As of October 2026 United Microelectronics has a market cap of C$83.37 Billion. This makes United Microelectronics the world's 420th 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 Oct 7th, 2026 the market cap of United Microelectronics was reported to be: