United Microelectronics (UMC) stock slid into the weekend — the Feb. 5 update traders are waiting for
TAIPEI, Feb 1, 2026, 08:49 GMT+8 — Market closed United Microelectronics Corp’s shares on the U.S. market dropped 3.9% to close at $10.18 on Friday. The Taiwan-listed shares fell even more sharply, sliding 8.8% to finish at NT$62.40. (MarketWatch) These shifts extend beyond a single company. UMC, a contract chipmaker or foundry, offers one of the clearest signals on demand…