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.

Axcelis Technologies, Inc. (ACLS) had 30-Day Put-Call Ratio (Volume) of 0.1017 for 2025-11-20.

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Figures for 2025-11-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4350
Historical Volatility (Parkinson)	0.4766
Implied Volatility (Calls)	0.5122
Implied Volatility (Puts)	0.5036
Implied Volatility (Mean)	0.5079
Put-Call Implied Volatility Ratio	0.9832
Implied Volatility Skew	0.0094
Option Statistics
Put-Call Ratio (Volume)	0.1017
Put-Call Ratio (Open Interest)	1.1795