As of June 2026 United Microelectronics has a market cap of โน5.698 Trillion. This makes United Microelectronics the world's 416th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Jun 19th, 2026 the market cap of United Microelectronics was reported to be: