Put-Call Ratio (Volume) (120-Day)

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

Alto Neuroscience, Inc. (ANRO) had 120-Day Put-Call Ratio (Volume) of 2.5000 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7422
Historical Volatility (Parkinson)	0.7855
Implied Volatility (Calls)	0.8961
Implied Volatility (Puts)	0.8843
Implied Volatility (Mean)	0.8902
Put-Call Implied Volatility Ratio	0.9868
Implied Volatility Skew	0.0737
Option Statistics
Put-Call Ratio (Volume)	2.5000
Put-Call Ratio (Open Interest)	0.1819