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 — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$7.86$19.013,867,900
2025-12-30$7.96$19.252,979,600
2025-12-29$7.97$19.273,628,400
2025-12-26$8.02$19.393,973,000
2025-12-24$8.00$19.345,510,500
2025-12-23$7.97$19.275,376,400
2025-12-22$8.13$19.664,570,100
2025-12-19$8.10$19.5913,175,200
2025-12-18$8.07$19.519,020,600
2025-12-17$8.00$19.3410,217,400
2025-12-16$7.89$19.088,830,700
2025-12-15$7.84$18.966,915,500
2025-12-12$7.87$19.0315,394,700
2025-12-11$7.89$19.088,398,500
2025-12-10$8.00$19.349,227,900
2025-12-09$8.09$19.568,896,800
2025-12-08$8.05$19.478,420,900
2025-12-05$8.02$19.3910,655,200
2025-12-04$7.87$19.039,468,300
2025-12-03$7.85$18.989,272,900
2025-12-02$7.78$18.819,487,100
2025-12-01$7.53$18.216,626,300
2025-11-28$7.46$18.045,488,800
2025-11-26$7.33$17.728,087,500
2025-11-25$7.27$17.586,022,200
2025-11-24$7.44$17.999,730,000
2025-11-21$7.24$17.5111,543,100
2025-11-20$7.12$17.2212,394,800
2025-11-19$7.23$17.488,212,500
2025-11-18$7.06$17.077,756,900
2025-11-17$7.02$16.985,327,600
2025-11-14$7.14$17.275,889,800
2025-11-13$7.11$17.198,149,400
2025-11-12$7.24$17.517,060,000
2025-11-11$7.38$17.857,882,400
2025-11-10$7.43$17.977,134,000
2025-11-07$7.41$17.929,303,400
2025-11-06$7.31$17.6810,936,400
2025-11-05$7.76$18.769,446,500
2025-11-04$7.60$18.3810,109,100
2025-11-03$7.84$18.967,479,800
2025-10-31$7.71$18.6410,153,200
2025-10-30$7.53$18.219,729,600
2025-10-29$7.39$17.8712,481,800
2025-10-28$7.63$18.456,728,000
2025-10-27$7.57$18.308,009,300
2025-10-24$7.54$18.237,439,900
2025-10-23$7.52$18.185,612,100
2025-10-22$7.38$17.857,880,500
2025-10-21$7.45$18.016,136,100
2025-10-20$7.52$18.186,255,000
2025-10-17$7.47$18.064,302,400
2025-10-16$7.43$17.976,062,900
2025-10-15$7.42$17.947,918,000
2025-10-14$7.40$17.896,955,800
2025-10-13$7.64$18.4711,657,500
2025-10-10$7.18$17.3613,243,400
2025-10-09$7.48$18.094,254,200
2025-10-08$7.55$18.266,902,300
2025-10-07$7.29$17.637,424,600
2025-10-06$7.35$17.778,449,900
2025-10-03$7.25$17.535,468,800
2025-10-02$7.29$17.6310,389,000
2025-10-01$7.41$17.9210,250,000
2025-09-30$7.58$18.338,145,300
2025-09-29$7.59$18.3510,447,100
2025-09-26$7.54$18.2313,982,900
2025-09-25$7.45$18.018,468,000
2025-09-24$7.48$18.095,624,400
2025-09-23$7.37$17.826,089,800
2025-09-22$7.26$17.566,847,700
2025-09-19$7.14$17.276,828,800
2025-09-18$6.99$16.907,316,500
2025-09-17$6.90$16.684,454,100
2025-09-16$6.83$16.523,098,800
2025-09-15$6.85$16.565,092,900
2025-09-12$6.76$16.353,153,600
2025-09-11$6.77$16.373,545,600
2025-09-10$6.84$16.543,940,900
2025-09-09$6.87$16.612,941,600
2025-09-08$6.89$16.663,034,500
2025-09-05$6.80$16.444,752,100
2025-09-04$6.88$16.645,165,400
2025-09-03$6.65$16.085,187,900
2025-09-02$6.62$16.014,345,100
2025-08-29$6.58$15.916,937,400
2025-08-28$6.69$16.183,272,200
2025-08-27$6.72$16.253,354,400
2025-08-26$6.74$16.305,551,000
2025-08-25$6.66$16.104,044,300
2025-08-22$6.77$16.378,352,800
2025-08-21$6.74$16.303,758,500
2025-08-20$6.87$16.619,430,200
2025-08-19$6.80$16.449,634,300
2025-08-18$6.81$16.475,480,300
2025-08-15$6.88$16.649,589,100
2025-08-14$6.89$16.669,155,500
2025-08-13$6.84$16.547,099,200
2025-08-12$6.81$16.478,249,000
2025-08-11$6.72$16.256,974,300
2025-08-08$6.73$16.276,532,200
2025-08-07$6.67$16.139,067,300
2025-08-06$6.74$16.303,643,500
2025-08-05$6.81$16.475,312,900
2025-08-04$6.81$16.474,811,500
2025-08-01$6.81$16.4711,873,800
2025-07-31$6.84$16.5411,453,800
2025-07-30$7.10$17.1718,150,900
2025-07-29$7.12$17.2210,681,800
2025-07-28$7.20$17.419,658,600
2025-07-25$7.30$17.655,667,900
2025-07-24$7.32$17.704,695,200
2025-07-23$7.48$18.097,346,300
2025-07-22$7.34$17.755,845,200
2025-07-21$7.50$18.144,885,000
2025-07-18$7.48$18.093,457,700
2025-07-17$7.53$18.216,369,400
2025-07-16$7.44$17.997,904,000
2025-07-15$7.48$18.094,750,400
2025-07-14$7.44$17.997,294,600
2025-07-11$7.50$18.144,105,300
2025-07-10$7.56$18.284,162,500
2025-07-09$7.70$18.625,608,200
2025-07-08$7.64$18.475,059,400
2025-07-07$7.55$18.268,651,500
2025-07-03$7.83$18.934,532,000
2025-07-02$7.86$19.0111,361,500
2025-07-01$7.61$18.405,522,800
2025-06-30$7.65$18.507,032,200
2025-06-27$7.68$18.576,505,400
2025-06-26$7.57$18.306,276,800
2025-06-25$7.66$18.527,362,900
2025-06-24$7.89$19.0811,835,100
2025-06-23$8.12$18.4710,456,900
2025-06-20$8.18$18.609,674,800
2025-06-18$8.27$18.819,915,000
2025-06-17$8.17$18.5810,745,600
2025-06-16$8.32$18.9211,576,700
2025-06-13$8.12$18.4711,264,400
2025-06-12$8.12$18.479,599,900
2025-06-11$7.93$18.039,979,300
2025-06-10$7.89$17.9411,391,200
2025-06-09$7.76$17.6512,162,700
2025-06-06$7.63$17.356,787,800
2025-06-05$7.52$17.1013,592,500
2025-06-04$7.62$17.336,816,200
2025-06-03$7.84$17.8310,520,100
2025-06-02$7.72$17.566,652,700
2025-05-30$7.61$17.319,457,600
2025-05-29$7.70$17.5110,413,000
2025-05-28$7.80$17.748,191,700
2025-05-27$7.74$17.608,547,000
2025-05-23$7.82$17.7812,474,900
2025-05-22$8.07$18.359,764,100
2025-05-21$8.05$18.319,747,000
2025-05-20$7.85$17.853,348,500
2025-05-19$7.92$18.016,735,700
2025-05-16$7.86$17.884,510,200
2025-05-15$7.84$17.836,394,300
2025-05-14$7.74$17.607,295,600
2025-05-13$7.76$17.659,560,500
2025-05-12$7.71$17.5322,172,200
2025-05-09$7.45$16.949,524,600
2025-05-08$7.38$16.788,335,900
2025-05-07$7.47$16.9911,902,400
2025-05-06$7.40$16.8314,970,900
2025-05-05$7.40$16.8310,598,500
2025-05-02$7.35$16.7213,062,400
2025-05-01$7.01$15.947,713,400
2025-04-30$7.04$16.019,762,300
2025-04-29$6.92$15.749,895,300
2025-04-28$6.94$15.788,030,200
2025-04-25$6.88$15.658,572,100
2025-04-24$6.91$15.7215,707,600
2025-04-23$7.02$15.9716,932,100
2025-04-22$6.80$15.4612,442,300
2025-04-21$6.72$15.2810,041,000
2025-04-17$6.81$15.4913,567,300
2025-04-16$6.85$15.5817,461,400
2025-04-15$6.91$15.729,816,700
2025-04-14$6.88$15.6511,207,700
2025-04-11$6.87$15.6213,112,900
2025-04-10$6.54$14.8722,052,400
2025-04-09$6.77$15.4032,483,600
2025-04-08$6.12$13.9221,636,400
2025-04-07$6.13$13.9424,573,400
2025-04-04$6.23$14.1718,958,600
2025-04-03$6.44$14.6516,393,700
2025-04-02$6.72$15.2813,816,100
2025-04-01$6.98$15.8714,352,300
2025-03-31$7.15$16.2650,395,100
2025-03-28$6.55$14.9011,974,100
2025-03-27$6.64$15.1010,801,100
2025-03-26$6.61$15.0312,505,500
2025-03-25$6.72$15.286,752,600
2025-03-24$6.79$15.4412,053,100
2025-03-21$6.71$15.2611,007,400
2025-03-20$6.73$15.318,704,600
2025-03-19$6.86$15.6013,844,900
2025-03-18$6.83$15.5311,124,900
2025-03-17$6.70$15.2411,353,200
2025-03-14$6.79$15.4415,673,100
2025-03-13$6.47$14.7116,240,500
2025-03-12$6.62$15.0613,826,900
2025-03-11$6.67$15.1724,150,600
2025-03-10$6.78$15.4218,930,900
2025-03-07$6.75$15.3520,241,600
2025-03-06$6.66$15.1517,330,200
2025-03-05$6.80$15.4617,196,800
2025-03-04$6.65$15.1216,357,100
2025-03-03$6.42$14.6022,580,600
2025-02-28$6.45$14.6720,398,600
2025-02-27$6.38$14.5115,575,600
2025-02-26$6.60$15.017,803,700
2025-02-25$6.49$14.7618,934,300
2025-02-24$6.51$14.8112,194,300
2025-02-21$6.48$14.7415,620,000
2025-02-20$6.55$14.9014,992,300
2025-02-19$6.47$14.7118,663,400
2025-02-18$6.38$14.5113,650,900
2025-02-14$6.26$14.245,110,400
2025-02-13$6.30$14.3310,592,100
2025-02-12$6.03$13.7117,392,900
2025-02-11$6.07$13.805,861,400
2025-02-10$6.10$13.878,375,300
2025-02-07$6.03$13.7113,880,500
2025-02-06$6.04$13.7411,779,700
2025-02-05$6.05$13.7611,188,600
2025-02-04$6.02$13.6918,000,700
2025-02-03$6.02$13.6921,556,900
2025-01-31$5.78$13.1510,242,300
2025-01-30$5.84$13.289,029,400
2025-01-29$5.74$13.056,700,200
2025-01-28$5.75$13.0811,495,100
2025-01-27$5.70$12.9623,573,100
2025-01-24$5.69$12.9410,410,900
2025-01-23$5.84$13.2813,555,600
2025-01-22$5.72$13.0126,322,300
2025-01-21$6.03$13.7121,978,000
2025-01-17$6.28$14.2810,863,900
2025-01-16$6.21$14.1210,719,200
2025-01-15$6.35$14.448,870,300
2025-01-14$6.30$14.339,475,800
2025-01-13$6.20$14.1011,338,100
2025-01-10$6.15$13.9913,854,200
2025-01-08$6.40$14.567,328,400
2025-01-07$6.39$14.5312,080,200
2025-01-06$6.63$15.0810,617,500
2025-01-03$6.57$14.947,507,900
2025-01-02$6.53$14.859,023,300