United Microelectronics Corporation (NEW) (UMC)
Showing Closing Date Range from May 3 to Oct 30, 2026 compared to Nov 3, 2025 to May 2, 2026.
Compare Last 6 Months with Previous Period
Investor Relations:umc.com
Current Period Close
$18.04
May 03, 2026 - Oct 30, 2026
Previous Period Close
$13.05
Nov 03, 2025 - May 02, 2026
Net Comparison Delta
+$4.99 (+38.24%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(124 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 29, 2026 | $18.04 | May 01, 2026 | $13.05 | +38.24% |
| Oct 28, 2026 | $18.82 | Apr 30, 2026 | $13.06 | +44.10% |
| Oct 27, 2026 | $19.45 | Apr 29, 2026 | $12.75 | +52.55% |
| Oct 26, 2026 | $19.18 | Apr 28, 2026 | $11.66 | +64.49% |
| Oct 23, 2026 | $18.89 | Apr 27, 2026 | $11.69 | +61.59% |
| Oct 22, 2026 | $18.53 | Apr 24, 2026 | $12.28 | +50.90% |
| Oct 21, 2026 | $19.82 | Apr 23, 2026 | $12.00 | +65.17% |
| Oct 20, 2026 | $19.67 | Apr 22, 2026 | $12.71 | +54.76% |
| Oct 19, 2026 | $20.08 | Apr 21, 2026 | $12.33 | +62.85% |
| Oct 16, 2026 | $19.82 | Apr 20, 2026 | $12.64 | +56.80% |
| Oct 15, 2026 | $20.92 | Apr 17, 2026 | $11.66 | +79.42% |
| Oct 14, 2026 | $21.40 | Apr 16, 2026 | $10.62 | +101.51% |
| Oct 13, 2026 | $22.39 | Apr 15, 2026 | $9.95 | +125.03% |
| Oct 12, 2026 | $22.55 | Apr 14, 2026 | $9.59 | +135.14% |
| Oct 09, 2026 | $22.96 | Apr 13, 2026 | $9.70 | +136.70% |
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