Put-Call Ratio (Volume) (60-Day)

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

United Microelectronics Corporation (UMC) had 60-Day Put-Call Ratio (Volume) of 3.5935 for 2026-07-20.

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Figures for 2026-07-20

Volatility Metrics
Historical Volatility (Close-to-Close)	0.9482
Historical Volatility (Parkinson)	0.5104
Implied Volatility (Calls)	0.9523
Implied Volatility (Puts)	0.9448
Implied Volatility (Mean)	0.9485
Put-Call Implied Volatility Ratio	0.9921
Implied Volatility Skew	0.0254
Option Statistics
Put-Call Ratio (Volume)	3.5935
Put-Call Ratio (Open Interest)	2.3000