Put-Call Ratio (Volume) (20-Day)

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

Genuine Parts Company (GPC) had 20-Day Put-Call Ratio (Volume) of 0.0065 for 2026-05-21.

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Figures for 2026-05-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.3222
Historical Volatility (Parkinson)	0.3032
Implied Volatility (Calls)	0.3359
Implied Volatility (Puts)	0.3329
Implied Volatility (Mean)	0.3344
Put-Call Implied Volatility Ratio	0.9909
Implied Volatility Skew	-0.0012
Option Statistics
Put-Call Ratio (Volume)	0.0065
Put-Call Ratio (Open Interest)	0.4019