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.

ALX Oncology Holdings Inc. (ALXO) had 30-Day Put-Call Ratio (Volume) of 0.0455 for 2025-10-20.

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Figures for 2025-10-20

Volatility Metrics
Historical Volatility (Close-to-Close)	1.5306
Historical Volatility (Parkinson)	1.1935
Implied Volatility (Calls)	2.5593
Implied Volatility (Puts)	1.5592
Implied Volatility (Mean)	2.0592
Put-Call Implied Volatility Ratio	0.6092
Implied Volatility Skew	--
Option Statistics
Put-Call Ratio (Volume)	0.0455
Put-Call Ratio (Open Interest)	0.0803