United Microelectronics is trading 4.1% up now at $20.68 after reporting strong August 2026 net sales growth.

  • August net sales reached NT$25.04 billion, up 30.71% year over year.
  • January–August sales totaled NT$178.66 billion, up 14.66% year over year.
  • Broader markets are mixed, so the gain appears primarily driven by the operating update.