Historical Volatility (Parkinson) (120-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 120-Day Historical Volatility (Parkinson) of 0.2305 for 2026-07-15.

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Figures for 2026-07-15

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2849
Historical Volatility (Parkinson)	0.2305
Implied Volatility (Calls)	0.2697
Implied Volatility (Puts)	0.2713
Implied Volatility (Mean)	0.2705
Put-Call Implied Volatility Ratio	1.0061
Implied Volatility Skew	0.0462
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.9506