volatility (Parkinson) (60-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.

CrowdStrike (CRWD) had 60-Day Historical Volatility (Parkinson) of 0.4549 for 2025-06-06.

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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 2025-06-06

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5510
Historical Volatility (Parkinson)	0.4549
Implied Volatility (Calls)	0.3785
Implied Volatility (Puts)	0.3799
Implied Volatility (Mean)	0.3792
Put-Call Implied Volatility Ratio	1.0037
Implied Volatility Skew	0.0198
Option Statistics
Put-Call Ratio (Volume)	1.0123
Put-Call Ratio (Open Interest)	0.6992