On May 20, UMC rose 5.75% overnight, trading at $18.57/share, with trading volume of $758,300.
The rally continues to be fueled by the company's standout Q1 earnings report, which showed net profit surging 108% year-over-year to NT$16.17 billion, significantly exceeding market expectations. Gross margin reached 29.2% with capacity utilization climbing to 79%, reflecting strong operational efficiency. Mature-node pricing power is returning decisively — Q1 average selling prices rose 8% year-over-year, with Q2 prices expected to increase a further 5% to 7%, potentially lifting gross margins above 30%.
Additionally, the company recently launched a 14nm eHV FinFET technology platform for display driver ICs, claiming 40% power reduction and 35% chip area savings compared to its most advanced production eHV process. The platform supports advanced and foldable OLED smartphone display applications, further strengthening UMC's competitive positioning in specialized mature nodes.
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