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 — 2003

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2003-12-31$6.29$6.471,074,160
2003-12-30$6.27$6.451,727,688
2003-12-29$6.30$6.494,219,845
2003-12-26$6.15$6.33306,386
2003-12-24$6.23$6.41298,675
2003-12-23$6.34$6.531,625,166
2003-12-22$6.23$6.412,049,889
2003-12-19$6.08$6.252,505,454
2003-12-18$6.06$6.246,387,284
2003-12-17$5.91$6.083,757,513
2003-12-16$6.09$6.271,158,899
2003-12-15$6.18$6.361,999,296
2003-12-12$6.19$6.371,231,208
2003-12-11$6.33$6.513,271,812
2003-12-10$6.13$6.301,676,781
2003-12-09$6.21$6.407,313,837
2003-12-08$6.43$6.623,611,716
2003-12-05$6.60$6.791,488,024
2003-12-04$6.71$6.913,203,202
2003-12-03$6.70$6.892,085,059
2003-12-02$6.85$7.052,204,026
2003-12-01$6.76$6.963,034,509
2003-11-28$6.66$6.851,237,974
2003-11-26$6.79$6.983,633,039
2003-11-25$6.67$6.874,743,156
2003-11-24$6.55$6.742,513,480
2003-11-21$6.37$6.551,809,753
2003-11-20$6.27$6.455,895,603
2003-11-19$6.41$6.593,732,177
2003-11-18$6.44$6.632,209,533
2003-11-17$6.51$6.703,073,849
2003-11-14$6.71$6.912,581,303
2003-11-13$6.79$6.983,028,135
2003-11-12$6.85$7.056,078,302
2003-11-11$6.80$7.006,220,479
2003-11-10$6.80$7.003,786,074
2003-11-07$7.14$7.352,760,933
2003-11-06$7.10$7.314,366,114
2003-11-05$7.18$7.398,061,783
2003-11-04$6.81$7.013,063,227
2003-11-03$6.85$7.052,729,303
2003-10-31$6.67$6.873,324,765
2003-10-30$6.88$7.084,165,161
2003-10-29$6.89$7.094,769,120
2003-10-28$6.84$7.045,104,618
2003-10-27$6.47$6.661,787,171
2003-10-24$6.49$6.682,044,538
2003-10-23$6.49$6.683,471,348
2003-10-22$6.60$6.793,347,740
2003-10-21$6.82$7.023,211,463
2003-10-20$6.77$6.971,568,673
2003-10-17$6.67$6.871,729,970
2003-10-16$6.61$6.801,754,204
2003-10-15$6.55$6.742,372,955
2003-10-14$6.49$6.68841,577
2003-10-13$6.57$6.761,809,359
2003-10-10$6.49$6.681,350,568
2003-10-09$6.43$6.622,375,158
2003-10-08$6.32$6.503,100,837
2003-10-07$6.47$6.663,824,077
2003-10-06$6.42$6.611,062,200
2003-10-03$6.38$6.572,908,461
2003-10-02$6.16$6.343,192,816
2003-10-01$5.94$6.112,406,473
2003-09-30$5.73$5.903,067,712
2003-09-29$5.96$6.132,610,494
2003-09-26$5.82$5.992,419,377
2003-09-25$5.87$6.041,780,404
2003-09-24$5.95$6.123,543,263
2003-09-23$6.10$6.283,692,128
2003-09-22$6.04$6.212,827,891
2003-09-19$6.27$6.451,724,147
2003-09-18$6.38$6.573,134,513
2003-09-17$6.42$6.613,778,127
2003-09-16$6.34$6.538,593,512
2003-09-15$6.21$6.4010,177,843
2003-09-12$6.75$6.952,412,138
2003-09-11$6.76$6.963,706,212
2003-09-10$6.57$6.766,014,884
2003-09-09$6.79$6.984,913,108
2003-09-08$6.98$7.185,731,080
2003-09-05$6.61$6.804,224,566
2003-09-04$6.43$6.621,697,396
2003-09-03$6.37$6.554,687,921
2003-09-02$6.48$6.673,438,853
2003-08-29$6.32$6.503,109,335
2003-08-28$6.10$6.287,995,218
2003-08-27$6.13$6.302,923,174
2003-08-26$6.04$6.213,612,109
2003-08-25$6.05$6.232,391,051
2003-08-22$5.97$6.157,036,721
2003-08-21$5.85$6.027,243,338
2003-08-20$5.47$5.621,418,627
2003-08-19$5.44$5.602,714,196
2003-08-18$5.35$5.512,563,206
2003-08-15$5.15$5.301,390,695
2003-08-14$5.31$5.474,571,945
2003-08-13$5.19$5.345,842,336
2003-08-12$4.83$4.972,571,547
2003-08-11$4.70$4.843,860,900
2003-08-08$4.63$4.764,392,944
2003-08-07$4.84$4.985,859,960
2003-08-06$5.01$5.152,360,680
2003-08-05$5.07$5.221,742,716
2003-08-04$5.22$5.38674,615
2003-08-01$5.27$5.43792,559
2003-07-31$5.27$5.432,117,948
2003-07-30$5.22$5.382,538,501
2003-07-29$5.35$5.511,911,803
2003-07-28$5.44$5.601,062,672
2003-07-25$5.44$5.602,136,123
2003-07-24$5.41$5.572,938,438
2003-07-23$5.34$5.491,334,202
2003-07-22$5.35$5.511,451,437
2003-07-21$5.16$5.311,903,620
2003-07-18$5.31$5.471,800,940
2003-07-17$5.30$5.452,977,701
2003-07-16$5.60$5.772,724,504
2003-07-15$5.49$5.652,108,664
2003-07-14$5.63$5.802,128,325
2003-07-11$5.38$5.531,653,918
2003-07-10$5.28$5.432,772,870
2003-07-09$5.65$5.813,477,810
2003-07-08$5.62$5.786,346,265
2003-07-07$5.77$5.946,547,419
2003-07-03$5.10$5.242,023,656
2003-07-02$5.21$5.366,384,974
2003-07-01$4.81$4.952,609,687
2003-06-30$4.58$4.723,584,034
2003-06-27$4.73$4.872,083,478
2003-06-26$4.86$5.002,519,094
2003-06-25$4.88$5.024,037,163
2003-06-24$4.74$4.882,240,932
2003-06-23$4.78$4.925,687,890
2003-06-20$5.13$5.282,367,369
2003-06-19$5.25$5.413,049,150
2003-06-18$5.14$5.294,214,912
2003-06-17$5.21$5.363,126,649
2003-06-16$4.94$5.082,926,886
2003-06-13$4.90$5.043,807,284
2003-06-12$4.97$5.121,864,565
2003-06-11$4.81$4.952,941,208
2003-06-10$5.01$5.161,377,228
2003-06-09$4.90$5.042,818,207
2003-06-06$5.10$5.246,768,869
2003-06-05$4.97$5.124,741,367
2003-06-04$5.01$5.163,803,193
2003-06-03$4.77$4.908,286,775
2003-06-02$5.02$5.179,962,625
2003-05-30$4.79$4.935,973,417
2003-05-29$4.46$4.595,984,956
2003-05-28$4.34$4.464,195,272
2003-05-27$4.25$4.384,159,673
2003-05-23$4.06$4.181,806,707
2003-05-22$4.06$4.185,846,325
2003-05-21$3.96$4.071,809,407
2003-05-20$4.06$4.182,345,273
2003-05-19$4.00$4.113,366,594
2003-05-16$4.28$4.402,286,433
2003-05-15$4.40$4.534,646,928
2003-05-14$4.31$4.442,951,273
2003-05-13$4.22$4.343,150,055
2003-05-12$4.18$4.302,162,696
2003-05-09$4.20$4.332,198,540
2003-05-08$3.92$4.041,670,449
2003-05-07$4.04$4.162,985,890
2003-05-06$4.12$4.244,070,307
2003-05-05$4.20$4.332,704,618
2003-05-02$4.25$4.383,741,651
2003-05-01$4.01$4.122,623,027
2003-04-30$3.96$4.077,313,410
2003-04-29$4.33$4.457,435,347
2003-04-28$3.92$4.044,389,306
2003-04-25$3.84$3.953,710,554
2003-04-24$4.02$4.143,102,917
2003-04-23$4.31$4.441,595,650
2003-04-22$4.34$4.463,442,211
2003-04-21$4.23$4.351,047,509
2003-04-17$4.24$4.362,380,463
2003-04-16$4.17$4.293,398,347
2003-04-15$4.03$4.152,342,327
2003-04-14$4.09$4.211,946,320
2003-04-11$3.98$4.10950,860
2003-04-10$4.06$4.18997,834
2003-04-09$4.08$4.204,063,842
2003-04-08$4.11$4.234,826,887
2003-04-07$4.25$4.384,908,396
2003-04-04$4.01$4.121,173,619
2003-04-03$3.98$4.101,337,537
2003-04-02$3.95$4.062,090,352
2003-04-01$3.79$3.902,390,202
2003-03-31$3.68$3.793,367,167
2003-03-28$4.01$4.121,008,472
2003-03-27$4.11$4.231,999,596
2003-03-26$4.11$4.231,404,398
2003-03-25$4.17$4.292,279,149
2003-03-24$4.11$4.232,808,796
2003-03-21$4.51$4.643,528,631
2003-03-20$4.41$4.542,333,816
2003-03-19$4.29$4.412,810,678
2003-03-18$4.37$4.504,024,724
2003-03-17$4.19$4.314,407,310
2003-03-14$4.02$4.143,087,204
2003-03-13$4.12$4.242,916,984
2003-03-12$3.79$3.903,405,385
2003-03-11$3.76$3.871,773,236
2003-03-10$3.71$3.822,000,578
2003-03-07$3.71$3.822,715,011
2003-03-06$3.76$3.871,558,742
2003-03-05$3.86$3.97606,655
2003-03-04$3.93$4.051,239,661
2003-03-03$3.93$4.051,516,432
2003-02-28$3.95$4.06737,348
2003-02-27$3.90$4.011,347,603
2003-02-26$3.81$3.921,701,465
2003-02-25$3.97$4.093,833,063
2003-02-24$4.08$4.204,127,347
2003-02-21$4.06$4.181,468,149
2003-02-20$4.06$4.184,839,244
2003-02-19$3.84$3.951,454,891
2003-02-18$3.97$4.091,777,737
2003-02-14$3.91$4.022,901,762
2003-02-13$3.64$3.752,342,982
2003-02-12$3.75$3.861,694,018
2003-02-11$3.75$3.865,153,988
2003-02-10$3.62$3.722,389,711
2003-02-07$3.65$3.761,806,952
2003-02-06$3.67$3.773,253,251
2003-02-05$3.90$4.012,706,664
2003-02-04$3.82$3.941,847,380
2003-02-03$3.86$3.971,081,553
2003-01-31$3.74$3.852,294,617
2003-01-30$3.81$3.922,606,741
2003-01-29$3.92$4.047,988,480
2003-01-28$3.79$3.904,185,042
2003-01-27$4.04$4.161,324,689
2003-01-24$4.11$4.231,497,855
2003-01-23$4.35$4.481,991,903
2003-01-22$4.17$4.292,038,386
2003-01-21$4.14$4.261,743,856
2003-01-17$4.18$4.303,666,525
2003-01-16$4.30$4.433,307,181
2003-01-15$4.59$4.732,410,906
2003-01-14$4.52$4.652,489,060
2003-01-13$4.70$4.842,020,709
2003-01-10$4.53$4.675,283,044
2003-01-09$4.52$4.652,463,773
2003-01-08$4.34$4.461,819,882
2003-01-07$4.55$4.681,340,320
2003-01-06$4.59$4.731,410,045
2003-01-03$4.48$4.621,034,742
2003-01-02$4.28$4.401,505,057