NYSE:UMC | Stock Price History | 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.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$20.48537,668
2026-09-03$19.54424,580
2026-09-02$19.66548,916
2026-09-01$20.471,095,570
2026-08-31$19.97725,659
2026-08-28$20.581,269,588
2026-08-27$19.07$46.929,119,600$18.82723,535
2026-08-26$19.03$46.836,789,300$19.41406,643
2026-08-25$19.60$48.2310,102,900$19.48641,010
2026-08-24$19.05$46.8814,923,000$19.48821,044
2026-08-21$18.34$45.137,302,200$18.38332,544
2026-08-20$18.00$44.2910,509,300$18.03493,466
2026-08-19$18.12$44.5912,432,500$18.68910,910
2026-08-18$18.48$45.4717,417,100$18.481,043,531
2026-08-17$19.53$48.067,972,800$19.38472,841
2026-08-14$19.15$47.127,176,700$18.94368,122
2026-08-13$19.38$47.697,682,300$19.23566,355
2026-08-12$19.31$47.5110,598,500$19.67628,348
2026-08-11$18.94$46.607,547,500$19.19538,098
2026-08-10$18.79$46.249,610,900$19.33680,360
2026-08-07$18.72$46.0613,371,500$18.62963,728
2026-08-06$19.20$47.2411,956,800$18.79929,286
2026-08-05$19.29$47.4715,095,900$19.63904,511
2026-08-04$20.63$50.7620,080,600$19.761,090,460
2026-08-03$18.69$45.9912,063,300$17.60887,770
2026-07-31$19.03$46.8316,738,100$19.911,295,781
2026-07-30$18.94$46.6024,763,000$17.541,490,705
2026-07-29$17.11$42.1024,695,100$17.071,597,806
2026-07-28$17.36$42.7226,577,200$16.891,608,522
2026-07-27$19.08$46.9515,477,300$19.90968,313
2026-07-24$19.48$47.9316,398,900$19.791,071,522
2026-07-23$20.87$51.359,189,500$20.88475,782
2026-07-22$21.29$52.397,356,200$21.00372,588
2026-07-21$21.19$52.1417,368,100$21.47921,369
2026-07-20$20.30$49.9515,356,000$20.71580,983
2026-07-17$21.25$52.2920,772,500
2026-07-16$22.29$54.8520,901,600
2026-07-15$24.92$61.3215,708,500
2026-07-14$23.84$58.6613,175,600
2026-07-13$23.46$57.7321,656,800
2026-07-10$24.34$59.896,715,400
2026-07-09$24.86$61.1711,973,500
2026-07-08$24.73$60.8517,212,400
2026-07-07$23.83$57.6224,568,000
2026-07-06$25.83$62.4613,180,600
2026-07-02$24.54$59.3421,004,300
2026-07-01$25.71$62.1719,750,300
2026-06-30$27.21$65.8014,475,700
2026-06-29$26.84$64.9011,871,400
2026-06-26$25.58$61.8519,297,900
2026-06-25$27.73$67.0520,939,800
2026-06-24$28.01$67.7324,354,600
2026-06-23$26.20$63.3525,943,500
2026-06-22$27.50$66.5026,322,100
2026-06-18$24.08$58.2326,913,600
2026-06-17$21.76$52.6213,622,500
2026-06-16$21.62$52.2816,464,400
2026-06-15$23.08$55.8115,920,000
2026-06-12$21.63$52.3016,400,400
2026-06-11$20.68$50.0120,628,700
2026-06-10$18.90$45.7020,239,000
2026-06-09$19.88$48.0723,741,800
2026-06-08$20.00$48.3616,800,800
2026-06-05$19.70$47.6432,089,700
2026-06-04$20.79$50.2717,539,700
2026-06-03$21.42$51.8016,532,100
2026-06-02$22.46$54.3115,033,100
2026-06-01$22.89$55.3511,503,000
2026-05-29$22.18$53.6314,650,500
2026-05-28$22.68$54.8416,065,900
2026-05-27$22.22$53.7327,433,600
2026-05-26$21.08$50.9726,752,000
2026-05-22$18.22$44.0610,041,700
2026-05-21$18.35$44.3712,137,400
2026-05-20$17.56$42.4613,552,700
2026-05-19$17.58$42.5119,734,400
2026-05-18$17.12$41.4020,562,800
2026-05-15$17.20$41.5915,989,800
2026-05-14$17.13$41.4217,559,800
2026-05-13$15.92$38.5011,526,700
2026-05-12$16.06$38.8319,760,200
2026-05-11$15.59$37.7013,858,600
2026-05-08$15.42$37.2914,785,200
2026-05-07$15.16$36.6616,029,100
2026-05-06$15.23$36.8330,100,100
2026-05-05$14.01$33.8823,357,500
2026-05-04$12.98$31.399,248,300
2026-05-01$13.05$31.568,407,600
2026-04-30$13.06$31.5815,475,600
2026-04-29$12.75$30.8325,368,600
2026-04-28$11.66$28.1912,220,800
2026-04-27$11.69$28.2712,884,400
2026-04-24$12.28$29.6910,979,200
2026-04-23$12.00$29.0210,655,400
2026-04-22$12.71$30.7310,053,700
2026-04-21$12.33$29.8213,172,400
2026-04-20$12.64$30.5622,647,200
2026-04-17$11.66$28.1920,922,400
2026-04-16$10.62$25.6811,609,100
2026-04-15$9.95$24.067,029,300