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.

Halozyme Therapeutics, Inc. (HALO) had 20-Day Put-Call Ratio (Volume) of 3.4314 for 2026-02-20.

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Figures for 2026-02-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5505
Historical Volatility (Parkinson)	0.3871
Implied Volatility (Calls)	0.3825
Implied Volatility (Puts)	0.3363
Implied Volatility (Mean)	0.3594
Put-Call Implied Volatility Ratio	0.8793
Implied Volatility Skew	0.0262
Option Statistics
Put-Call Ratio (Volume)	3.4314
Put-Call Ratio (Open Interest)	0.2878