United Microelectronics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Aug 1, 2025	40.75	41.40	40.35	41.05	41.05	-1.20%	30,847,258
Jul 31, 2025	42.25	42.25	41.55	41.55	41.55	-2.35%	43,354,484
Jul 30, 2025	42.80	42.90	42.10	42.55	42.55	-0.58%	46,318,240
Jul 29, 2025	43.30	43.35	42.80	42.80	42.80	-1.61%	35,928,315
Jul 28, 2025	43.50	43.60	43.00	43.50	43.50	-	35,893,370
Jul 25, 2025	43.40	43.75	43.30	43.50	43.50	-	17,727,075
Jul 24, 2025	43.95	44.00	43.45	43.50	43.50	-0.91%	15,056,849
Jul 23, 2025	43.40	43.90	43.30	43.90	43.90	2.09%	24,654,734
Jul 22, 2025	43.80	43.80	43.00	43.00	43.00	-1.15%	26,480,271
Jul 21, 2025	43.60	43.70	43.35	43.50	43.50	0.12%	16,484,693
Jul 18, 2025	43.75	44.05	43.35	43.45	43.45	-0.23%	25,905,891
Jul 17, 2025	43.50	43.60	43.15	43.55	43.55	0.23%	24,169,060
Jul 16, 2025	43.55	43.60	43.20	43.45	43.45	-0.23%	28,442,513
Jul 15, 2025	43.00	43.55	42.90	43.55	43.55	0.93%	21,213,440
Jul 14, 2025	43.25	43.35	42.80	43.15	43.15	-0.23%	23,398,431
Jul 11, 2025	43.70	43.70	43.20	43.25	43.25	-1.03%	20,103,462
Jul 10, 2025	43.80	44.00	43.20	43.70	43.70	-0.46%	31,767,815
Jul 9, 2025	43.50	43.95	43.45	43.90	43.90	0.46%	23,934,172
Jul 8, 2025	43.60	43.80	43.15	43.70	43.70	0.58%	29,455,888
Jul 7, 2025	44.05	44.05	43.10	43.45	43.45	-0.69%	39,218,437
Jul 4, 2025	44.70	44.75	43.55	43.75	43.75	-1.46%	44,412,641
Jul 3, 2025	44.55	44.95	44.25	44.40	44.40	-0.11%	37,209,280
Jul 2, 2025	43.85	44.45	43.80	44.45	44.45	1.14%	41,524,021
Jul 1, 2025	44.25	44.60	43.55	43.95	43.95	-0.57%	48,641,845
Jun 30, 2025	44.10	44.40	43.95	44.20	44.20	-0.23%	27,637,348
Jun 27, 2025	43.85	44.30	43.60	44.30	44.30	2.43%	49,404,482
Jun 26, 2025	43.80	44.35	43.15	43.25	43.25	-1.26%	81,797,008
Jun 25, 2025	45.45	45.45	43.80	43.80	43.80	-3.42%	96,213,242
Jun 24, 2025	42.50	45.35	42.50	45.35	45.35	-3.51%	132,725,801
Jun 23, 2025	46.50	47.20	46.20	47.00	44.15	-1.36%	74,927,044
Jun 20, 2025	47.30	47.95	46.80	47.65	44.76	-0.21%	65,589,204
Jun 19, 2025	48.40	48.45	47.60	47.75	44.85	-1.14%	51,364,812
Jun 18, 2025	47.70	48.30	47.60	48.30	45.37	1.68%	41,632,395
Jun 17, 2025	48.25	48.80	47.50	47.50	44.62	-1.04%	71,371,503
Jun 16, 2025	47.35	48.00	47.35	48.00	45.09	1.16%	41,273,311
Jun 13, 2025	46.80	47.75	46.80	47.45	44.57	0.32%	44,917,514
Jun 12, 2025	47.25	47.40	46.90	47.30	44.43	0.11%	32,623,511
Jun 11, 2025	46.55	47.25	46.55	47.25	44.38	1.83%	56,732,632
Jun 10, 2025	45.85	46.50	45.80	46.40	43.59	1.64%	47,192,174
Jun 9, 2025	45.00	45.75	44.85	45.65	42.88	1.44%	39,339,158
Jun 6, 2025	45.30	45.75	45.00	45.00	42.27	-0.66%	55,833,077
Jun 5, 2025	45.65	46.05	45.10	45.30	42.55	-1.41%	74,800,745
Jun 4, 2025	47.10	47.25	45.80	45.95	43.16	-2.75%	85,623,252
Jun 3, 2025	46.70	47.30	46.60	47.25	44.38	0.64%	78,049,889
Jun 2, 2025	46.80	46.95	45.90	46.95	44.10	0.43%	77,837,499
May 29, 2025	47.40	48.10	46.75	46.75	43.91	-0.64%	149,194,801
May 28, 2025	46.40	47.45	46.15	47.05	44.20	2.28%	98,207,783
May 27, 2025	47.10	47.60	46.00	46.00	43.21	-2.34%	99,894,392
May 26, 2025	47.80	48.80	47.10	47.10	44.24	-1.98%	79,080,596
May 23, 2025	48.10	49.45	48.05	48.05	45.14	-2.83%	71,795,460