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.

Guardant Health, Inc. (GH) had 20-Day Put-Call Ratio (Volume) of 0.5500 for 2026-10-20.

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Figures for 2026-10-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5565
Historical Volatility (Parkinson)	0.5443
Implied Volatility (Calls)	0.7328
Implied Volatility (Puts)	0.7011
Implied Volatility (Mean)	0.7169
Put-Call Implied Volatility Ratio	0.9568
Implied Volatility Skew	0.0253
Option Statistics
Put-Call Ratio (Volume)	0.5500
Put-Call Ratio (Open Interest)	3.6125