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 0.7180 for 2026-10-16.

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Figures for 2026-10-16

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7592
Historical Volatility (Parkinson)	0.5850
Implied Volatility (Calls)	0.9227
Implied Volatility (Puts)	0.8783
Implied Volatility (Mean)	0.9005
Put-Call Implied Volatility Ratio	0.9519
Implied Volatility Skew	0.0100
Option Statistics
Put-Call Ratio (Volume)	0.7180
Put-Call Ratio (Open Interest)	0.9437