United Microelectronics - 26 Year Stock Price History | UMC

The latest closing stock price for United Microelectronics as of June 05, 2026 is 19.70.

  • An investor who bought $1,000 worth of United Microelectronics stock at the IPO in 2000 would have $2,203 today, roughly 2 times their original investment - a 4.58% compound annual growth rate over 26 years.
  • The all-time high United Microelectronics stock closing price was 22.89 on June 01, 2026.
  • The United Microelectronics 52-week high stock price is 23.69, which is 20.3% above the current share price.
  • The United Microelectronics 52-week low stock price is 6.56, which is 66.7% below the current share price.
  • The average United Microelectronics stock price for the last 52 weeks is 9.34.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

United Microelectronics - 26 Year Stock Price History | UMC

  • An investor who bought $1,000 worth of United Microelectronics stock at the IPO in 2000 would have $2,203 today, roughly 2 times their original investment - a 4.58% compound annual growth rate over 26 years.
  • The all-time high United Microelectronics stock closing price was 22.89 on June 01, 2026.
  • The United Microelectronics 52-week high stock price is 23.69, which is 20.3% above the current share price.
  • The United Microelectronics 52-week low stock price is 6.56, which is 66.7% below the current share price.
  • The average United Microelectronics stock price for the last 52 weeks is 9.34.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.