NYSE:UMC | Historical Stock Price | UNITED MICROELECTRONICS CORP

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2000-09-19 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.60$3.35$7.03$14.75$30.95$64.952000-09-192026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2005

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2005-12-30$4.28$4.432,834,646
2005-12-29$4.36$4.512,779,496
2005-12-28$4.43$4.583,575,636
2005-12-27$4.47$4.622,529,464
2005-12-23$4.53$4.684,731,088
2005-12-22$4.31$4.451,994,065
2005-12-21$4.31$4.4510,180,946
2005-12-20$4.27$4.415,929,961
2005-12-19$4.27$4.413,058,961
2005-12-16$4.32$4.474,625,888
2005-12-15$4.28$4.433,526,533
2005-12-14$4.24$4.383,893,567
2005-12-13$4.34$4.484,602,284
2005-12-12$4.36$4.511,395,795
2005-12-09$4.39$4.542,338,516
2005-12-08$4.46$4.614,397,857
2005-12-07$4.54$4.695,505,518
2005-12-06$4.57$4.727,702,188
2005-12-05$4.53$4.685,908,469
2005-12-02$4.42$4.572,972,994
2005-12-01$4.38$4.527,172,909
2005-11-30$4.24$4.384,812,902
2005-11-29$4.20$4.342,367,293
2005-11-28$4.28$4.432,804,120
2005-11-25$4.43$4.585,374,236
2005-11-23$4.38$4.5216,727,391
2005-11-22$4.09$4.2310,891,994
2005-11-21$4.16$4.302,438,106
2005-11-18$4.19$4.333,604,049
2005-11-17$4.20$4.342,477,447
2005-11-16$4.16$4.301,917,205
2005-11-15$4.17$4.314,626,471
2005-11-14$4.34$4.481,584,849
2005-11-11$4.36$4.512,403,646
2005-11-10$4.30$4.444,110,816
2005-11-09$4.21$4.355,499,617
2005-11-08$3.98$4.114,395,672
2005-11-07$3.99$4.133,847,743
2005-11-04$4.01$4.142,044,334
2005-11-03$4.04$4.175,189,335
2005-11-02$4.10$4.243,654,682
2005-11-01$3.90$4.032,171,390
2005-10-31$4.01$4.142,840,693
2005-10-28$3.91$4.043,977,349
2005-10-27$3.84$3.978,417,534
2005-10-26$4.04$4.172,981,299
2005-10-25$4.17$4.311,876,918
2005-10-24$4.27$4.412,942,542
2005-10-21$4.28$4.431,324,617
2005-10-20$4.26$4.402,007,543
2005-10-19$4.35$4.505,945,114
2005-10-18$4.41$4.551,079,029
2005-10-17$4.43$4.58668,938
2005-10-14$4.46$4.614,210,843
2005-10-13$4.42$4.573,305,569
2005-10-12$4.39$4.542,842,150
2005-10-11$4.49$4.644,526,589
2005-10-10$4.63$4.781,830,874
2005-10-07$4.68$4.842,688,575
2005-10-06$4.74$4.893,045,265
2005-10-05$4.85$5.013,327,207
2005-10-04$4.98$5.152,949,900
2005-10-03$4.96$5.123,720,687
2005-09-30$4.94$5.115,616,182
2005-09-29$4.71$4.865,232,318
2005-09-28$4.41$4.556,798,662
2005-09-27$4.47$4.622,267,629
2005-09-26$4.57$4.721,923,471
2005-09-23$4.53$4.682,390,970
2005-09-22$4.64$4.792,554,452
2005-09-21$4.61$4.771,085,659
2005-09-20$4.76$4.921,211,403
2005-09-19$4.71$4.861,856,154
2005-09-16$4.82$4.981,327,750
2005-09-15$4.75$4.911,930,028
2005-09-14$4.72$4.884,260,821
2005-09-13$4.79$4.952,605,595
2005-09-12$4.94$5.111,854,770
2005-09-09$4.89$5.052,440,947
2005-09-08$4.91$5.082,277,027
2005-09-07$4.93$5.093,468,469
2005-09-06$4.80$4.962,069,177
2005-09-02$4.72$4.88753,084
2005-09-01$4.74$4.892,967,166
2005-08-31$4.68$4.841,207,834
2005-08-30$4.67$4.821,019,144
2005-08-29$4.67$4.821,442,712
2005-08-26$4.83$4.992,159,224
2005-08-25$4.80$4.961,714,528
2005-08-24$4.80$4.961,207,761
2005-08-23$4.91$5.082,125,056
2005-08-22$4.90$5.063,273,295
2005-08-19$4.86$5.021,791,388
2005-08-18$4.91$5.08809,764
2005-08-17$5.08$5.251,136,000
2005-08-16$5.06$5.232,106,697
2005-08-15$5.13$5.30934,853
2005-08-12$5.19$5.36739,897
2005-08-11$5.28$5.461,866,645
2005-08-10$5.27$5.451,537,931
2005-08-09$5.06$5.233,342,069
2005-08-08$5.01$5.185,877,142
2005-08-05$5.01$5.184,875,702
2005-08-04$5.12$5.293,782,175
2005-08-03$5.27$5.452,444,881
2005-08-02$5.19$5.363,261,202
2005-08-01$5.48$5.643,312,854
2005-07-29$5.28$5.443,662,768
2005-07-28$5.37$5.521,831,676
2005-07-27$5.28$5.444,432,754
2005-07-26$5.48$5.646,118,141
2005-07-25$5.68$5.851,820,748
2005-07-22$5.79$5.961,484,166
2005-07-21$5.89$6.061,981,170
2005-07-20$5.93$6.104,035,413
2005-07-19$6.04$6.221,026,720
2005-07-18$5.94$6.121,143,941
2005-07-15$5.96$6.131,757,802
2005-07-14$6.08$6.261,668,339
2005-07-13$6.00$6.171,299,993
2005-07-12$6.04$6.223,532,580
2005-07-11$5.86$6.031,213,953
2005-07-08$5.75$5.921,618,361
2005-07-07$5.67$5.831,527,513
2005-07-06$5.74$5.903,271,838
2005-07-05$5.66$5.822,321,541
2005-07-01$5.71$5.88925,964
2005-06-30$5.64$5.813,251,731
2005-06-29$5.63$5.792,037,777
2005-06-28$5.67$5.831,858,631
2005-06-27$5.57$5.742,251,456
2005-06-24$5.68$5.851,414,737
2005-06-23$5.81$5.981,618,653
2005-06-22$5.87$6.051,889,011
2005-06-21$5.86$6.031,714,236
2005-06-20$5.89$6.062,049,215
2005-06-17$5.85$6.024,053,553
2005-06-16$5.70$5.862,605,377
2005-06-15$5.48$5.647,643,177
2005-06-14$5.48$5.644,627,637
2005-06-13$5.60$5.761,215,993
2005-06-10$5.66$5.821,804,939
2005-06-09$5.70$5.864,689,780
2005-06-08$5.64$5.813,424,830
2005-06-07$5.50$5.665,923,404
2005-06-06$5.42$5.584,034,393
2005-06-03$5.38$5.543,696,427
2005-06-02$5.30$5.453,280,362
2005-06-01$5.20$5.353,085,042
2005-05-31$5.13$5.282,217,652
2005-05-27$5.16$5.311,175,268
2005-05-26$5.16$5.311,303,563
2005-05-25$5.04$5.181,264,076
2005-05-24$5.11$5.252,333,853
2005-05-23$4.94$5.091,365,706
2005-05-20$5.04$5.18862,436
2005-05-19$5.05$5.202,379,750
2005-05-18$4.97$5.112,462,075
2005-05-17$4.89$5.032,420,767
2005-05-16$4.86$5.003,515,022
2005-05-13$4.78$4.924,074,389
2005-05-12$4.63$4.761,377,436
2005-05-11$4.63$4.761,498,299
2005-05-10$4.65$4.792,308,573
2005-05-09$4.76$4.901,618,070
2005-05-06$4.85$4.992,566,109
2005-05-05$4.74$4.872,847,395
2005-05-04$4.63$4.761,630,164
2005-05-03$4.50$4.63433,258
2005-05-02$4.54$4.681,127,185
2005-04-29$4.46$4.591,041,801
2005-04-28$4.43$4.56743,904
2005-04-27$4.49$4.622,059,196
2005-04-26$4.53$4.662,049,725
2005-04-25$4.43$4.561,077,135
2005-04-22$4.41$4.532,110,922
2005-04-21$4.42$4.552,351,556
2005-04-20$4.26$4.382,479,122
2005-04-19$4.36$4.491,480,377
2005-04-18$4.26$4.381,480,742
2005-04-15$4.35$4.481,918,808
2005-04-14$4.45$4.581,379,913
2005-04-13$4.50$4.63714,982
2005-04-12$4.56$4.69814,062
2005-04-11$4.56$4.691,007,779
2005-04-08$4.60$4.732,883,093
2005-04-07$4.57$4.701,596,870
2005-04-06$4.54$4.681,535,964
2005-04-05$4.52$4.65507,058
2005-04-04$4.52$4.65959,331
2005-04-01$4.57$4.701,522,924
2005-03-31$4.63$4.762,311,123
2005-03-30$4.47$4.611,758,240
2005-03-29$4.36$4.491,730,628
2005-03-28$4.53$4.66829,142
2005-03-24$4.56$4.691,374,157
2005-03-23$4.50$4.631,598,837
2005-03-22$4.47$4.613,426,068
2005-03-21$4.57$4.702,167,675
2005-03-18$4.60$4.732,513,582
2005-03-17$4.71$4.852,256,264
2005-03-16$4.75$4.891,894,839
2005-03-15$4.80$4.942,460,253
2005-03-14$4.91$5.061,756,200
2005-03-11$4.91$5.064,208,731
2005-03-10$4.93$5.074,222,645
2005-03-09$4.93$5.071,568,093
2005-03-08$4.96$5.103,942,671
2005-03-07$5.06$5.213,411,352
2005-03-04$4.98$5.132,758,004
2005-03-03$5.00$5.143,373,833
2005-03-02$5.01$5.162,566,838
2005-03-01$5.12$5.273,092,546
2005-02-28$5.08$5.231,354,341
2005-02-25$5.19$5.342,579,514
2005-02-24$5.01$5.161,740,318
2005-02-23$4.96$5.102,679,979
2005-02-22$4.82$4.963,024,501
2005-02-18$4.98$5.131,942,121
2005-02-17$4.85$4.996,958,065
2005-02-16$4.98$5.131,762,902
2005-02-15$5.09$5.242,073,257
2005-02-14$5.12$5.272,965,782
2005-02-11$5.04$5.185,266,924
2005-02-10$4.89$5.03871,106
2005-02-09$4.85$4.99818,652
2005-02-08$4.96$5.10928,951
2005-02-07$4.93$5.071,424,426
2005-02-04$4.94$5.092,842,077
2005-02-03$4.82$4.962,888,047
2005-02-02$4.83$4.975,051,424
2005-02-01$4.93$5.075,949,995
2005-01-31$4.85$4.995,556,661
2005-01-28$4.52$4.651,157,273
2005-01-27$4.60$4.732,459,233
2005-01-26$4.56$4.691,723,707
2005-01-25$4.49$4.621,016,230
2005-01-24$4.43$4.56908,043
2005-01-21$4.50$4.631,551,701
2005-01-20$4.56$4.699,265,618
2005-01-19$4.46$4.591,230,345
2005-01-18$4.60$4.732,084,112
2005-01-14$4.47$4.618,499,421
2005-01-13$4.34$4.464,275,318
2005-01-12$4.46$4.597,310,821
2005-01-11$4.50$4.631,052,510
2005-01-10$4.58$4.725,337,883
2005-01-07$4.60$4.733,404,795
2005-01-06$4.57$4.707,922,642
2005-01-05$4.53$4.6610,040,121
2005-01-04$4.64$4.775,030,369
2005-01-03$4.76$4.901,582,445