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.

Amkor Technology, Inc. (AMKR) had 30-Day Put-Call Ratio (Volume) of 4.1321 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.9293
Historical Volatility (Parkinson)	0.7307
Implied Volatility (Calls)	1.1045
Implied Volatility (Puts)	1.0922
Implied Volatility (Mean)	1.0983
Put-Call Implied Volatility Ratio	0.9889
Implied Volatility Skew	0.0040
Option Statistics
Put-Call Ratio (Volume)	4.1321
Put-Call Ratio (Open Interest)	1.2661