Put-Call Ratio (Open Interest) (20-Day)

Put-Call Ratio (Open Interest): The ratio of outstanding put contracts to outstanding call contracts at the close of the trading day, for options with the relevant expiration date.

ASE Technology Holding Co., Ltd. (ASX) had 20-Day Put-Call Ratio (Open Interest) of 0.7057 for 2025-09-17.

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Figures for 2025-09-17

Volatility Metrics
Historical Volatility (Close-to-Close)	0.4779
Historical Volatility (Parkinson)	0.1556
Implied Volatility (Calls)	0.6071
Implied Volatility (Puts)	1.0180
Implied Volatility (Mean)	0.8125
Put-Call Implied Volatility Ratio	1.6768
Implied Volatility Skew	-0.2284
Option Statistics
Put-Call Ratio (Volume)	0.0155
Put-Call Ratio (Open Interest)	0.7057