United Microelectronics is trading 5.4% up at $19.33 after no clear company-specific overnight catalyst was identified for August 24, 2026.
- Most recent substantive company news was July 29, 2026.
- Second-quarter revenue reached NT$68.73 billion, and 2026 capital spending was raised to $2 billion.
- That news is too dated to establish a direct pre-market cause.