Historical Volatility (Parkinson) (180-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.

Marsh (MRSH) had 180-Day Historical Volatility (Parkinson) of 0.2186 for 2026-05-29.

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Figures for 2026-05-29

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2605
Historical Volatility (Parkinson)	0.2186
Implied Volatility (Calls)	0.2769
Implied Volatility (Puts)	0.2752
Implied Volatility (Mean)	0.2760
Put-Call Implied Volatility Ratio	0.9936
Implied Volatility Skew	0.0362
Option Statistics
Put-Call Ratio (Volume)	0.0525
Put-Call Ratio (Open Interest)	1.6100