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United Microelectronics Corporation (UMC)
NYSE: UMC · Real-Time Price · USD
19.48
-1.39 (-6.66%)
At close: Jul 24, 2026, 4:00 PM EDT
19.50
+0.02 (0.10%)
After-hours: Jul 24, 2026, 7:59 PM EDT

United Microelectronics Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jul 24, 202619.8420.0818.9719.4819.48-6.66%16,397,830
Jul 23, 202620.7221.1120.4420.8720.87-1.97%9,174,700
Jul 22, 202621.0021.6020.9921.2921.290.47%7,335,615
Jul 21, 202621.5121.5120.8921.1921.194.38%17,340,378
Jul 20, 202620.6921.2320.2720.3020.30-4.47%11,848,462
Jul 17, 202620.5521.7420.1621.2521.25-4.67%20,761,250
Jul 16, 202622.7323.2022.0622.2922.29-10.55%20,879,307
Jul 15, 202625.6025.8024.2124.9224.924.53%15,692,122
Jul 14, 202624.1724.4023.5723.8423.841.62%13,168,833
Jul 13, 202623.5623.7323.0123.4623.46-3.62%18,469,835
Jul 10, 202624.3924.6323.7724.3424.34-2.09%6,695,081
Jul 9, 202625.0225.4924.6524.8624.860.53%11,953,735
Jul 8, 202624.4125.0424.0424.7324.735.17%14,127,560
Jul 7, 202624.1024.4723.3423.8323.51-7.74%21,687,918
Jul 6, 202625.7026.7825.5925.8325.495.26%13,180,631
Jul 2, 202626.0626.2924.1524.5424.21-4.55%21,014,028
Jul 1, 202626.3926.6625.6825.7125.37-5.51%19,750,319
Jun 30, 202626.3327.2726.1427.2126.851.38%14,475,715
Jun 29, 202625.7026.8624.8226.8426.484.93%11,871,422
Jun 26, 202625.4826.0924.8725.5825.24-7.75%19,297,927
Jun 25, 202628.2428.9627.3427.7327.36-1.00%20,957,135
Jun 24, 202626.4028.6626.4028.0127.646.91%24,354,599
Jun 23, 202625.9226.7025.8826.2025.85-4.73%25,943,473
Jun 22, 202626.9028.2826.8027.5027.1414.20%26,322,090
Jun 18, 202623.6324.1723.1024.0823.7610.66%26,913,568
Jun 17, 202622.2722.5321.7521.7621.470.65%13,622,498
Jun 16, 202622.4622.6821.5921.6221.33-6.33%16,464,387
Jun 15, 202622.5523.3622.3823.0822.776.70%15,920,026
Jun 12, 202620.8021.7820.6121.6321.344.59%16,400,361
Jun 11, 202619.8620.8519.8420.6820.419.42%20,628,674
Jun 10, 202619.0319.7118.8018.9018.65-4.93%20,239,040
Jun 9, 202620.4920.8018.7019.8819.62-0.60%23,741,830
Jun 8, 202620.2920.5819.6520.0019.741.52%16,800,830
Jun 5, 202620.5520.7019.6419.7019.44-5.24%32,089,655
Jun 4, 202620.2220.9819.9120.7920.51-2.94%17,539,726
Jun 3, 202621.1121.5020.5821.4221.14-4.63%16,532,121
Jun 2, 202622.3422.5121.8722.4622.16-1.88%15,033,144
Jun 1, 202622.9723.0222.1422.8922.593.20%11,502,971
May 29, 202622.6422.8421.9922.1821.89-2.20%14,650,528
May 28, 202622.3823.2021.7622.6822.382.07%16,065,899
May 27, 202623.6623.6921.6822.2221.935.41%27,433,620
May 26, 202621.0321.5220.5021.0820.8015.70%26,752,023
May 22, 202618.0818.3017.9818.2217.98-0.71%10,045,470
May 21, 202618.1218.4518.0118.3518.114.50%12,137,431
May 20, 202617.3117.6117.1217.5617.33-0.11%13,552,694
May 19, 202617.4218.1017.3017.5817.352.69%19,734,399
May 18, 202617.6017.7516.8817.1216.89-0.47%20,562,787
May 15, 202616.9017.4316.8417.2016.970.41%15,989,809
May 14, 202616.8617.3216.0017.1316.907.60%17,559,755
May 13, 202615.5816.1415.5715.9215.71-0.87%11,526,657