UMC stock price hits a 52-week high zone — what to watch before United Microelectronics earnings

Taipei, Jan 18, 2026, 08:41 (GMT+8) — Market closed.

  • UMC’s shares listed in the U.S. jumped roughly 6% Friday, closing at $9.30.
  • SST, the foundry and Microchip division, announced its 28nm automotive-grade embedded flash platform is now production-ready.
  • Investors are focused on UMC’s upcoming results and guidance, expected in late January.

Shares of United Microelectronics Corp listed in the U.S. closed Friday up 6% at $9.30, outperforming the more subdued broader market heading into the weekend.

The ADR climbed to the upper edge of its 52-week range, hitting $9.37 at its peak. That tight margin leaves the company little wiggle room for weak guidance when it reports to investors later this month. (

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