Put-Call Ratio (Volume) (90-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 90-Day Put-Call Ratio (Volume) of 0.4479 for 2026-04-20.

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Figures for 2026-04-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.7520
Historical Volatility (Parkinson)	0.6273
Implied Volatility (Calls)	0.7957
Implied Volatility (Puts)	0.7948
Implied Volatility (Mean)	0.7952
Put-Call Implied Volatility Ratio	0.9988
Implied Volatility Skew	0.0095
Option Statistics
Put-Call Ratio (Volume)	0.4479
Put-Call Ratio (Open Interest)	0.5200