As of December 2025 United Microelectronics has a market cap of NZ$35.30 Billion. This makes United Microelectronics the world's 1104th 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 Dec 22nd, 2025 the market cap of United Microelectronics was reported to be: