United Microelectronics Corporation (UMC)
NYSE: UMC · Real-Time Price · USD
7.52
+0.05 (0.67%)
At close: Oct 20, 2025, 4:00 PM EDT
7.52
0.00 (0.00%)
After-hours: Oct 20, 2025, 7:00 PM EDT
United Microelectronics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 20, 2025 | 7.57 | 7.58 | 7.52 | 7.52 | 7.52 | 0.67% | 6,245,143 |
| Oct 17, 2025 | 7.47 | 7.54 | 7.40 | 7.47 | 7.47 | 0.54% | 4,302,733 |
| Oct 16, 2025 | 7.48 | 7.55 | 7.37 | 7.43 | 7.43 | 0.13% | 6,062,908 |
| Oct 15, 2025 | 7.42 | 7.45 | 7.33 | 7.42 | 7.42 | 0.27% | 7,918,020 |
| Oct 14, 2025 | 7.43 | 7.47 | 7.36 | 7.40 | 7.40 | -3.14% | 6,955,784 |
| Oct 13, 2025 | 7.50 | 7.66 | 7.42 | 7.64 | 7.64 | 6.41% | 11,657,487 |
| Oct 10, 2025 | 7.48 | 7.50 | 7.18 | 7.18 | 7.18 | -4.01% | 13,243,363 |
| Oct 9, 2025 | 7.56 | 7.57 | 7.41 | 7.48 | 7.48 | -0.93% | 4,254,240 |
| Oct 8, 2025 | 7.38 | 7.55 | 7.38 | 7.55 | 7.55 | 3.57% | 6,902,346 |
| Oct 7, 2025 | 7.45 | 7.49 | 7.27 | 7.29 | 7.29 | -0.82% | 7,424,647 |
| Oct 6, 2025 | 7.26 | 7.35 | 7.23 | 7.35 | 7.35 | 1.38% | 8,449,945 |
| Oct 3, 2025 | 7.30 | 7.33 | 7.20 | 7.25 | 7.25 | -0.55% | 5,469,037 |
| Oct 2, 2025 | 7.30 | 7.35 | 7.26 | 7.29 | 7.29 | -1.62% | 10,388,999 |
| Oct 1, 2025 | 7.41 | 7.44 | 7.28 | 7.41 | 7.41 | -2.24% | 10,250,018 |
| Sep 30, 2025 | 7.59 | 7.59 | 7.46 | 7.58 | 7.58 | -0.13% | 8,145,638 |
| Sep 29, 2025 | 7.58 | 7.66 | 7.56 | 7.59 | 7.59 | 0.66% | 10,447,465 |
| Sep 26, 2025 | 7.42 | 7.61 | 7.42 | 7.54 | 7.54 | 1.21% | 13,982,861 |
| Sep 25, 2025 | 7.34 | 7.47 | 7.27 | 7.45 | 7.45 | -0.40% | 8,467,963 |
| Sep 24, 2025 | 7.40 | 7.49 | 7.38 | 7.48 | 7.48 | 1.49% | 5,624,426 |
| Sep 23, 2025 | 7.36 | 7.39 | 7.34 | 7.37 | 7.37 | 1.52% | 6,090,157 |
| Sep 22, 2025 | 7.15 | 7.29 | 7.15 | 7.26 | 7.26 | 1.68% | 6,847,655 |
| Sep 19, 2025 | 7.12 | 7.16 | 7.08 | 7.14 | 7.14 | 2.15% | 6,828,766 |
| Sep 18, 2025 | 6.93 | 7.00 | 6.90 | 6.99 | 6.99 | 1.30% | 7,316,472 |
| Sep 17, 2025 | 6.89 | 6.94 | 6.83 | 6.90 | 6.90 | 1.02% | 4,454,084 |
| Sep 16, 2025 | 6.86 | 6.89 | 6.83 | 6.83 | 6.83 | -0.29% | 3,098,999 |
| Sep 15, 2025 | 6.78 | 6.94 | 6.77 | 6.85 | 6.85 | 1.33% | 5,092,876 |
| Sep 12, 2025 | 6.78 | 6.80 | 6.72 | 6.76 | 6.76 | -0.15% | 3,153,697 |
| Sep 11, 2025 | 6.80 | 6.82 | 6.76 | 6.77 | 6.77 | -1.02% | 3,545,562 |
| Sep 10, 2025 | 6.87 | 6.87 | 6.81 | 6.84 | 6.84 | -0.44% | 3,940,857 |
| Sep 9, 2025 | 6.89 | 6.90 | 6.85 | 6.87 | 6.87 | -0.29% | 2,941,584 |
| Sep 8, 2025 | 6.80 | 6.89 | 6.80 | 6.89 | 6.89 | 1.32% | 3,034,526 |
| Sep 5, 2025 | 6.75 | 6.81 | 6.73 | 6.80 | 6.80 | -1.16% | 4,752,059 |
| Sep 4, 2025 | 6.83 | 6.89 | 6.81 | 6.88 | 6.88 | 3.46% | 5,165,689 |
| Sep 3, 2025 | 6.64 | 6.69 | 6.64 | 6.65 | 6.65 | 0.45% | 5,187,879 |
| Sep 2, 2025 | 6.59 | 6.64 | 6.56 | 6.62 | 6.62 | 0.61% | 4,345,234 |
| Aug 29, 2025 | 6.65 | 6.66 | 6.58 | 6.58 | 6.58 | -1.64% | 6,937,435 |
| Aug 28, 2025 | 6.68 | 6.70 | 6.66 | 6.69 | 6.69 | -0.45% | 3,272,190 |
| Aug 27, 2025 | 6.74 | 6.74 | 6.66 | 6.72 | 6.72 | -0.30% | 3,354,414 |
| Aug 26, 2025 | 6.76 | 6.80 | 6.73 | 6.74 | 6.74 | 1.20% | 5,551,156 |
| Aug 25, 2025 | 6.68 | 6.70 | 6.64 | 6.66 | 6.66 | -1.62% | 4,044,270 |
| Aug 22, 2025 | 6.79 | 6.82 | 6.66 | 6.77 | 6.77 | 0.45% | 8,352,776 |
| Aug 21, 2025 | 6.79 | 6.82 | 6.74 | 6.74 | 6.74 | -1.89% | 3,758,529 |
| Aug 20, 2025 | 6.89 | 6.91 | 6.78 | 6.87 | 6.87 | 1.03% | 9,430,257 |
| Aug 19, 2025 | 6.86 | 6.90 | 6.78 | 6.80 | 6.80 | -0.15% | 9,634,299 |
| Aug 18, 2025 | 6.78 | 6.83 | 6.76 | 6.81 | 6.81 | -1.02% | 5,480,542 |
| Aug 15, 2025 | 6.85 | 7.24 | 6.81 | 6.88 | 6.88 | -0.15% | 9,589,317 |
| Aug 14, 2025 | 6.77 | 6.94 | 6.77 | 6.89 | 6.89 | 0.73% | 9,155,542 |
| Aug 13, 2025 | 6.82 | 6.86 | 6.76 | 6.84 | 6.84 | 0.44% | 7,099,264 |
| Aug 12, 2025 | 6.78 | 6.82 | 6.74 | 6.81 | 6.81 | 1.34% | 8,249,419 |
| Aug 11, 2025 | 6.71 | 6.81 | 6.71 | 6.72 | 6.72 | -0.15% | 6,974,354 |