Put-Call Ratio (Open Interest) (120-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.

United Microelectronics Corporation (UMC) had 120-Day Put-Call Ratio (Open Interest) of 0.4827 for 2026-03-05.

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Figures for 2026-03-05

Volatility Metrics
Historical Volatility (Close-to-Close)	0.5430
Historical Volatility (Parkinson)	0.2377
Implied Volatility (Calls)	0.4390
Implied Volatility (Puts)	0.5882
Implied Volatility (Mean)	0.5136
Put-Call Implied Volatility Ratio	1.3396
Implied Volatility Skew	0.0483
Option Statistics
Put-Call Ratio (Volume)	2.4000
Put-Call Ratio (Open Interest)	0.4827