On July 29, United Microelectronics fell 5.01% overnight, trading at $16.49/share, with turnover of $1.0087 million.

The decline came as the global semiconductor sector continued to face intense selling pressure. South Korea's KOSPI index previously plunged as much as 9.6%, triggering a 20-minute trading halt, while Samsung Electronics and SK Hynix each dropped over 11%. Concerns over an AI bubble and whether demand has been artificially inflated spread systematic selling across the entire semiconductor supply chain. United Microelectronics had already fallen over 11% in the prior session.

Adding to uncertainty, the company's Q2 earnings report is scheduled for release on the same day. Market consensus expects quarterly revenue of $2.044 billion, representing 9.28% year-over-year growth, with adjusted EPS of $0.15. Investors are closely watching capacity utilization guidance, mature-node pricing trends, and the progress of its 12nm collaboration with Intel.

(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.)