United Microelectronics Corporation historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2025-10-21 | 46.200 | 46.300 | 45.450 | 45.450 | 44.685 | 25,934,845 |
| 2025-10-20 | 46.050 | 46.250 | 45.850 | 46.100 | 45.324 | 32,982,073 |
| 2025-10-17 | 45.300 | 45.900 | 45.100 | 45.750 | 44.980 | 45,710,984 |
| 2025-10-16 | 44.900 | 45.300 | 44.650 | 44.900 | 44.145 | 31,492,824 |
| 2025-10-15 | 45.000 | 45.100 | 44.300 | 44.500 | 43.751 | 35,642,582 |
| 2025-10-14 | 46.000 | 46.350 | 44.850 | 44.850 | 44.095 | 46,400,125 |
| 2025-10-13 | 44.500 | 45.500 | 44.250 | 45.450 | 44.685 | 59,392,456 |
| 2025-10-09 | 45.600 | 46.300 | 45.500 | 45.650 | 44.882 | 71,854,411 |
| 2025-10-08 | 44.500 | 44.950 | 44.300 | 44.950 | 44.194 | 39,893,979 |
| 2025-10-07 | 43.850 | 44.350 | 43.500 | 44.300 | 43.555 | 29,753,422 |
| 2025-10-03 | 43.350 | 43.850 | 43.200 | 43.850 | 43.112 | 40,817,851 |
| 2025-10-02 | 44.450 | 44.550 | 43.350 | 43.800 | 43.063 | 61,988,144 |
| 2025-10-01 | 45.800 | 45.900 | 44.000 | 44.250 | 43.505 | 80,189,193 |
| 2025-09-30 | 45.550 | 47.300 | 45.250 | 45.550 | 44.784 | 132,135,580 |
| 2025-09-29 | 44.850 | 44.850 | 44.850 | 44.850 | 44.095 | 0 |
| 2025-09-26 | 44.850 | 45.300 | 44.150 | 44.850 | 44.095 | 47,396,933 |
| 2025-09-25 | 44.850 | 45.250 | 44.050 | 44.300 | 43.555 | 58,873,725 |
| 2025-09-24 | 44.400 | 45.300 | 44.100 | 44.850 | 44.095 | 86,102,820 |
| 2025-09-23 | 43.550 | 44.450 | 43.350 | 43.900 | 43.161 | 84,234,256 |
| 2025-09-22 | 43.900 | 43.950 | 43.000 | 43.050 | 42.326 | 64,904,449 |
| 2025-09-19 | 42.450 | 43.400 | 42.200 | 43.250 | 42.522 | 107,771,839 |
| 2025-09-18 | 41.700 | 42.100 | 41.650 | 41.800 | 41.097 | 38,555,370 |
| 2025-09-17 | 41.100 | 41.500 | 41.100 | 41.450 | 40.753 | 21,981,283 |
| 2025-09-16 | 41.200 | 41.500 | 41.050 | 41.050 | 40.359 | 20,338,285 |
| 2025-09-15 | 41.200 | 41.450 | 41.100 | 41.100 | 40.408 | 27,414,854 |
| 2025-09-12 | 41.000 | 41.300 | 40.900 | 41.150 | 40.458 | 25,369,434 |
| 2025-09-11 | 41.250 | 41.400 | 40.900 | 40.900 | 40.212 | 22,260,883 |
| 2025-09-10 | 41.450 | 41.500 | 41.100 | 41.250 | 40.556 | 22,594,413 |
| 2025-09-09 | 41.600 | 41.750 | 41.400 | 41.450 | 40.753 | 17,589,011 |
| 2025-09-08 | 41.600 | 41.650 | 41.250 | 41.600 | 40.900 | 16,875,937 |
| 2025-09-05 | 41.850 | 41.900 | 41.050 | 41.200 | 40.507 | 36,383,751 |
| 2025-09-04 | 41.150 | 42.700 | 41.150 | 42.000 | 41.293 | 67,960,253 |
| 2025-09-03 | 40.950 | 40.950 | 40.700 | 40.900 | 40.212 | 11,803,934 |
| 2025-09-02 | 40.900 | 41.000 | 40.650 | 40.900 | 40.212 | 20,379,773 |
| 2025-09-01 | 40.600 | 40.800 | 40.400 | 40.750 | 40.064 | 20,806,971 |
| 2025-08-29 | 40.850 | 40.900 | 40.450 | 40.500 | 39.819 | 23,815,284 |
| 2025-08-28 | 40.950 | 41.200 | 40.600 | 40.600 | 39.917 | 23,816,343 |
| 2025-08-27 | 41.200 | 41.300 | 40.900 | 40.950 | 40.261 | 30,264,987 |
| 2025-08-26 | 40.500 | 41.800 | 40.350 | 41.800 | 41.097 | 64,111,108 |
| 2025-08-25 | 40.850 | 40.900 | 40.550 | 40.550 | 39.868 | 21,425,973 |
| 2025-08-22 | 41.150 | 41.200 | 40.600 | 40.600 | 39.917 | 24,604,317 |
| 2025-08-21 | 42.000 | 42.050 | 41.400 | 41.400 | 40.703 | 46,125,182 |
| 2025-08-20 | 41.500 | 42.500 | 41.500 | 41.900 | 41.195 | 109,360,639 |
| 2025-08-19 | 40.300 | 41.050 | 40.100 | 41.050 | 40.359 | 32,207,923 |
| 2025-08-18 | 40.900 | 40.900 | 40.200 | 40.400 | 39.720 | 50,417,766 |
| 2025-08-15 | 41.100 | 41.600 | 41.000 | 41.200 | 40.507 | 33,021,625 |
| 2025-08-14 | 40.850 | 41.000 | 40.750 | 40.800 | 40.114 | 25,526,067 |
| 2025-08-13 | 40.800 | 41.000 | 40.400 | 40.750 | 40.064 | 29,479,379 |
| 2025-08-12 | 40.600 | 40.850 | 40.350 | 40.650 | 39.966 | 24,073,607 |
| 2025-08-11 | 40.400 | 40.650 | 40.300 | 40.400 | 39.720 | 24,697,504 |
| 2025-08-08 | 40.400 | 40.600 | 40.200 | 40.500 | 39.819 | 34,741,791 |
| 2025-08-07 | 40.500 | 40.800 | 40.400 | 40.400 | 39.720 | 52,613,355 |
| 2025-08-06 | 40.950 | 41.000 | 40.350 | 40.700 | 40.015 | 42,323,182 |
| 2025-08-05 | 41.350 | 41.650 | 41.300 | 41.400 | 40.703 | 27,774,547 |
| 2025-08-04 | 40.900 | 41.550 | 40.500 | 41.200 | 40.507 | 35,962,931 |
| 2025-08-01 | 41.550 | 41.550 | 41.550 | 41.550 | 40.851 | 0 |
| 2025-07-31 | 42.250 | 42.250 | 41.550 | 41.550 | 40.851 | 42,952,609 |
| 2025-07-30 | 42.800 | 42.900 | 42.100 | 42.550 | 41.834 | 45,900,200 |
| 2025-07-29 | 43.300 | 43.350 | 42.800 | 42.800 | 42.080 | 35,741,812 |
| 2025-07-28 | 43.500 | 43.600 | 43.000 | 43.500 | 42.768 | 35,776,877 |
Stock splits
No stock splits on record.
Dividends
| Ex-date | Amount |
|---|---|
| 2026-07-08 | 2.6081 TWD |
| 2025-06-24 | 2.8502 TWD |
| 2024-07-02 | 3.0001 TWD |
| 2023-06-27 | 3.6005 TWD |
| 2022-06-22 | 3.0000 TWD |
| 2021-07-22 | 1.5999 TWD |
| 2020-07-15 | 0.8040 TWD |
| 2019-07-16 | 0.5899 TWD |
Open, high, low and close are as traded (TWD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.