Put-Call Ratio (Volume) (60-Day)

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

Ionis Pharmaceuticals, Inc. (IONS) had 60-Day Put-Call Ratio (Volume) of 1.1385 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2837
Historical Volatility (Parkinson)	0.3074
Implied Volatility (Calls)	0.5150
Implied Volatility (Puts)	0.5112
Implied Volatility (Mean)	0.5131
Put-Call Implied Volatility Ratio	0.9925
Implied Volatility Skew	0.0578
Option Statistics
Put-Call Ratio (Volume)	1.1385
Put-Call Ratio (Open Interest)	3.3481