NYSE · UMC

United Microelectronics Corporation

Technology · Semiconductors

$18.82

Down-$0.63 (-3.24%)

Updated Oct 29, 2026, 12:59 PM

SID Score

7.1/10

Composite research score

Smart Money

58/100

Neutral

Price performance · UMC

UMC price history

1M range · 21 trading sessions · Daily adjusted prices

Prices through Oct 28, 2026

Daily close

View OHLC price history

UMC OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Oct 28, 2026	$19.12	$19.28	$18.62	$18.82	13.76M
Oct 27, 2026	$19.20	$19.49	$18.885	$19.45	10.88M
Oct 26, 2026	$18.91	$19.3451	$18.765	$19.18	7.38M
Oct 23, 2026	$18.66	$19.00	$18.525	$18.89	7.16M
Oct 22, 2026	$19.07	$19.165	$18.31	$18.53	17.61M
Oct 21, 2026	$19.90	$19.98	$19.63	$19.82	8.3M
Oct 20, 2026	$19.50	$19.98	$19.345	$19.67	9.31M
Oct 19, 2026	$20.55	$20.5994	$19.97	$20.08	8.36M
Oct 16, 2026	$20.65	$20.65	$19.74	$19.82	12.92M
Oct 15, 2026	$20.48	$20.97	$20.245	$20.92	14.48M
Oct 14, 2026	$21.85	$22.05	$21.34	$21.40	12.8M
Oct 13, 2026	$21.95	$22.40	$21.80	$22.39	8.71M
Oct 12, 2026	$22.74	$22.74	$22.305	$22.55	7.05M
Oct 9, 2026	$23.19	$23.28	$22.8401	$22.96	5.24M
Oct 8, 2026	$23.14	$23.32	$22.505	$22.82	11.9M
Oct 7, 2026	$22.91	$23.34	$22.85	$23.31	8.06M
Oct 6, 2026	$23.54	$23.67	$23.05	$23.19	15.05M
Oct 5, 2026	$23.82	$24.15	$23.255	$23.92	31.82M
Oct 2, 2026	$25.67	$26.365	$25.52	$26.27	10.2M
Oct 1, 2026	$24.85	$25.34	$24.67	$25.21	7.74M
Sep 30, 2026	$24.45	$24.685	$24.35	$24.49	7.1M