United Microelectronics Corp (UMC) stock
UMCNYSESemiconductors & Related DevicesFiscal year ends December 31
$16.68−1.36 (-7.54%)
Close on Oct 30, 2026Market cap $41.99BP/E 33.2Yield –
Price history
United Microelectronics share prices for every month, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 30, 2026
$16.68
-7.54% on the day
52-week range
$6.97 – $28.96
-42.4% from the high
Change over 52 weeks
+121.5%
From $7.53 on Oct 30, 2025
Average volume
13.21M
Shares a day, last 90 sessions
| Month | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 2026 | $24.85 | $26.37 | $16.27 | $16.68 | -31.89% | 265,494,799 |
| Sep 2026 | $20.43 | $25.80 | $19.45 | $24.49 | +23.19% | 235,734,247 |
| Aug 2026 | $17.69 | $20.85 | $17.49 | $19.88 | +4.47% | 240,446,834 |
| Jul 2026 | $26.39 | $26.78 | $16.54 | $19.03 | -30.06% | 380,551,156 |
| Jun 2026 | $22.97 | $28.96 | $18.70 | $27.21 | +22.68% | 406,651,210 |
| May 2026 | $13.03 | $23.69 | $12.89 | $22.18 | +69.83% | 341,557,710 |
| Apr 2026 | $9.01 | $13.39 | $8.29 | $13.06 | +45.43% | 250,041,432 |
| Mar 2026 | $10.27 | $10.53 | $8.59 | $8.98 | -13.98% | 184,135,462 |
| Feb 2026 | $9.77 | $11.04 | $9.65 | $10.44 | +2.55% | 164,569,639 |
| Jan 2026 | $7.85 | $12.68 | $7.70 | $10.18 | +29.52% | 301,690,413 |
| Dec 2025 | $7.49 | $8.17 | $7.48 | $7.86 | +5.36% | 173,916,426 |
| Nov 2025 | $7.82 | $7.90 | $6.97 | $7.46 | -3.24% | 157,955,110 |
| Oct 2025 | $7.41 | $7.85 | $7.18 | $7.71 | +1.72% | 183,705,332 |
| Sep 2025 | $6.59 | $7.66 | $6.56 | $7.58 | +15.20% | 122,464,574 |
| Aug 2025 | $6.89 | $7.24 | $6.58 | $6.58 | -3.80% | 142,125,157 |
| Jul 2025 | $7.59 | $7.87 | $6.80 | $6.84 | -10.59% | 157,164,610 |
| Jun 2025 | $7.66 | $8.33 | $7.50 | $7.65 | +0.53% | 190,148,678 |
| May 2025 | $7.06 | $8.16 | $6.98 | $7.61 | +8.10% | 217,199,268 |
| Apr 2025 | $6.92 | $7.19 | $5.71 | $7.04 | -1.54% | 320,817,178 |
| Mar 2025 | $6.51 | $7.87 | $6.37 | $7.15 | +10.85% | 343,046,527 |
| Feb 2025 | $5.92 | $6.63 | $5.89 | $6.45 | +11.59% | 261,572,621 |
| Jan 2025 | $6.60 | $6.76 | $5.61 | $5.78 | -10.94% | 244,990,809 |
| Dec 2024 | $6.79 | $6.88 | $6.31 | $6.49 | -3.85% | 238,435,391 |
| Nov 2024 | $7.01 | $7.30 | $6.63 | $6.75 | -1.32% | 237,502,693 |
| Oct 2024 | $8.42 | $8.46 | $6.78 | $6.84 | -18.76% | 261,004,734 |
| Sep 2024 | $8.60 | $8.86 | $8.20 | $8.42 | -3.99% | 272,159,621 |
| Aug 2024 | $8.21 | $8.95 | $7.38 | $8.77 | +4.78% | 311,166,390 |
| Jul 2024 | $8.84 | $8.85 | $7.38 | $8.37 | -4.45% | 310,503,344 |
| Jun 2024 | $8.50 | $9.00 | $8.20 | $8.76 | +3.06% | 152,033,452 |
| May 2024 | $7.70 | $8.89 | $7.53 | $8.50 | +10.39% | 169,787,438 |
| Apr 2024 | $8.06 | $8.32 | $7.35 | $7.70 | -4.82% | 192,632,631 |
| Mar 2024 | $7.68 | $8.49 | $7.59 | $8.09 | +5.34% | 161,466,380 |
| Feb 2024 | $7.76 | $8.20 | $7.48 | $7.68 | -0.39% | 133,125,593 |
| Jan 2024 | $8.32 | $8.43 | $7.46 | $7.71 | -8.87% | 171,941,476 |
| Dec 2023 | $7.82 | $8.68 | $7.67 | $8.46 | +8.60% | 120,165,746 |
| Nov 2023 | $7.16 | $7.99 | $7.15 | $7.79 | +9.41% | 127,364,125 |
| Oct 2023 | $7.06 | $7.69 | $6.81 | $7.12 | +0.85% | 145,766,316 |
| Sep 2023 | $7.25 | $7.44 | $6.84 | $7.06 | -1.53% | 113,187,375 |
| Aug 2023 | $7.49 | $7.51 | $6.71 | $7.17 | -4.53% | 129,262,281 |
| Jul 2023 | $7.86 | $7.97 | $7.12 | $7.51 | -4.82% | 128,907,811 |
| Jun 2023 | $8.25 | $8.97 | $7.75 | $7.89 | -4.48% | 127,291,582 |
| May 2023 | $8.00 | $8.70 | $7.75 | $8.26 | +2.86% | 150,070,805 |
| Apr 2023 | $8.75 | $8.78 | $7.58 | $8.03 | -8.33% | 118,826,437 |
| Mar 2023 | $8.29 | $8.96 | $8.13 | $8.76 | +7.75% | 158,903,491 |
| Feb 2023 | $8.17 | $8.67 | $8.00 | $8.13 | 0.00% | 158,585,778 |
| Jan 2023 | $6.72 | $8.16 | $6.57 | $8.13 | +24.50% | 158,202,227 |
| Dec 2022 | $7.48 | $7.50 | $6.48 | $6.53 | -13.40% | 153,845,949 |
| Nov 2022 | $6.03 | $7.69 | $5.82 | $7.54 | +27.15% | 233,349,737 |
| Oct 2022 | $5.61 | $6.33 | $5.36 | $5.93 | +6.46% | 248,242,459 |
| Sep 2022 | $6.53 | $6.66 | $5.55 | $5.57 | -15.99% | 151,405,328 |
| Aug 2022 | $6.78 | $7.32 | $6.48 | $6.63 | -2.79% | 170,378,982 |
| Jul 2022 | $6.58 | $7.35 | $6.24 | $6.82 | +0.74% | 201,910,429 |
| Jun 2022 | $8.85 | $9.10 | $6.58 | $6.77 | -23.16% | 186,496,389 |
| May 2022 | $7.98 | $8.85 | $7.75 | $8.81 | +10.68% | 169,012,384 |
| Apr 2022 | $9.20 | $9.22 | $7.49 | $7.96 | -12.72% | 196,308,351 |
| Mar 2022 | $9.48 | $9.68 | $8.55 | $9.12 | -1.72% | 241,973,510 |
| Feb 2022 | $9.94 | $10.26 | $8.76 | $9.28 | -5.60% | 188,792,623 |
| Jan 2022 | $11.64 | $11.95 | $9.02 | $9.83 | -15.98% | 229,302,744 |
| Dec 2021 | $12.04 | $12.68 | $10.86 | $11.70 | +0.60% | 149,467,821 |
| Nov 2021 | $10.23 | $11.94 | $10.18 | $11.63 | +13.24% | 152,880,947 |
| Oct 2021 | $11.31 | $11.39 | $10.07 | $10.27 | -10.15% | 187,110,509 |
| Sep 2021 | $11.50 | $12.62 | $11.23 | $11.43 | +0.53% | 131,796,537 |
| Aug 2021 | $10.46 | $11.71 | $9.82 | $11.37 | +7.98% | 170,375,703 |
| Jul 2021 | $9.37 | $10.59 | $8.92 | $10.53 | +11.43% | 151,247,758 |
| Jun 2021 | $9.54 | $9.82 | $9.02 | $9.45 | +0.43% | 114,637,425 |
| May 2021 | $9.62 | $9.78 | $7.90 | $9.41 | -5.14% | 143,109,868 |
| Apr 2021 | $9.06 | $11.25 | $8.82 | $9.92 | +8.89% | 127,841,398 |
| Mar 2021 | $10.10 | $10.14 | $8.02 | $9.11 | -7.04% | 155,429,133 |
| Feb 2021 | $9.32 | $11.28 | $8.95 | $9.80 | +8.29% | 142,245,272 |
| Jan 2021 | $8.22 | $10.61 | $7.85 | $9.05 | +7.35% | 169,248,835 |
| Dec 2020 | $7.37 | $9.40 | $7.20 | $8.43 | +18.23% | 125,769,797 |
| Nov 2020 | $5.46 | $7.29 | $5.19 | $7.13 | +34.53% | 88,950,749 |
| Oct 2020 | $4.89 | $5.91 | $4.81 | $5.30 | +10.65% | 82,131,662 |
| Sep 2020 | $3.62 | $4.97 | $3.43 | $4.79 | +35.31% | 48,101,727 |
| Aug 2020 | $3.93 | $4.69 | $3.44 | $3.54 | -4.32% | 45,807,254 |
| Jul 2020 | $2.64 | $4.10 | $2.64 | $3.70 | +40.15% | 44,430,911 |
| Jun 2020 | $2.55 | $2.94 | $2.53 | $2.64 | +4.35% | 25,701,967 |
| May 2020 | $2.49 | $2.57 | $2.39 | $2.53 | +1.20% | 13,395,561 |
| Apr 2020 | $2.15 | $2.61 | $2.10 | $2.50 | +15.21% | 17,975,077 |
| Mar 2020 | $2.48 | $2.64 | $2.13 | $2.17 | -12.50% | 34,929,820 |
| Feb 2020 | $2.44 | $2.85 | $2.39 | $2.48 | +2.48% | 16,603,569 |
| Jan 2020 | $2.69 | $2.72 | $2.41 | $2.42 | -9.70% | 9,092,088 |
| Dec 2019 | $2.47 | $2.81 | $2.45 | $2.68 | +9.84% | 18,007,198 |
| Nov 2019 | $2.33 | $2.49 | $2.31 | $2.44 | +7.96% | 10,493,746 |
| Oct 2019 | $2.12 | $2.35 | $2.08 | $2.26 | +8.13% | 10,235,030 |
| Sep 2019 | $2.06 | $2.27 | $2.05 | $2.09 | -0.95% | 11,853,252 |
| Aug 2019 | $2.13 | $2.14 | $1.99 | $2.11 | -3.21% | 11,693,455 |
| Jul 2019 | $2.26 | $2.38 | $2.04 | $2.18 | -1.36% | 12,846,460 |
| Jun 2019 | $2.06 | $2.22 | $1.96 | $2.21 | +12.18% | 12,524,415 |
| May 2019 | $2.18 | $2.23 | $1.87 | $1.97 | -9.22% | 10,614,042 |
| Apr 2019 | $1.88 | $2.28 | $1.85 | $2.17 | +15.43% | 11,065,403 |
| Mar 2019 | $1.85 | $1.92 | $1.82 | $1.88 | +1.62% | 12,409,109 |
| Feb 2019 | $1.88 | $1.92 | $1.69 | $1.85 | -2.12% | 13,302,403 |
| Jan 2019 | $1.76 | $1.95 | $1.69 | $1.89 | +5.59% | 15,619,438 |
| Dec 2018 | $1.88 | $1.88 | $1.74 | $1.79 | -1.65% | 23,335,900 |
| Nov 2018 | $1.91 | $1.94 | $1.64 | $1.82 | -3.19% | 33,238,794 |
| Oct 2018 | $2.57 | $2.59 | $1.83 | $1.88 | -27.13% | 26,220,447 |
| Sep 2018 | $2.78 | $2.78 | $2.43 | $2.58 | -7.53% | 16,630,418 |
| Aug 2018 | $2.80 | $2.89 | $2.69 | $2.79 | -0.36% | 20,306,612 |
| Jul 2018 | $2.95 | $2.96 | $2.72 | $2.80 | -0.71% | 45,542,369 |
| Jun 2018 | $2.77 | $3.14 | $2.73 | $2.82 | +1.44% | 24,445,078 |
| May 2018 | $2.68 | $2.80 | $2.61 | $2.78 | +4.12% | 9,040,475 |
| Apr 2018 | $2.61 | $2.68 | $2.53 | $2.67 | +3.09% | 16,085,142 |
| Mar 2018 | $2.40 | $2.73 | $2.36 | $2.59 | +7.47% | 26,668,600 |
| Feb 2018 | $2.44 | $2.51 | $2.32 | $2.41 | -1.23% | 19,888,901 |
| Jan 2018 | $2.44 | $2.55 | $2.36 | $2.44 | +2.09% | 21,338,319 |
| Dec 2017 | $2.56 | $2.63 | $2.36 | $2.39 | -6.27% | 24,954,668 |
| Nov 2017 | $2.59 | $2.71 | $2.52 | $2.55 | -1.92% | 16,819,296 |
| Oct 2017 | $2.51 | $2.66 | $2.49 | $2.60 | +4.00% | 28,611,243 |
| Sep 2017 | $2.64 | $2.73 | $2.46 | $2.50 | 0.00% | 36,666,756 |
| Aug 2017 | $2.27 | $2.50 | $2.21 | $2.50 | +10.62% | 31,705,398 |
| Jul 2017 | $2.39 | $2.57 | $2.25 | $2.26 | -7.38% | 58,459,054 |
| Jun 2017 | $2.05 | $2.44 | $1.96 | $2.44 | +18.45% | 47,502,030 |
| May 2017 | $1.94 | $2.09 | $1.93 | $2.06 | +6.19% | 48,808,137 |
| Apr 2017 | $1.97 | $1.98 | $1.89 | $1.94 | +0.52% | 39,450,192 |
| Mar 2017 | $2.03 | $2.03 | $1.93 | $1.93 | -5.39% | 40,011,460 |
| Feb 2017 | $1.81 | $2.07 | $1.81 | $2.04 | +12.71% | 28,879,077 |
| Jan 2017 | $1.76 | $1.89 | $1.76 | $1.81 | +3.43% | 33,887,389 |
| Dec 2016 | $1.81 | $1.85 | $1.74 | $1.75 | -3.85% | 17,992,699 |
| Nov 2016 | $1.91 | $1.93 | $1.78 | $1.82 | -4.21% | 14,359,599 |
| Oct 2016 | $1.85 | $1.92 | $1.82 | $1.90 | +2.70% | 20,596,590 |
| Sep 2016 | $1.88 | $1.93 | $1.82 | $1.85 | -0.54% | 15,742,700 |
| Aug 2016 | $1.91 | $1.97 | $1.83 | $1.86 | -1.59% | 16,303,700 |
| Jul 2016 | $1.98 | $2.11 | $1.88 | $1.89 | -5.03% | 27,212,800 |
| Jun 2016 | $1.87 | $2.02 | $1.87 | $1.99 | +5.85% | 16,988,900 |
| May 2016 | $1.88 | $1.90 | $1.75 | $1.88 | -0.53% | 21,035,100 |
| Apr 2016 | $2.08 | $2.13 | $1.86 | $1.89 | -9.13% | 18,955,300 |
| Mar 2016 | $2.07 | $2.14 | $2.03 | $2.08 | +0.48% | 18,069,800 |
| Feb 2016 | $1.95 | $2.10 | $1.91 | $2.07 | +5.61% | 13,764,300 |
| Jan 2016 | $1.84 | $1.97 | $1.64 | $1.96 | +4.26% | 29,874,600 |
| Dec 2015 | $1.89 | $1.95 | $1.76 | $1.88 | +1.62% | 18,204,700 |
| Nov 2015 | $1.86 | $1.99 | $1.81 | $1.85 | 0.00% | 29,351,200 |
| Oct 2015 | $1.65 | $1.98 | $1.65 | $1.85 | +14.20% | 25,204,700 |
| Sep 2015 | $1.64 | $1.85 | $1.60 | $1.62 | -0.61% | 18,498,300 |
| Aug 2015 | $1.79 | $1.83 | $1.42 | $1.63 | -9.44% | 23,947,500 |
| Jul 2015 | $2.08 | $2.09 | $1.71 | $1.80 | -12.20% | 29,755,800 |
| Jun 2015 | $2.23 | $2.23 | $2.00 | $2.05 | -8.89% | 19,796,400 |
| May 2015 | $2.39 | $2.42 | $2.16 | $2.25 | -7.02% | 26,809,400 |
| Apr 2015 | $2.41 | $2.53 | $2.17 | $2.42 | -0.82% | 20,050,900 |
| Mar 2015 | $2.52 | $2.54 | $2.20 | $2.44 | -2.79% | 14,732,400 |
| Feb 2015 | $2.41 | $2.55 | $2.41 | $2.51 | +5.46% | 14,356,300 |
| Jan 2015 | $2.27 | $2.53 | $2.20 | $2.38 | +4.85% | 24,940,300 |
| Dec 2014 | $2.16 | $2.32 | $2.10 | $2.27 | +5.09% | 10,203,900 |
| Nov 2014 | $2.18 | $2.23 | $2.10 | $2.16 | -1.37% | 9,659,100 |
| Oct 2014 | $1.99 | $2.20 | $1.94 | $2.19 | +10.05% | 19,727,300 |
| Sep 2014 | $2.22 | $2.23 | $1.99 | $1.99 | -10.36% | 13,658,700 |
| Aug 2014 | $2.17 | $2.25 | $2.07 | $2.22 | +1.37% | 35,057,700 |
| Jul 2014 | $2.45 | $2.58 | $2.17 | $2.19 | -9.13% | 20,960,900 |
| Jun 2014 | $2.31 | $2.47 | $2.29 | $2.41 | +4.78% | 20,255,400 |
| May 2014 | $2.20 | $2.32 | $2.12 | $2.30 | +5.50% | 36,843,400 |
| Apr 2014 | $2.09 | $2.19 | $2.04 | $2.18 | +4.81% | 35,938,300 |
| Mar 2014 | $2.02 | $2.10 | $1.99 | $2.08 | +3.48% | 20,068,100 |
| Feb 2014 | $2.01 | $2.02 | $1.95 | $2.01 | -0.50% | 12,686,400 |
| Jan 2014 | $2.02 | $2.17 | $1.98 | $2.02 | -0.98% | 27,953,600 |
| Dec 2013 | $2.01 | $2.04 | $1.95 | $2.04 | +1.49% | 22,247,400 |
| Nov 2013 | $2.04 | $2.06 | $1.91 | $2.01 | -1.95% | 22,278,400 |
| Oct 2013 | $2.06 | $2.17 | $2.03 | $2.05 | -0.49% | 23,627,300 |
| Sep 2013 | $1.95 | $2.13 | $1.94 | $2.06 | +5.10% | 25,422,100 |
| Aug 2013 | $2.21 | $2.21 | $1.88 | $1.96 | -10.91% | 29,145,700 |
| Jul 2013 | $2.40 | $2.44 | $2.05 | $2.20 | -5.58% | 50,243,000 |
| Jun 2013 | $2.19 | $2.38 | $2.01 | $2.33 | +7.37% | 47,677,800 |
| May 2013 | $1.89 | $2.32 | $1.86 | $2.17 | +14.81% | 52,662,900 |
| Apr 2013 | $1.81 | $1.89 | $1.77 | $1.89 | +5.00% | 36,977,300 |
| Mar 2013 | $1.84 | $1.93 | $1.78 | $1.80 | -2.70% | 37,722,800 |
| Feb 2013 | $1.98 | $1.98 | $1.81 | $1.85 | -5.61% | 39,746,500 |
| Jan 2013 | $2.03 | $2.16 | $1.91 | $1.96 | -1.51% | 81,598,300 |
| Dec 2012 | $1.92 | $2.05 | $1.89 | $1.99 | +4.19% | 43,116,800 |
| Nov 2012 | $1.87 | $1.97 | $1.75 | $1.91 | +1.60% | 41,689,000 |
| Oct 2012 | $2.07 | $2.12 | $1.85 | $1.88 | -8.29% | 30,505,300 |
| Sep 2012 | $2.04 | $2.18 | $1.98 | $2.05 | +0.99% | 52,517,500 |
| Aug 2012 | $2.17 | $2.23 | $2.01 | $2.03 | -6.45% | 42,084,500 |
| Jul 2012 | $2.29 | $2.29 | $2.01 | $2.17 | 0.00% | 50,646,300 |
| Jun 2012 | $2.12 | $2.22 | $1.94 | $2.17 | +2.84% | 67,373,300 |
| May 2012 | $2.69 | $2.72 | $2.11 | $2.11 | -21.27% | 80,377,400 |
| Apr 2012 | $2.46 | $2.69 | $2.41 | $2.68 | +9.39% | 67,243,900 |
| Mar 2012 | $2.72 | $2.77 | $2.43 | $2.45 | -9.93% | 67,495,700 |
| Feb 2012 | $2.68 | $2.73 | $2.53 | $2.72 | +0.37% | 71,866,100 |
| Jan 2012 | $2.17 | $2.71 | $2.14 | $2.71 | +26.64% | 69,117,500 |
| Dec 2011 | $2.26 | $2.28 | $1.95 | $2.14 | -6.55% | 41,767,400 |
| Nov 2011 | $2.19 | $2.31 | $1.97 | $2.29 | +2.69% | 50,005,900 |
| Oct 2011 | $1.90 | $2.36 | $1.84 | $2.23 | +16.75% | 65,626,700 |
| Sep 2011 | $2.01 | $2.07 | $1.77 | $1.91 | -4.02% | 56,972,400 |
| Aug 2011 | $2.32 | $2.33 | $1.79 | $1.99 | -13.48% | 99,843,400 |
| Jul 2011 | $2.57 | $2.58 | $2.23 | $2.30 | -10.16% | 69,776,900 |
| Jun 2011 | $2.73 | $2.75 | $2.40 | $2.56 | -5.88% | 73,892,800 |
| May 2011 | $2.83 | $2.85 | $2.54 | $2.72 | -4.23% | 80,753,400 |
| Apr 2011 | $2.73 | $2.89 | $2.63 | $2.84 | +4.03% | 74,240,900 |
| Mar 2011 | $2.88 | $2.96 | $2.49 | $2.73 | -2.50% | 62,989,300 |
| Feb 2011 | $3.19 | $3.45 | $2.80 | $2.80 | -11.95% | 88,802,200 |
| Jan 2011 | $3.16 | $3.52 | $3.04 | $3.18 | +0.63% | 105,734,400 |
| Dec 2010 | $2.93 | $3.28 | $2.92 | $3.16 | +10.88% | 68,525,900 |
| Nov 2010 | $3.09 | $3.32 | $2.85 | $2.85 | -7.77% | 49,916,800 |
| Oct 2010 | $2.85 | $3.09 | $2.59 | $3.09 | +11.15% | 49,714,800 |
| Sep 2010 | $2.59 | $2.80 | $2.50 | $2.78 | +8.17% | 66,605,100 |
| Aug 2010 | $3.06 | $3.20 | $2.50 | $2.57 | -15.18% | 49,861,400 |
| Jul 2010 | $2.90 | $3.26 | $2.85 | $3.03 | +4.12% | 71,928,700 |
| Jun 2010 | $3.26 | $3.38 | $2.85 | $2.91 | -12.08% | 95,467,500 |
| May 2010 | $3.55 | $3.75 | $3.00 | $3.31 | -6.76% | 114,593,300 |
| Apr 2010 | $3.76 | $3.94 | $3.52 | $3.55 | -5.59% | 67,592,100 |
| Mar 2010 | $3.46 | $3.80 | $3.45 | $3.76 | +9.62% | 121,926,900 |
| Feb 2010 | $3.46 | $3.79 | $3.25 | $3.43 | -2.28% | 127,363,700 |
| Jan 2010 | $3.92 | $4.24 | $3.51 | $3.51 | -9.54% | 107,401,400 |
| Dec 2009 | $3.49 | $3.92 | $3.39 | $3.88 | +14.45% | 123,010,300 |
| Nov 2009 | $3.32 | $3.87 | $3.21 | $3.39 | +3.04% | 91,385,900 |
| Oct 2009 | $3.75 | $3.81 | $3.28 | $3.29 | -13.42% | 158,898,000 |
| Sep 2009 | $3.22 | $3.84 | $3.22 | $3.80 | +16.92% | 97,099,500 |
| Aug 2009 | $3.45 | $3.53 | $3.03 | $3.25 | -4.41% | 73,559,800 |
| Jul 2009 | $2.65 | $3.42 | $2.42 | $3.40 | +28.79% | 91,704,000 |
| Jun 2009 | $3.22 | $3.39 | $2.30 | $2.64 | -17.50% | 154,246,000 |
| May 2009 | $3.00 | $3.57 | $2.95 | $3.20 | +4.92% | 112,393,100 |
| Apr 2009 | $2.52 | $3.13 | $2.52 | $3.05 | +20.55% | 134,307,300 |
| Mar 2009 | $1.73 | $2.92 | $1.65 | $2.53 | +42.94% | 111,937,600 |
| Feb 2009 | $1.75 | $2.14 | $1.71 | $1.77 | -2.21% | 59,388,300 |
| Jan 2009 | $1.96 | $2.28 | $1.68 | $1.81 | -7.65% | 78,815,900 |
| Dec 2008 | $1.81 | $2.19 | $1.62 | $1.96 | +6.52% | 117,024,300 |
| Nov 2008 | $2.45 | $2.56 | $1.68 | $1.84 | -24.90% | 146,212,700 |
| Oct 2008 | $2.03 | $2.65 | $1.47 | $2.45 | +25.64% | 195,431,000 |
| Sep 2008 | $2.31 | $2.38 | $1.70 | $1.95 | -16.31% | 157,773,600 |
| Aug 2008 | $2.55 | $2.60 | $2.29 | $2.33 | -9.34% | 99,133,607 |
| Jul 2008 | $2.95 | $2.97 | $2.52 | $2.57 | -11.99% | 117,807,582 |
| Jun 2008 | $3.39 | $3.50 | $2.89 | $2.92 | -15.85% | 99,782,533 |
| May 2008 | $3.39 | $3.77 | $3.11 | $3.47 | +0.29% | 63,319,900 |
| Apr 2008 | $3.28 | $3.50 | $3.11 | $3.46 | +2.36% | 94,453,886 |
| Mar 2008 | $3.17 | $3.59 | $2.79 | $3.38 | +5.63% | 113,839,237 |
| Feb 2008 | $2.99 | $3.39 | $2.69 | $3.20 | +10.34% | 96,441,949 |
| Jan 2008 | $3.51 | $3.51 | $2.75 | $2.90 | -16.18% | 175,928,107 |
| Dec 2007 | $3.47 | $3.60 | $3.16 | $3.46 | +3.90% | 97,547,751 |
| Nov 2007 | $3.65 | $3.72 | $3.16 | $3.33 | -11.67% | 156,267,348 |
| Oct 2007 | $3.57 | $4.45 | $3.53 | $3.77 | +5.01% | 165,431,412 |
| Sep 2007 | $3.26 | $3.66 | $3.16 | $3.59 | +8.79% | 141,923,998 |
| Aug 2007 | $3.22 | $3.32 | $2.85 | $3.30 | +2.17% | 179,659,698 |
| Jul 2007 | $3.46 | $3.78 | $3.16 | $3.23 | -5.56% | 126,010,600 |
| Jun 2007 | $3.35 | $3.63 | $3.32 | $3.42 | +2.40% | 121,209,699 |
| May 2007 | $3.28 | $3.43 | $3.24 | $3.34 | +1.83% | 135,042,202 |
| Apr 2007 | $3.20 | $3.33 | $3.16 | $3.28 | +3.14% | 108,097,501 |
| Mar 2007 | $3.26 | $3.43 | $3.12 | $3.18 | -3.64% | 133,740,404 |
| Feb 2007 | $3.49 | $3.64 | $3.14 | $3.30 | -7.04% | 115,033,697 |
| Jan 2007 | $3.50 | $3.83 | $3.27 | $3.55 | +1.72% | 166,974,303 |
| Dec 2006 | $3.49 | $3.61 | $3.20 | $3.49 | -1.41% | 117,356,804 |
| Nov 2006 | $3.03 | $3.67 | $2.96 | $3.54 | +16.83% | 119,880,899 |
| Oct 2006 | $3.05 | $3.19 | $2.95 | $3.03 | -1.62% | 158,759,501 |
| Sep 2006 | $3.10 | $3.18 | $2.93 | $3.08 | +0.98% | 117,878,898 |
| Aug 2006 | $3.01 | $3.31 | $2.93 | $3.05 | 0.00% | 83,492,000 |
| Jul 2006 | $3.14 | $3.19 | $2.79 | $3.05 | -1.93% | 90,152,097 |
| Jun 2006 | $3.30 | $3.50 | $2.88 | $3.11 | -6.61% | 118,158,396 |
| May 2006 | $3.80 | $3.94 | $3.20 | $3.33 | -11.67% | 124,002,002 |
| Apr 2006 | $3.50 | $3.84 | $3.41 | $3.77 | +10.56% | 105,161,100 |
| Mar 2006 | $3.18 | $3.50 | $3.08 | $3.41 | +8.25% | 99,252,599 |
| Feb 2006 | $3.27 | $3.33 | $2.98 | $3.15 | -3.96% | 147,761,597 |
| Jan 2006 | $3.16 | $3.43 | $3.02 | $3.28 | +5.13% | 165,006,199 |
| Dec 2005 | $3.13 | $3.37 | $3.06 | $3.12 | +0.97% | 125,810,198 |
| Nov 2005 | $2.85 | $3.27 | $2.80 | $3.09 | +5.82% | 127,576,102 |
| Oct 2005 | $3.60 | $3.67 | $2.68 | $2.92 | -18.89% | 91,292,103 |
| Sep 2005 | $3.41 | $3.64 | $3.16 | $3.60 | +5.57% | 78,090,898 |
| Aug 2005 | $3.90 | $4.00 | $3.36 | $3.41 | -11.43% | 71,333,505 |
| Jul 2005 | $4.20 | $4.45 | $3.83 | $3.85 | -6.33% | 64,067,694 |
| Jun 2005 | $3.74 | $4.35 | $3.72 | $4.11 | +9.89% | 93,572,200 |
| May 2005 | $3.29 | $3.78 | $3.26 | $3.74 | +15.08% | 55,976,998 |
| Apr 2005 | $3.42 | $3.45 | $3.01 | $3.25 | -3.56% | 43,533,099 |
| Mar 2005 | $3.71 | $3.77 | $3.17 | $3.37 | -8.92% | 75,798,600 |
| Feb 2005 | $3.54 | $3.79 | $3.27 | $3.70 | +4.82% | 72,917,001 |
| Jan 2005 | $3.54 | $3.55 | $3.15 | $3.53 | 0.00% | 111,744,202 |
| Dec 2004 | $3.53 | $3.71 | $3.30 | $3.53 | +0.86% | 57,214,303 |
| Nov 2004 | $3.42 | $3.86 | $3.38 | $3.50 | 0.00% | 76,157,298 |
| Oct 2004 | $3.49 | $3.65 | $3.15 | $3.50 | +3.55% | 66,440,699 |
| Sep 2004 | $3.85 | $3.89 | $3.31 | $3.38 | -11.05% | 60,465,499 |
| Aug 2004 | $3.64 | $4.08 | $3.46 | $3.80 | +2.70% | 53,901,698 |
| Jul 2004 | $4.36 | $4.36 | $3.41 | $3.70 | -14.15% | 69,183,106 |
| Jun 2004 | $4.90 | $4.91 | $3.91 | $4.31 | -13.80% | 66,086,398 |
| May 2004 | $5.17 | $5.40 | $4.08 | $5.00 | -3.85% | 69,674,898 |
| Apr 2004 | $5.17 | $6.37 | $5.15 | $5.20 | 0.00% | 61,717,703 |
| Mar 2004 | $5.45 | $5.96 | $4.88 | $5.20 | -0.19% | 98,509,400 |
| Feb 2004 | $5.34 | $5.58 | $5.07 | $5.21 | -3.70% | 53,040,802 |
| Jan 2004 | $5.07 | $5.60 | $5.06 | $5.41 | +9.29% | 70,055,904 |
| Dec 2003 | $5.30 | $5.45 | $4.60 | $4.95 | -5.53% | 71,465,903 |
| Nov 2003 | $5.30 | $5.83 | $4.90 | $5.24 | -0.19% | 90,903,503 |
| Oct 2003 | $4.60 | $5.82 | $4.57 | $5.25 | +16.41% | 78,192,803 |
| Sep 2003 | $5.02 | $5.51 | $4.51 | $4.51 | -9.26% | 106,982,702 |
| Aug 2003 | $4.17 | $5.00 | $3.60 | $4.97 | +19.76% | 95,407,299 |
| Jul 2003 | $3.82 | $4.74 | $3.79 | $4.15 | +10.67% | 75,802,804 |
| Jun 2003 | $4.17 | $4.38 | $3.75 | $3.75 | -4.34% | 100,454,902 |
| May 2003 | $3.24 | $3.93 | $3.10 | $3.92 | +20.99% | 86,366,595 |
| Apr 2003 | $3.15 | $3.58 | $3.06 | $3.24 | +7.64% | 79,235,803 |
| Mar 2003 | $3.30 | $3.69 | $2.98 | $3.01 | -6.81% | 62,065,899 |
| Feb 2003 | $3.07 | $3.40 | $2.93 | $3.23 | +5.56% | 56,777,905 |
| Jan 2003 | $3.44 | $3.90 | $3.03 | $3.06 | -8.93% | 66,501,799 |
| Dec 2002 | $4.71 | $4.82 | $3.28 | $3.36 | -25.99% | 51,985,599 |
| Nov 2002 | $4.00 | $4.89 | $4.00 | $4.54 | +9.40% | 67,293,400 |
| Oct 2002 | $3.54 | $4.63 | $2.93 | $4.15 | +17.56% | 91,866,502 |
| Sep 2002 | $4.29 | $4.63 | $3.50 | $3.53 | -21.03% | 53,566,597 |
| Aug 2002 | $5.80 | $5.86 | $4.10 | $4.47 | -24.75% | 77,336,600 |
| Jul 2002 | $7.30 | $8.03 | $5.30 | $5.94 | -19.18% | 91,675,098 |
| Jun 2002 | $8.45 | $8.45 | $7.10 | $7.35 | -13.53% | 57,009,800 |
| May 2002 | $10.12 | $10.44 | $8.28 | $8.50 | -15.84% | 76,557,595 |
| Apr 2002 | $10.60 | $11.52 | $9.62 | $10.10 | -5.16% | 75,830,399 |
| Mar 2002 | $8.45 | $10.71 | $8.45 | $10.65 | +26.04% | 83,246,703 |
| Feb 2002 | $8.64 | $8.84 | $7.37 | $8.45 | -4.20% | 47,958,501 |
| Jan 2002 | $9.59 | $10.13 | $8.15 | $8.82 | -8.12% | 64,777,400 |
| Dec 2001 | $7.80 | $10.41 | $7.80 | $9.60 | +23.23% | 78,988,601 |
| Nov 2001 | $5.75 | $8.10 | $5.66 | $7.79 | +36.67% | 63,156,500 |
| Oct 2001 | $5.25 | $6.49 | $4.25 | $5.70 | +7.14% | 59,810,202 |
| Sep 2001 | $7.50 | $7.72 | $4.42 | $5.32 | -28.97% | 30,605,701 |
| Aug 2001 | $8.75 | $9.14 | $6.78 | $7.49 | -11.26% | 51,817,400 |
| Jul 2001 | $9.00 | $9.17 | $6.75 | $8.44 | -5.17% | 63,106,302 |
| Jun 2001 | $10.15 | $11.17 | $8.60 | $8.90 | -12.40% | 37,943,401 |
| May 2001 | $10.99 | $11.24 | $9.33 | $10.16 | -7.55% | 33,951,499 |
| Apr 2001 | $9.00 | $11.48 | $8.05 | $10.99 | +17.41% | 38,584,200 |
| Mar 2001 | $9.20 | $10.81 | $8.60 | $9.36 | -2.60% | 26,812,500 |
| Feb 2001 | $11.25 | $11.96 | $9.05 | $9.61 | -18.70% | 31,057,101 |
| Jan 2001 | $8.63 | $12.50 | $7.94 | $11.82 | +43.27% | 35,681,300 |
| Dec 2000 | $8.81 | $9.81 | $7.06 | $8.25 | -3.65% | 21,361,501 |
| Nov 2000 | $10.94 | $14.06 | $8.50 | $8.56 | -24.73% | 26,187,300 |
| Oct 2000 | $11.88 | $13.69 | $8.69 | $11.38 | -4.21% | 37,113,499 |
| Sep 2000 | $13.38 | $15.19 | $11.81 | $11.88 | – | 31,659,201 |
Seasonality
UMC return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 2.7% | 2.8% | -0.8% | 6.1% | 9.9% | 5.4% | 2.2% | 0.9% | 4.4% | -5.6% | 9.2% | 1.9% |
| Months up | 6 of 10 | 5 of 10 | 5 of 10 | 6 of 10 | 8 of 10 | 9 of 10 | 6 of 10 | 4 of 10 | 4 of 10 | 6 of 10 | 5 of 9 | 5 of 9 |
| 2026 | 29.5% | 2.6% | -14.0% | 45.4% | 69.8% | 22.7% | -28.8% | 4.5% | 23.2% | -31.9% | ||
| 2025 | -10.9% | 11.6% | 10.9% | -1.5% | 8.1% | 6.9% | -10.6% | -3.8% | 15.2% | 1.7% | -3.2% | 5.4% |
| 2024 | -8.9% | -0.4% | 5.3% | -4.8% | 10.4% | 3.1% | 0.9% | 4.8% | -4.0% | -18.8% | -1.3% | -3.9% |
| 2023 | 24.5% | 0.0% | 7.7% | -8.3% | 2.9% | 2.6% | -4.8% | -4.5% | -1.5% | 0.8% | 9.4% | 8.6% |
| 2022 | -16.0% | -5.6% | -1.7% | -12.7% | 10.7% | -17.8% | 0.7% | -2.8% | -16.0% | 6.5% | 27.1% | -13.4% |
| 2021 | 7.4% | 8.3% | -7.0% | 8.9% | -5.1% | 0.4% | 14.9% | 8.0% | 0.5% | -10.1% | 13.2% | 0.6% |
| 2020 | -9.7% | 2.5% | -12.5% | 15.2% | 1.2% | 4.3% | 47.3% | -4.3% | 35.3% | 10.6% | 34.5% | 18.2% |
| 2019 | 5.6% | -2.1% | 1.6% | 15.4% | -9.2% | 12.2% | 2.8% | -3.2% | -1.0% | 8.1% | 8.0% | 9.8% |
| 2018 | 2.1% | -1.2% | 7.5% | 3.1% | 4.1% | 1.4% | 3.6% | -0.4% | -7.5% | -27.1% | -3.2% | -1.6% |
| 2017 | 3.4% | 12.7% | -5.4% | 0.5% | 6.2% | 18.4% | -4.0% | 10.6% | 0.0% | 4.0% | -1.9% | -6.3% |