UMC shares surge 8.87% intraday on strong quarterly earnings and strategic partnership with SST.

United Microelectronics Corporation (UMC) surged 8.87% intraday on January 26, 2026, driven by a news report highlighting strong quarterly revenue growth to NT$19.28 billion and a strategic partnership with SST for automotive technology. The firm’s revenue rose 1.7% year-over-year, reflecting robust financial performance, while the collaboration with SST signaled potential expansion into high-growth sectors. Analysts noted the partnership could enhance UMC’s competitive positioning in semiconductor innovation, aligning with investor optimism. The stock’s intraday high of $11.40 and volume surge indicated immediate market confidence in these developments. Other news, including unrelated church activities and a blockchain firmware update, lacked direct relevance to the stock’s movement.