United Microelectronics Corporation (UMC)

NYSE: UMC · Real-Time Price · USD

21.63

+0.95 (4.59%)

At close: Jun 12, 2026, 4:00 PM EDT

21.67

+0.04 (0.18%)

After-hours: Jun 12, 2026, 7:59 PM EDT

United Microelectronics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 12, 2026	20.80	21.78	20.61	21.63	21.63	4.59%	14,494,235
Jun 11, 2026	19.86	20.85	19.84	20.68	20.68	9.42%	20,591,997
Jun 10, 2026	19.03	19.71	18.80	18.90	18.90	-4.93%	20,213,198
Jun 9, 2026	20.49	20.80	18.70	19.88	19.88	-0.60%	23,726,732
Jun 8, 2026	20.29	20.58	19.65	20.00	20.00	1.52%	16,518,499
Jun 5, 2026	20.55	20.70	19.64	19.70	19.70	-5.24%	31,748,362
Jun 4, 2026	20.22	20.98	19.91	20.79	20.79	-2.94%	16,136,748
Jun 3, 2026	21.11	21.50	20.58	21.42	21.42	-4.63%	15,645,736
Jun 2, 2026	22.34	22.51	21.87	22.46	22.46	-1.88%	14,968,290
Jun 1, 2026	22.97	23.02	22.14	22.89	22.89	3.20%	11,470,032
May 29, 2026	22.64	22.84	21.99	22.18	22.18	-2.20%	14,540,736
May 28, 2026	22.38	23.20	21.76	22.68	22.68	2.07%	15,902,673
May 27, 2026	23.66	23.69	21.68	22.22	22.22	5.41%	27,189,879
May 26, 2026	21.03	21.52	20.50	21.08	21.08	15.70%	26,696,425
May 22, 2026	18.08	18.30	17.98	18.22	18.22	-0.71%	10,036,396
May 21, 2026	18.12	18.45	18.01	18.35	18.35	4.50%	12,092,544
May 20, 2026	17.31	17.61	17.12	17.56	17.56	-0.11%	13,536,304
May 19, 2026	17.42	18.10	17.30	17.58	17.58	2.69%	19,691,237
May 18, 2026	17.60	17.75	16.88	17.12	17.12	-0.47%	20,516,986
May 15, 2026	16.90	17.43	16.84	17.20	17.20	0.41%	15,922,842
May 14, 2026	16.86	17.32	16.00	17.13	17.13	7.60%	17,559,755
May 13, 2026	15.58	16.14	15.57	15.92	15.92	-0.87%	11,526,657
May 12, 2026	16.17	16.30	15.50	16.06	16.06	3.01%	19,760,232
May 11, 2026	15.65	15.90	15.39	15.59	15.59	1.10%	13,858,566
May 8, 2026	14.52	15.45	14.43	15.42	15.42	1.72%	14,785,162
May 7, 2026	15.24	15.45	15.02	15.16	15.16	-0.46%	16,029,124
May 6, 2026	15.29	15.45	14.70	15.23	15.23	8.71%	30,100,122
May 5, 2026	13.50	14.22	13.42	14.01	14.01	7.94%	23,357,494
May 4, 2026	13.17	13.37	12.89	12.98	12.98	-0.54%	9,248,335
May 1, 2026	13.03	13.20	12.96	13.05	13.05	-0.08%	8,407,605
Apr 30, 2026	12.45	13.13	12.45	13.06	13.06	2.43%	15,475,555
Apr 29, 2026	12.43	13.39	12.10	12.75	12.75	9.35%	25,368,597
Apr 28, 2026	11.69	11.89	11.57	11.66	11.66	-0.26%	12,220,848
Apr 27, 2026	11.58	11.79	11.46	11.69	11.69	-4.80%	12,884,420
Apr 24, 2026	12.18	12.32	12.12	12.28	12.28	2.33%	10,979,204
Apr 23, 2026	11.97	12.10	11.82	12.00	12.00	-5.59%	10,655,422
Apr 22, 2026	12.63	12.82	12.58	12.71	12.71	3.08%	10,053,688
Apr 21, 2026	12.18	12.44	12.05	12.33	12.33	-2.45%	13,172,438
Apr 20, 2026	12.49	12.74	12.21	12.64	12.64	8.40%	22,647,161
Apr 17, 2026	11.85	11.86	11.41	11.66	11.66	9.79%	20,922,392
Apr 16, 2026	10.47	10.74	10.41	10.62	10.62	6.73%	11,609,123
Apr 15, 2026	9.91	9.96	9.80	9.95	9.95	3.75%	7,029,255
Apr 14, 2026	9.69	9.70	9.52	9.59	9.59	-1.13%	5,458,835
Apr 13, 2026	9.53	9.72	9.46	9.70	9.70	-0.41%	7,030,873
Apr 10, 2026	9.81	9.85	9.70	9.74	9.74	2.20%	6,704,807
Apr 9, 2026	9.37	9.54	9.37	9.53	9.53	0.63%	7,807,524
Apr 8, 2026	9.46	9.61	9.38	9.47	9.47	1.72%	12,162,419
Apr 7, 2026	9.09	9.31	8.98	9.31	9.31	7.13%	16,941,432
Apr 6, 2026	8.70	8.75	8.65	8.69	8.69	0.23%	5,440,243
Apr 2, 2026	8.29	8.69	8.29	8.67	8.67	-3.34%	7,662,975