On June 18, United Microelectronics rose 4.78% in pre-market trading, trading at $22.16/share, with turnover of $396,600, extending its rebound following the prior session's pullback.

On the news front, the broader semiconductor sector staged a recovery, with Micron Technology up 4.65%, Marvell Technology up 4.70%, Broadcom up 3.11%, and Advanced Micro Devices up 3.03%, reflecting improved sector sentiment and capital inflows. On the fundamental side, UMC's embedded Deep Trench Capacitor (DTC) technology has successfully entered Qualcomm's supply chain with shipments already underway. This development is layered on top of Q1 net profit surging 108% year-over-year to NT$16.17 billion, along with confirmed selective price hikes of approximately 10% in the second half. After accumulating over 15% in pullback previously due to elevated valuations, these multiple positive catalysts have converged to attract sustained dip-buying interest.

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