Put-Call Ratio (Volume) (180-Day)

Put-Call Ratio (Volume): The ratio of puts traded to calls traded, for options with the relevant expiration date.

Amkor Technology, Inc. (AMKR) had 180-Day Put-Call Ratio (Volume) of 0.1517 for 2026-07-21.

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Figures for 2026-07-21

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7847
Historical Volatility (Parkinson)	0.6701
Implied Volatility (Calls)	0.9779
Implied Volatility (Puts)	0.9406
Implied Volatility (Mean)	0.9593
Put-Call Implied Volatility Ratio	0.9619
Implied Volatility Skew	0.0176
Option Statistics
Put-Call Ratio (Volume)	0.1517
Put-Call Ratio (Open Interest)	0.2655