On July 21, United Microelectronics rose 3.69% overnight, trading at $21.05/share, with turnover of $775,800. The bounce came as the broader semiconductor sector staged a recovery, lifting UMC from a prolonged decline that had seen cumulative losses exceeding 18% over consecutive trading sessions.

Within the Semiconductors sector, peers posted broad-based gains: SK hynix up 5.86%, Micron Technology up 4.8%, Intel up 4.06%, Advanced Micro Devices up 2.92%, and NVIDIA up 0.82%. The industry-wide sentiment repair provided the catalyst for UMC's technical rebound.

On the fundamental side, UMC reported Q2 revenue growth of nearly 17% year-over-year, marking a 15-quarter high. Its Singapore 12-inch wafer fab has successfully delivered its first batch of mass-produced silicon photonics wafers in partnership with SILITH Technology, supporting 1.6Tbps high-bandwidth interconnect solutions for next-generation AI infrastructure. The next earnings report is scheduled for July 29.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)