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Large Increase in Open Interest

UMC United Microelectronics (New)20.44-0.96 (-4.5%)

The open interest (OI) on the 20-Nov-26 26.00 strike increased by 26,872 call contracts and was unchanged for puts. The total OI for the expiration was increased by 4x the average option volume. View Open Interest
Unusual Option Volume

UMC United Microelectronics (New)21.81-0.58 (-2.6%)

United Microelectronics (New) trades 11,326 contracts. UMC will report earnings on Oct 28, 2026.
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Large Increase in Open Interest

UMC United Microelectronics (New)23.08-0.23 (-1.0%)

The open interest (OI) on the 21-Jan-28 30.00 strike increased by 9,660 call contracts and 9,090 puts. The total OI for the expiration was increased by 18,797. View Open Interest
Unusual Option Volume

UMC United Microelectronics (New)23.31+0.12 (+0.5%)

United Microelectronics (New) trades 23,559 contracts. UMC will report earnings on Oct 28, 2026. News: UMC Reports Sales for September 2026
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Large Increase in Open Interest

UMC United Microelectronics (New)23.27+0.08 (+0.3%)

The open interest (OI) on the 21-Jan-28 30.00 strike increased by 12,244 call contracts and was unchanged for puts. The total OI for the expiration was increased by 17,296. View Open Interest
Unusual Option Volume

UMC United Microelectronics (New)23.34-0.58 (-2.4%)

United Microelectronics (New) trades 21,250 contracts. UMC will report earnings on Oct 28, 2026. News: UMC Reports Sales for September 2026
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