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.

ACM Research, Inc. (ACMR) had 30-Day Put-Call Ratio (Volume) of 0.6660 for 2025-12-04.

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Figures for 2025-12-04

Volatility Metrics
Historical Volatility (Close-to-Close)	0.9256
Historical Volatility (Parkinson)	0.5689
Implied Volatility (Calls)	0.6864
Implied Volatility (Puts)	0.6255
Implied Volatility (Mean)	0.6559
Put-Call Implied Volatility Ratio	0.9114
Implied Volatility Skew	-0.0023
Option Statistics
Put-Call Ratio (Volume)	0.6660
Put-Call Ratio (Open Interest)	0.8125