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.

Ionis Pharmaceuticals, Inc. (IONS) had 30-Day Put-Call Ratio (Volume) of 2.5869 for 2026-01-16.

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Figures for 2026-01-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.2788
Historical Volatility (Parkinson)	0.3223
Implied Volatility (Calls)	0.4399
Implied Volatility (Puts)	0.4492
Implied Volatility (Mean)	0.4445
Put-Call Implied Volatility Ratio	1.0212
Implied Volatility Skew	0.0874
Option Statistics
Put-Call Ratio (Volume)	2.5869
Put-Call Ratio (Open Interest)	1.7091