United Microelectronics Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Nov 21, 2025	44.20	45.00	44.20	45.00	45.00	0.78%	36,002,845
Nov 20, 2025	44.90	45.00	44.25	44.65	44.65	0.68%	34,080,310
Nov 19, 2025	44.30	45.20	44.00	44.35	44.35	0.34%	36,291,680
Nov 18, 2025	44.30	44.40	43.80	44.20	44.20	0.80%	37,097,750
Nov 17, 2025	44.05	44.35	43.80	43.85	43.85	-0.68%	24,924,500
Nov 14, 2025	44.35	44.85	44.15	44.15	44.15	-0.67%	33,061,720
Nov 13, 2025	45.00	45.15	44.45	44.45	44.45	-1.22%	39,804,310
Nov 12, 2025	45.20	45.55	44.90	45.00	45.00	-0.55%	33,054,300
Nov 11, 2025	45.60	46.00	45.20	45.25	45.25	0.11%	28,906,290
Nov 10, 2025	45.50	45.65	45.05	45.20	45.20	0.44%	23,076,290
Nov 7, 2025	45.50	45.60	44.90	45.00	45.00	-1.75%	33,482,590
Nov 6, 2025	47.75	47.75	45.80	45.80	45.80	-2.76%	60,793,110
Nov 5, 2025	47.10	47.10	45.75	47.10	47.10	-0.63%	48,250,250
Nov 4, 2025	48.75	48.75	47.15	47.40	47.40	-0.42%	65,466,680
Nov 3, 2025	47.00	48.50	46.80	47.60	47.60	2.59%	96,761,570
Oct 31, 2025	46.20	46.85	46.00	46.40	46.40	1.20%	50,460,800
Oct 30, 2025	45.60	46.20	44.80	45.85	45.85	0.55%	55,850,720
Oct 29, 2025	46.25	46.25	45.60	45.60	45.60	-0.87%	28,822,680
Oct 28, 2025	46.00	46.25	45.80	46.00	46.00	0.88%	44,913,480
Oct 27, 2025	46.05	46.45	45.60	45.60	45.60	0.44%	44,626,130
Oct 23, 2025	45.50	45.50	45.05	45.40	45.40	-0.22%	15,649,530
Oct 22, 2025	45.40	45.70	45.10	45.50	45.50	0.11%	23,785,280
Oct 21, 2025	46.20	46.30	45.45	45.45	45.45	-1.41%	26,102,340
Oct 20, 2025	46.05	46.25	45.85	46.10	46.10	0.77%	33,201,420
Oct 17, 2025	45.30	45.90	45.10	45.75	45.75	1.89%	45,984,310
Oct 16, 2025	44.90	45.30	44.65	44.90	44.90	0.90%	31,651,600
Oct 15, 2025	45.00	45.10	44.30	44.50	44.50	-0.78%	35,815,360
Oct 14, 2025	46.00	46.35	44.85	44.85	44.85	-1.32%	46,680,700
Oct 13, 2025	44.50	45.50	44.25	45.45	45.45	-0.44%	59,654,210
Oct 9, 2025	45.60	46.30	45.50	45.65	45.65	1.56%	72,308,330
Oct 8, 2025	44.50	44.95	44.30	44.95	44.95	1.47%	40,094,960
Oct 7, 2025	43.85	44.35	43.50	44.30	44.30	1.03%	29,966,770
Oct 3, 2025	43.35	43.85	43.20	43.85	43.85	0.11%	41,001,970
Oct 2, 2025	44.45	44.55	43.35	43.80	43.80	-1.02%	62,306,680
Oct 1, 2025	45.80	45.90	44.00	44.25	44.25	-2.85%	80,627,700
Sep 30, 2025	45.55	47.30	45.25	45.55	45.55	1.56%	132,859,000
Sep 26, 2025	44.85	45.30	44.15	44.85	44.85	1.24%	47,727,070
Sep 25, 2025	44.85	45.25	44.05	44.30	44.30	-1.23%	59,196,640
Sep 24, 2025	44.40	45.30	44.10	44.85	44.85	2.16%	86,632,490
Sep 23, 2025	43.55	44.45	43.35	43.90	43.90	1.97%	84,792,610
Sep 22, 2025	43.90	43.95	43.00	43.05	43.05	-0.46%	65,240,650
Sep 19, 2025	42.45	43.40	42.20	43.25	43.25	3.47%	108,454,200
Sep 18, 2025	41.70	42.10	41.65	41.80	41.80	0.84%	38,832,910
Sep 17, 2025	41.10	41.50	41.10	41.45	41.45	0.97%	22,065,700
Sep 16, 2025	41.20	41.50	41.05	41.05	41.05	-0.12%	20,434,100
Sep 15, 2025	41.20	41.45	41.10	41.10	41.10	-0.12%	27,497,720
Sep 12, 2025	41.00	41.30	40.90	41.15	41.15	0.61%	25,468,460
Sep 11, 2025	41.25	41.40	40.90	40.90	40.90	-0.85%	22,457,570
Sep 10, 2025	41.45	41.50	41.10	41.25	41.25	-0.48%	22,731,240
Sep 9, 2025	41.60	41.75	41.40	41.45	41.45	-0.36%	17,679,770