Stock listing
TWSE:2421 Sunonwealth Electric Machine Industry Co., Ltd. (建準) 股價
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Share price · TWSE:2421
$144.00 TWD -15.50 (-9.7%)
Close on Oct 30, 2026
- Day range
- $144.00 – $154.00 TWDOct 30, 2026
- Volume
- 3.77M sharesOct 30, 2026
- Market cap
- $41.19B TWDAt the close on Oct 30, 2026 · price × 286.0M shares outstanding
- 52-week range
- $118.50 – $195.00 TWDLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
- Traded on an average day
- $521.9M TWDMedian day 1.91M shares · 1 day with no trades · last 3 months, Jul 30, 2026 – Oct 30, 2026
Daily closes
Last 3 months, Jul 30, 2026 – Oct 30, 2026 · TWSE:2421 · TWD, adjusted for splits
| Day | Close | Change | % | Open | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| $144.00 | -15.50 | -9.7% | $152.50 | $154.00 | $144.00 | 3,773,489 | |
| $159.50 | +5.00 | +3.2% | $154.00 | $162.00 | $152.50 | 2,651,771 | |
| $154.50 | +0.50 | +0.3% | $157.50 | $158.00 | $154.00 | 924,494 | |
| $154.00 | -1.00 | -0.6% | $156.00 | $158.00 | $151.00 | 1,665,912 | |
| $155.00 | 0.00 | 0.0% | $155.00 | $155.00 | $155.00 | 0 | |
| $155.00 | -4.50 | -2.8% | $161.00 | $162.50 | $154.00 | 1,855,115 | |
| $159.50 | +1.50 | +0.9% | $161.00 | $163.00 | $158.00 | 1,528,343 | |
| $158.00 | -3.50 | -2.2% | $161.50 | $163.50 | $158.00 | 1,495,855 | |
| $161.50 | -4.50 | -2.7% | $163.50 | $165.00 | $160.50 | 1,196,078 | |
| $166.00 | +2.00 | +1.2% | $165.00 | $169.50 | $165.00 | 1,155,609 | |
| $164.00 | -7.00 | -4.1% | $166.00 | $168.00 | $162.00 | 1,849,807 | |
| $171.00 | +3.00 | +1.8% | $169.50 | $171.50 | $167.50 | 1,543,358 | |
| $168.00 | -0.50 | -0.3% | $166.50 | $170.00 | $166.00 | 1,141,127 | |
| $168.50 | +0.50 | +0.3% | $168.00 | $170.00 | $166.00 | 1,201,595 | |
| $168.00 | -3.50 | -2.0% | $171.00 | $172.00 | $167.00 | 1,728,064 | |
| $171.50 | -1.50 | -0.9% | $171.50 | $173.50 | $168.50 | 1,872,500 | |
| $173.00 | +3.50 | +2.1% | $171.50 | $176.00 | $167.50 | 3,627,561 | |
| $169.50 | +3.50 | +2.1% | $167.00 | $172.00 | $167.00 | 3,536,920 | |
| $166.00 | +2.00 | +1.2% | $163.50 | $168.00 | $161.50 | 1,671,655 | |
| $164.00 | +3.50 | +2.2% | $162.00 | $164.50 | $160.50 | 1,466,368 | |
| $160.50 | -3.00 | -1.8% | $164.50 | $165.50 | $160.00 | 2,515,741 | |
| $163.50 | -3.50 | -2.1% | $165.50 | $165.50 | $161.00 | 1,700,904 | |
| $167.00 | +4.00 | +2.5% | $163.00 | $168.00 | $161.50 | 1,807,089 | |
| $163.00 | -4.00 | -2.4% | $168.50 | $169.00 | $163.00 | 1,660,077 | |
| $167.00 | +0.50 | +0.3% | $168.50 | $170.50 | $167.00 | 1,782,613 | |
| $166.50 | -0.50 | -0.3% | $170.50 | $170.50 | $166.00 | 1,408,386 | |
| $167.00 | +5.00 | +3.1% | $164.50 | $169.00 | $164.50 | 3,183,771 | |
| $162.00 | +1.50 | +0.9% | $161.00 | $166.50 | $161.00 | 2,138,777 | |
| $160.50 | +2.50 | +1.6% | $159.00 | $161.50 | $158.00 | 1,399,310 | |
| $158.00 | -5.00 | -3.1% | $163.50 | $163.50 | $158.00 | 2,656,526 | |
| $163.00 | -1.50 | -0.9% | $161.00 | $165.00 | $161.00 | 2,089,294 | |
| $164.50 | -0.50 | -0.3% | $161.00 | $166.50 | $160.00 | 2,457,561 | |
| $165.00 | -2.50 | -1.5% | $166.00 | $168.50 | $164.00 | 1,905,387 | |
| $167.50 | -0.50 | -0.3% | $165.50 | $169.00 | $160.00 | 4,589,558 | |
| $168.00 | -3.50 | -2.0% | $172.00 | $172.00 | $165.50 | 3,228,107 | |
| $171.50 | -6.50 | -3.7% | $178.00 | $178.50 | $169.00 | 6,394,784 | |
| $178.00 | +13.50 | +8.2% | $168.50 | $179.00 | $166.00 | 7,891,330 | |
| $164.50 | -3.50 | -2.1% | $168.00 | $174.00 | $163.00 | 4,793,702 | |
| $168.00 | -9.00 | -5.1% | $175.00 | $178.50 | $166.00 | 6,644,706 | |
| $177.00 | -2.50 | -1.4% | $182.00 | $184.00 | $175.00 | 12,066,560 | |
| $179.50 | +16.00 | +9.8% | $163.50 | $179.50 | $163.00 | 20,478,108 | |
| $163.50 | +4.00 | +2.5% | $161.50 | $165.00 | $157.00 | 8,218,158 | |
| $159.50 | +8.00 | +5.3% | $153.00 | $166.00 | $152.00 | 13,096,132 | |
| $151.50 | +7.50 | +5.2% | $144.00 | $151.50 | $143.50 | 2,730,951 | |
| $144.00 | +0.50 | +0.3% | $143.50 | $144.00 | $140.50 | 1,148,529 | |
| $143.50 | +1.00 | +0.7% | $141.50 | $146.00 | $141.50 | 1,223,340 | |
| $142.50 | -1.50 | -1.0% | $144.00 | $144.50 | $141.00 | 899,075 | |
| $144.00 | -1.00 | -0.7% | $146.00 | $148.00 | $143.00 | 1,044,539 | |
| $145.00 | -0.50 | -0.3% | $143.00 | $147.50 | $142.00 | 1,635,364 | |
| $145.50 | -2.50 | -1.7% | $149.00 | $149.50 | $144.50 | 1,925,011 | |
| $148.00 | +2.00 | +1.4% | $146.00 | $149.50 | $144.00 | 1,464,347 | |
| $146.00 | -3.50 | -2.3% | $150.50 | $150.50 | $145.00 | 2,032,872 | |
| $149.50 | -1.00 | -0.7% | $152.00 | $154.00 | $149.50 | 2,093,577 | |
| $150.50 | -1.00 | -0.7% | $151.00 | $153.50 | $150.50 | 1,710,664 | |
| $151.50 | +2.00 | +1.3% | $148.50 | $151.50 | $147.00 | 2,269,280 | |
| $149.50 | -2.00 | -1.3% | $154.00 | $157.50 | $148.50 | 4,825,120 | |
| $151.50 | -3.00 | -1.9% | $153.50 | $155.50 | $149.50 | 6,013,391 | |
| $154.50 | +14.00 | +10.0% | $142.00 | $154.50 | $141.50 | 11,639,405 | |
| $140.50 | +5.00 | +3.7% | $138.00 | $141.00 | $138.00 | 2,430,681 | |
| $135.50 | -1.00 | -0.7% | $134.00 | $137.50 | $133.50 | 1,363,293 | |
| $136.50 | +5.50 | +4.2% | $131.00 | $138.00 | $131.00 | 2,271,500 | |
| $131.00 | +10.50 | +8.7% | $127.00 | $132.00 | $127.00 | 2,038,471 | |
| $120.50 | -4.00 | -3.2% | $123.50 | $126.00 | $119.50 | 1,676,681 |
- Ticker
- TWSE:2421
- Asset type
- Stock
- Exchange
- TWSE
- Currency
- TWD
What changed lately
Latest news release · Mar 25, 2026
SUNON Showcases High-Efficiency Thermal Innovations at MCE 2026
Latest news
SUNON Showcases High-Efficiency Thermal Innovations at MCE 2026
Mar 25, 2026
Closed $136.00 (-2.5%) on Mar 26, 2026
Sunonwealth Electric Machine Industry Co., Ltd. on 6ix
- News releases
- 1 in the last 12 months · 16 in all · newest Mar 25, 2026 · oldest 2023
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