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.

Alumis Inc. (ALMS) had 20-Day Put-Call Ratio (Volume) of 8.1220 for 2026-06-04.

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Figures for 2026-06-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5135
Historical Volatility (Parkinson)	0.5722
Implied Volatility (Calls)	1.3982
Implied Volatility (Puts)	1.5528
Implied Volatility (Mean)	1.4755
Put-Call Implied Volatility Ratio	1.1105
Implied Volatility Skew	-0.2116
Option Statistics
Put-Call Ratio (Volume)	8.1220
Put-Call Ratio (Open Interest)	1.1841