Put-Call Ratio (Volume) (30-Day)

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

Northrop Grumman Corporation (NOC) had 30-Day Put-Call Ratio (Volume) of 0.6875 for 2026-07-31.

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Figures for 2026-07-31

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3012
Historical Volatility (Parkinson)	0.2890
Implied Volatility (Calls)	0.3032
Implied Volatility (Puts)	0.2769
Implied Volatility (Mean)	0.2901
Put-Call Implied Volatility Ratio	0.9130
Implied Volatility Skew	0.1005
Option Statistics
Put-Call Ratio (Volume)	0.6875
Put-Call Ratio (Open Interest)	1.1076