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.

WPP PLC (WPP) had 20-Day Historical Volatility (Parkinson) of 0.3162 for 2026-01-20.

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Figures for 2026-01-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4586
Historical Volatility (Parkinson)	0.3162
Implied Volatility (Calls)	0.5728
Implied Volatility (Puts)	0.5890
Implied Volatility (Mean)	0.5809
Put-Call Implied Volatility Ratio	1.0284
Implied Volatility Skew	-0.0856
Option Statistics
Put-Call Ratio (Volume)	0.1364
Put-Call Ratio (Open Interest)	0.5984