Sunonwealth Electric Machine Industry Co., Ltd. (2421.TW) TAI
Currency In TWD
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Currency In TWD
If you invested 1000 NT$ in Sunonwealth Electric Machine Industry Co., Ltd. (2421.TW) 10 years ago, it would be worth 8,853.61 NT$ as of September 12, 2026, based on a reinvested dividends scenario. Over the same period, a 1000 NT$ investment made 5 years ago would be worth 4,743.37 NT$, while 1000 NT$ invested 1 year ago would be worth 1,236.84 NT$. This corresponds to total returns of 785.36%, 374.34%, 23.68%, respectively, with annualized returns of 24.35%, 36.53%, 23.68%.
Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.
Date Range:
| Date | Open | Close | Adj Close | High | Low | Volume |
|---|---|---|---|---|---|---|
| September 11, 2026 | 161 | 164.5 | 164.5 | 166.5 | 160 | 2.33M |
| September 10, 2026 | 166 | 165 | 165 | 168.5 | 164 | 1.93M |
| September 09, 2026 | 165.5 | 167.5 | 167.5 | 169 | 160 | 4.67M |
| September 08, 2026 | 172 | 168 | 168 | 172 | 165.5 | 3.01M |
| September 07, 2026 | 178 | 171.5 | 171.5 | 178.5 | 169 | 6.51M |
| September 04, 2026 | 168.5 | 178 | 178 | 179 | 166 | 8M |
| September 03, 2026 | 168 | 164.5 | 164.5 | 174 | 163 | 4.86M |
| September 02, 2026 | 175 | 168 | 168 | 178.5 | 166 | 6.78M |
| September 01, 2026 | 182 | 177 | 177 | 184 | 175 | 12.22M |
| August 31, 2026 | 163.5 | 179.5 | 179.5 | 179.5 | 163 | 20.95M |
| August 28, 2026 | 161.5 | 163.5 | 163.5 | 165 | 157 | 8.03M |
| August 27, 2026 | 153 | 159.5 | 159.5 | 166 | 152 | 13.33M |
| August 26, 2026 | 144 | 151.5 | 151.5 | 151.5 | 143.5 | 2.76M |
| August 25, 2026 | 143.5 | 144 | 144 | 144 | 140.5 | 1.15M |
| August 24, 2026 | 141.5 | 143.5 | 143.5 | 146 | 141.5 | 1.24M |
| August 21, 2026 | 144 | 142.5 | 142.5 | 144.5 | 141 | 921,804 |
| August 20, 2026 | 146 | 144 | 144 | 148 | 143 | 1.02M |
| August 19, 2026 | 143 | 145 | 145 | 147.5 | 142 | 1.66M |
| August 18, 2026 | 149 | 145.5 | 145.5 | 149.5 | 144.5 | 1.91M |
| August 17, 2026 | 146 | 148 | 148 | 149.5 | 144 | 1.42M |
| August 14, 2026 | 150.5 | 146 | 146 | 150.5 | 145 | 2.08M |
| August 13, 2026 | 152 | 149.5 | 149.5 | 154 | 149.5 | 2.14M |
| August 12, 2026 | 151 | 150.5 | 150.5 | 153.5 | 150.5 | 1.75M |
| August 11, 2026 | 148.5 | 151.5 | 151.5 | 151.5 | 147 | 2.17M |
| August 10, 2026 | 154 | 149.5 | 149.5 | 157.5 | 148.5 | 4.67M |
| August 07, 2026 | 153.5 | 151.5 | 151.5 | 155.5 | 149.5 | 6.06M |
| August 06, 2026 | 142 | 154.5 | 154.5 | 154.5 | 141.5 | 11.88M |
| August 05, 2026 | 138 | 140.5 | 140.5 | 141 | 138 | 2.47M |
| August 04, 2026 | 134 | 135.5 | 135.5 | 137.5 | 133.5 | 1.38M |
| August 03, 2026 | 131 | 136.5 | 136.5 | 138 | 131 | 2.31M |
| July 31, 2026 | 127 | 131 | 131 | 132 | 127 | 2.06M |
| July 30, 2026 | 123.5 | 120.5 | 120.5 | 126 | 119.5 | 1.61M |
| July 29, 2026 | 129.5 | 124.5 | 124.5 | 130 | 118.5 | 3.32M |
| July 28, 2026 | 129 | 126.5 | 126.5 | 129 | 124 | 1.67M |
| July 27, 2026 | 132 | 131.5 | 131.5 | 132 | 128 | 993,684 |
| July 24, 2026 | 132.5 | 130 | 130 | 134.5 | 129.5 | 838,507 |
| July 23, 2026 | 132 | 133.5 | 133.5 | 135 | 131 | 1M |
| July 22, 2026 | 131 | 132 | 132 | 133.5 | 130.5 | 2.4M |
| July 21, 2026 | 126 | 128.5 | 128.5 | 129 | 126 | 1.32M |
| July 20, 2026 | 127 | 125.5 | 125.5 | 128 | 120.5 | 1.58M |
| July 17, 2026 | 131 | 127 | 127 | 133.5 | 127 | 2.46M |
| July 16, 2026 | 137 | 135 | 135 | 138 | 133.5 | 1.28M |
| July 15, 2026 | 136 | 139 | 139 | 140 | 135 | 2.16M |
| July 14, 2026 | 138.5 | 133.5 | 133.5 | 140 | 128 | 2.91M |
| July 13, 2026 | 144 | 138 | 138 | 144 | 137 | 1.75M |
| July 09, 2026 | 143.5 | 142.5 | 142.5 | 144.5 | 142 | 1.4M |
| July 08, 2026 | 145 | 143.5 | 143.5 | 147 | 141.5 | 1.53M |
| July 07, 2026 | 149.5 | 144 | 144 | 149.5 | 142.5 | 1.83M |
| July 06, 2026 | 150 | 148.5 | 148.5 | 152 | 147.5 | 1.34M |
| July 03, 2026 | 146.5 | 149 | 149 | 150 | 146 | 1.42M |
| July 02, 2026 | 145 | 148 | 148 | 148 | 143 | 1.35M |
| July 01, 2026 | 145 | 146 | 146 | 148 | 144.5 | 2.34M |
| June 30, 2026 | 139.5 | 142 | 142 | 144.5 | 139 | 2.2M |
| June 29, 2026 | 138.5 | 138 | 138 | 141.5 | 137 | 1.74M |
| June 26, 2026 | 144.5 | 137 | 137 | 145.5 | 137 | 3.66M |
| June 25, 2026 | 150.5 | 145.5 | 145.5 | 151.5 | 145.5 | 2.8M |
| June 24, 2026 | 145 | 150 | 150 | 150 | 144 | 2.48M |
| June 23, 2026 | 151 | 146.5 | 146.5 | 151 | 145.5 | 2.87M |
| June 22, 2026 | 147.5 | 150 | 150 | 150.5 | 145.5 | 4.13M |
| June 18, 2026 | 145 | 145 | 145 | 146 | 144 | 2.09M |