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.

Axcelis Technologies, Inc. (ACLS) had 20-Day Put-Call Ratio (Volume) of 0.7632 for 2025-05-22.

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Figures for 2025-05-22

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5363
Historical Volatility (Parkinson)	0.4768
Implied Volatility (Calls)	0.5045
Implied Volatility (Puts)	0.5000
Implied Volatility (Mean)	0.5023
Put-Call Implied Volatility Ratio	0.9909
Implied Volatility Skew	0.0494
Option Statistics
Put-Call Ratio (Volume)	0.7632
Put-Call Ratio (Open Interest)	0.4100