Historical Volatility (Parkinson) (20-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.

Fabrinet (FN) had 20-Day Historical Volatility (Parkinson) of 0.7104 for 2026-08-19.

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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 2026-08-19

Volatility Metrics
Historical Volatility (Close-to-Close)	1.3363
Historical Volatility (Parkinson)	0.7104
Implied Volatility (Calls)	0.6943
Implied Volatility (Puts)	0.6787
Implied Volatility (Mean)	0.6865
Put-Call Implied Volatility Ratio	0.9776
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.9952
Put-Call Ratio (Open Interest)	1.1828