UMC
United Microelectronic Corp.
stockNYSEADR
Market OpenOct 28, 2026 10:28:42 AM EDT
18.79USD-3.393%(-0.66)2,651,183
Pre-marketOct 28, 2026 9:29:30 AM EDT
19.01USD-2.262%(-0.44)
UMC Stock Splits
| Ex-Date | Ratio | Shares | Type |
|---|---|---|---|
| 2008-08-07 | 1.045-for-1 | ×1.045 | Forward |
| 2007-10-09 | 1-for-1.4347 | ×0.697 | Reverse |
| 2004-07-12 | 27-for-25 | ×1.08 | Forward |
| 2003-07-14 | 1.0401-for-1 | ×1.0401 | Forward |
| 2001-07-12 | 23-for-20 | ×1.15 | Forward |