Put-Call Ratio (Volume) (120-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Aon plc (AON) had 120-Day Put-Call Ratio (Volume) of 0.0352 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2792
Historical Volatility (Parkinson)	0.2493
Implied Volatility (Calls)	0.2905
Implied Volatility (Puts)	0.2879
Implied Volatility (Mean)	0.2892
Put-Call Implied Volatility Ratio	0.9911
Implied Volatility Skew	0.0234
Option Statistics
Put-Call Ratio (Volume)	0.0352
Put-Call Ratio (Open Interest)	0.6616