United Microelectronics Corporation (UMC)
NYSE: UMC · Real-Time Price · USD
9.73
+0.13 (1.35%)
At close: Mar 9, 2026, 4:00 PM EDT
9.73
0.00 (0.00%)
After-hours: Mar 9, 2026, 7:00 PM EDT
United Microelectronics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 9, 2026 | 9.39 | 9.75 | 9.36 | 9.73 | 9.73 | 1.35% | 14,960,947 |
| Mar 6, 2026 | 9.69 | 9.79 | 9.55 | 9.60 | 9.60 | -1.54% | 9,248,766 |
| Mar 5, 2026 | 9.85 | 9.98 | 9.55 | 9.75 | 9.75 | -1.32% | 7,232,071 |
| Mar 4, 2026 | 9.90 | 9.96 | 9.77 | 9.88 | 9.88 | -0.20% | 7,141,683 |
| Mar 3, 2026 | 9.87 | 10.01 | 9.81 | 9.90 | 9.90 | -5.80% | 13,520,632 |
| Mar 2, 2026 | 10.27 | 10.53 | 10.26 | 10.51 | 10.51 | 0.67% | 4,957,116 |
| Feb 27, 2026 | 10.26 | 10.46 | 10.18 | 10.44 | 10.44 | 1.36% | 4,661,179 |
| Feb 26, 2026 | 10.62 | 10.62 | 10.18 | 10.30 | 10.30 | -2.37% | 8,985,821 |
| Feb 25, 2026 | 10.50 | 10.64 | 10.43 | 10.55 | 10.55 | -3.39% | 6,606,816 |
| Feb 24, 2026 | 10.93 | 11.04 | 10.89 | 10.92 | 10.92 | 4.80% | 6,885,552 |
| Feb 23, 2026 | 10.40 | 10.53 | 10.33 | 10.42 | 10.42 | 0.19% | 6,005,046 |
| Feb 20, 2026 | 10.13 | 10.47 | 10.13 | 10.40 | 10.40 | 2.67% | 8,401,228 |
| Feb 19, 2026 | 10.23 | 10.24 | 10.07 | 10.13 | 10.13 | -0.98% | 3,987,316 |
| Feb 18, 2026 | 10.25 | 10.37 | 10.19 | 10.23 | 10.23 | -0.39% | 6,496,129 |
| Feb 17, 2026 | 10.27 | 10.33 | 10.15 | 10.27 | 10.27 | -1.44% | 6,632,614 |
| Feb 13, 2026 | 10.28 | 10.49 | 10.28 | 10.42 | 10.42 | 1.26% | 8,146,551 |
| Feb 12, 2026 | 10.44 | 10.44 | 10.18 | 10.29 | 10.29 | -0.10% | 9,369,875 |
| Feb 11, 2026 | 10.11 | 10.35 | 10.04 | 10.30 | 10.30 | 3.94% | 9,188,234 |
| Feb 10, 2026 | 10.00 | 10.07 | 9.90 | 9.91 | 9.91 | -1.39% | 7,075,230 |
| Feb 9, 2026 | 10.00 | 10.17 | 9.93 | 10.05 | 10.05 | -0.10% | 8,110,907 |
| Feb 6, 2026 | 10.06 | 10.20 | 9.99 | 10.06 | 10.06 | 0.90% | 14,591,922 |
| Feb 5, 2026 | 9.75 | 10.03 | 9.71 | 9.97 | 9.97 | 0.20% | 8,576,632 |
| Feb 4, 2026 | 10.02 | 10.12 | 9.78 | 9.95 | 9.95 | 1.02% | 14,190,748 |
| Feb 3, 2026 | 9.81 | 9.89 | 9.65 | 9.85 | 9.85 | -1.89% | 13,426,604 |
| Feb 2, 2026 | 9.77 | 10.10 | 9.69 | 10.04 | 10.04 | -1.38% | 9,866,472 |
| Jan 30, 2026 | 10.15 | 10.45 | 10.07 | 10.18 | 10.18 | -3.78% | 16,668,181 |
| Jan 29, 2026 | 10.71 | 10.79 | 10.37 | 10.58 | 10.58 | -7.03% | 14,363,427 |
| Jan 28, 2026 | 11.46 | 11.86 | 11.23 | 11.38 | 11.38 | -8.81% | 23,981,555 |
| Jan 27, 2026 | 12.52 | 12.68 | 12.22 | 12.48 | 12.48 | 10.15% | 26,873,044 |
| Jan 26, 2026 | 11.20 | 11.42 | 11.13 | 11.33 | 11.33 | 7.50% | 19,376,919 |
| Jan 23, 2026 | 10.30 | 10.56 | 10.26 | 10.54 | 10.54 | -3.30% | 12,715,164 |
| Jan 22, 2026 | 10.83 | 10.94 | 10.78 | 10.90 | 10.90 | -2.07% | 8,560,660 |
| Jan 21, 2026 | 10.85 | 11.20 | 10.85 | 11.13 | 11.13 | 3.25% | 19,399,322 |
| Jan 20, 2026 | 10.60 | 10.93 | 10.56 | 10.78 | 10.78 | 15.91% | 24,379,946 |
| Jan 16, 2026 | 9.26 | 9.37 | 9.15 | 9.30 | 9.30 | 6.04% | 14,238,273 |
| Jan 15, 2026 | 8.87 | 8.94 | 8.76 | 8.77 | 8.77 | -0.23% | 8,110,638 |
| Jan 14, 2026 | 8.58 | 8.80 | 8.52 | 8.79 | 8.79 | 1.50% | 10,692,002 |
| Jan 13, 2026 | 8.80 | 8.82 | 8.64 | 8.66 | 8.66 | -2.15% | 7,584,401 |
| Jan 12, 2026 | 8.76 | 8.89 | 8.76 | 8.85 | 8.85 | 0.68% | 6,414,634 |
| Jan 9, 2026 | 8.81 | 8.86 | 8.66 | 8.79 | 8.79 | 2.81% | 8,889,947 |
| Jan 8, 2026 | 8.56 | 8.72 | 8.47 | 8.55 | 8.55 | -4.26% | 11,426,830 |
| Jan 7, 2026 | 8.91 | 9.11 | 8.78 | 8.93 | 8.93 | 9.98% | 21,000,067 |
| Jan 6, 2026 | 7.85 | 8.15 | 7.84 | 8.12 | 8.12 | 4.50% | 16,421,736 |
| Jan 5, 2026 | 7.79 | 7.81 | 7.70 | 7.77 | 7.77 | -0.89% | 10,479,560 |
| Jan 2, 2026 | 7.85 | 7.90 | 7.76 | 7.84 | 7.84 | -0.25% | 11,607,595 |
| Dec 31, 2025 | 7.92 | 7.96 | 7.84 | 7.86 | 7.86 | -1.26% | 3,867,941 |
| Dec 30, 2025 | 7.98 | 8.00 | 7.94 | 7.96 | 7.96 | -0.13% | 2,978,123 |
| Dec 29, 2025 | 7.92 | 7.97 | 7.90 | 7.97 | 7.97 | -0.62% | 3,628,331 |
| Dec 26, 2025 | 7.99 | 8.06 | 7.99 | 8.02 | 8.02 | 0.25% | 3,972,969 |
| Dec 24, 2025 | 7.97 | 8.02 | 7.94 | 8.00 | 8.00 | 0.38% | 5,502,120 |
| Dec 23, 2025 | 8.04 | 8.05 | 7.92 | 7.97 | 7.97 | -1.97% | 5,376,206 |
| Dec 22, 2025 | 8.12 | 8.15 | 8.09 | 8.13 | 8.13 | 0.37% | 4,570,129 |
| Dec 19, 2025 | 8.09 | 8.17 | 8.09 | 8.10 | 8.10 | 0.37% | 13,173,830 |
| Dec 18, 2025 | 8.05 | 8.12 | 8.01 | 8.07 | 8.07 | 0.88% | 9,020,411 |
| Dec 17, 2025 | 8.08 | 8.16 | 7.98 | 8.00 | 8.00 | 1.39% | 10,217,627 |
| Dec 16, 2025 | 7.90 | 7.94 | 7.84 | 7.89 | 7.89 | 0.64% | 8,831,099 |
| Dec 15, 2025 | 7.92 | 7.95 | 7.83 | 7.84 | 7.84 | -0.38% | 6,915,829 |
| Dec 12, 2025 | 7.88 | 7.89 | 7.80 | 7.87 | 7.87 | -0.25% | 15,394,666 |
| Dec 11, 2025 | 7.91 | 7.91 | 7.78 | 7.89 | 7.89 | -1.38% | 8,398,629 |
| Dec 10, 2025 | 7.97 | 8.05 | 7.95 | 8.00 | 8.00 | -1.11% | 9,228,113 |
| Dec 9, 2025 | 8.02 | 8.10 | 7.97 | 8.09 | 8.09 | 0.50% | 8,896,801 |
| Dec 8, 2025 | 8.02 | 8.08 | 7.98 | 8.05 | 8.05 | 0.37% | 8,420,899 |
| Dec 5, 2025 | 7.90 | 8.06 | 7.88 | 8.02 | 8.02 | 1.91% | 10,655,639 |
| Dec 4, 2025 | 7.78 | 7.94 | 7.78 | 7.87 | 7.87 | 0.25% | 9,468,268 |
| Dec 3, 2025 | 7.67 | 7.87 | 7.66 | 7.85 | 7.85 | 0.90% | 9,272,994 |
| Dec 2, 2025 | 7.55 | 7.80 | 7.55 | 7.78 | 7.78 | 3.32% | 9,487,063 |
| Dec 1, 2025 | 7.49 | 7.60 | 7.48 | 7.53 | 7.53 | 0.94% | 6,626,324 |
| Nov 28, 2025 | 7.35 | 7.47 | 7.33 | 7.46 | 7.46 | 1.77% | 5,488,829 |
| Nov 26, 2025 | 7.31 | 7.43 | 7.28 | 7.33 | 7.33 | 0.83% | 8,087,474 |
| Nov 25, 2025 | 7.25 | 7.28 | 7.15 | 7.27 | 7.27 | -2.28% | 6,022,171 |
| Nov 24, 2025 | 7.33 | 7.45 | 7.33 | 7.44 | 7.44 | 2.76% | 9,730,028 |
| Nov 21, 2025 | 7.19 | 7.31 | 7.11 | 7.24 | 7.24 | 1.69% | 11,543,165 |
| Nov 20, 2025 | 7.26 | 7.27 | 7.05 | 7.12 | 7.12 | -1.52% | 12,394,751 |
| Nov 19, 2025 | 7.09 | 7.26 | 7.08 | 7.23 | 7.23 | 2.41% | 8,212,450 |
| Nov 18, 2025 | 6.99 | 7.12 | 6.99 | 7.06 | 7.06 | 0.57% | 7,757,130 |
| Nov 17, 2025 | 7.08 | 7.11 | 6.97 | 7.02 | 7.02 | -1.68% | 5,327,580 |
| Nov 14, 2025 | 7.09 | 7.24 | 7.07 | 7.14 | 7.14 | 0.42% | 5,889,939 |
| Nov 13, 2025 | 7.22 | 7.23 | 7.07 | 7.11 | 7.11 | -1.80% | 8,149,482 |
| Nov 12, 2025 | 7.25 | 7.33 | 7.17 | 7.24 | 7.24 | -1.90% | 7,060,207 |
| Nov 11, 2025 | 7.36 | 7.41 | 7.32 | 7.38 | 7.38 | -0.67% | 7,882,417 |
| Nov 10, 2025 | 7.43 | 7.45 | 7.35 | 7.43 | 7.43 | 0.27% | 7,134,158 |
| Nov 7, 2025 | 7.29 | 7.41 | 7.26 | 7.41 | 7.41 | 1.37% | 9,303,483 |
| Nov 6, 2025 | 7.48 | 7.50 | 7.15 | 7.31 | 7.31 | -5.80% | 10,936,408 |
| Nov 5, 2025 | 7.63 | 7.86 | 7.63 | 7.76 | 7.76 | 2.11% | 9,446,504 |
| Nov 4, 2025 | 7.69 | 7.72 | 7.60 | 7.60 | 7.60 | -3.06% | 10,109,105 |
| Nov 3, 2025 | 7.82 | 7.90 | 7.80 | 7.84 | 7.84 | 1.69% | 7,479,818 |
| Oct 31, 2025 | 7.61 | 7.85 | 7.57 | 7.71 | 7.71 | 2.39% | 10,153,197 |
| Oct 30, 2025 | 7.49 | 7.59 | 7.37 | 7.53 | 7.53 | 1.89% | 9,729,646 |
| Oct 29, 2025 | 7.80 | 7.81 | 7.29 | 7.39 | 7.39 | -3.15% | 12,481,791 |
| Oct 28, 2025 | 7.55 | 7.68 | 7.52 | 7.63 | 7.63 | 0.79% | 6,728,024 |
| Oct 27, 2025 | 7.52 | 7.58 | 7.42 | 7.57 | 7.57 | 0.40% | 8,009,306 |
| Oct 24, 2025 | 7.57 | 7.61 | 7.53 | 7.54 | 7.54 | 0.27% | 7,440,015 |
| Oct 23, 2025 | 7.35 | 7.55 | 7.35 | 7.52 | 7.52 | 1.90% | 5,612,068 |
| Oct 22, 2025 | 7.41 | 7.45 | 7.30 | 7.38 | 7.38 | -0.94% | 7,880,684 |
| Oct 21, 2025 | 7.49 | 7.49 | 7.37 | 7.45 | 7.45 | -0.93% | 6,136,101 |
| Oct 20, 2025 | 7.57 | 7.58 | 7.52 | 7.52 | 7.52 | 0.67% | 6,254,968 |
| 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 |