On June 1, United Microelectronics rose 5.95% in pre-market trading, trading at $23.0/share, with trading volume of approximately $96,700.

On the news front, the global wafer foundry pricing upcycle is accelerating. Following TSMC's announcement of up to 15% price hikes on 3nm nodes, UMC confirmed plans to implement selective price increases of approximately 10% in the second half of the year, with broader pricing negotiations planned for 2027. At the company's recent annual shareholders meeting, CFO Liu Chi-Tung cited elevated costs from its Singapore fab expansion as a key driver behind the pricing adjustments.

Simultaneously, UMC's Q1 results continue to underpin bullish sentiment. Net profit surged 108% year-over-year to NT$16.17 billion, significantly exceeding market expectations. Gross margin reached 29.2% with capacity utilization climbing to 79%. Average selling prices rose 8% YoY in Q1, with Q2 ASPs expected to increase a further 5% to 7%, potentially lifting gross margins above 30%.

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