Put-Call Ratio (Volume) (180-Day)

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

Annexon, Inc. (ANNX) had 180-Day Put-Call Ratio (Volume) of 0.0000 for 2026-04-21.

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Figures for 2026-04-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.8233
Historical Volatility (Parkinson)	0.7501
Implied Volatility (Calls)	1.4931
Implied Volatility (Puts)	1.5654
Implied Volatility (Mean)	1.5292
Put-Call Implied Volatility Ratio	1.0484
Implied Volatility Skew	0.2509
Option Statistics
Put-Call Ratio (Volume)	0.0000
Put-Call Ratio (Open Interest)	0.0267