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.

Cabaletta Bio, Inc. (CABA) had 30-Day Put-Call Ratio (Volume) of 0.0098 for 2026-10-19.

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Figures for 2026-10-19

Volatility Metrics
Historical Volatility (Close-to-Close)	0.6829
Historical Volatility (Parkinson)	0.8148
Implied Volatility (Calls)	1.0838
Implied Volatility (Puts)	1.5979
Implied Volatility (Mean)	1.3408
Put-Call Implied Volatility Ratio	1.4745
Implied Volatility Skew	0.9688
Option Statistics
Put-Call Ratio (Volume)	0.0098
Put-Call Ratio (Open Interest)	0.1050