| Name | Code | Last | Cur | M. cap. | Industry |
|---|
| Union Bank of Taiwan | 2838 XTAI | 17.20 | TWD | 2,496 | Banks |
| Union Insurance Co Ltd | 2816 XTAI | 26.90 | TWD | 201 | Property & Casualty Insurance |
| Uni-President Enterprises Corp | 1216 XTAI | 78.20 | TWD | 14,883 | Food Processing |
| Unitech Computer Co Ltd | 2414 XTAI | 42.15 | TWD | 228 | Computer Hardware |
| Unitech Printed Circuit Board Corp | 2367 XTAI | 28.00 | TWD | 665 | Semiconductors |
| United Integrated Services Co Ltd | 2404 XTAI | 965.00 | TWD | 6,095 | Engineering & Construction |
| United Microelectronics Corp | 2303 XTAI | 40.50 | TWD | 17,033 | Semiconductors |
| United Renewable Energy Co Ltd | 3576 XTAI | 6.88 | TWD | 374 | Renewable Energy Equipment & Services |
| Universal Cement Corp | 1104 XTAI | 26.80 | TWD | 616 | Construction Materials |
| Universal Inc | 1325 XTAI | 29.20 | TWD | 83 | Textile & Leather |
| Universal Microelectronics Co Ltd | 2413 XTAI | 19.50 | TWD | 83 | Electrical Equipment |
| Universal Textile Co Ltd | 1445 XTAI | 14.00 | TWD | 61 | Textile & Leather |
| Unizyx Holding Corp | 3704 XTAI | 27.30 | TWD | 369 | Networking & Communications |
| UPAMC NYSE FANG+ ETF | 00757 XTAI | | TWD | | |
| UPC Technology Corp | 1313 XTAI | 9.61 | TWD | 425 | Commodity Chemicals |
| USI Corp | 1304 XTAI | 10.25 | TWD | 368 | Commodity Chemicals |
| U-Tech Media Corp | 3050 XTAI | 13.70 | TWD | 71 | Computer Hardware |
| Ventec International Group Co Ltd | 6672 XTAI | 81.00 | TWD | 193 | Semiconductors |
| Ve Wong Corp | 1203 XTAI | 39.30 | TWD | 312 | Food Processing |
| VIA Technologies Inc | 2388 XTAI | 58.00 | TWD | 1,079 | Semiconductors |
| Victory New Materials Ltd Co | 1340 XTAI | 6.25 | TWD | 32 | Apparel |
| Visual Photonics Epitaxy Co Ltd | 2455 XTAI | 146.00 | TWD | 899 | Semiconductors |
| Vivotek Inc | 3454 XTAI | 94.10 | TWD | 272 | Networking & Communications |
| Voltronic Power Technology Corp | 6409 XTAI | 1,180.00 | TWD | 3,455 | Electrical Equipment |
| Waffer Technology Corp | 6235 XTAI | 55.10 | TWD | 368 | Other Metals & Minerals |
| Wah Lee Industrial Corp | 3010 XTAI | 102.00 | TWD | 886 | Semiconductors |
| Walsin Lihwa Corp | 1605 XTAI | 21.80 | TWD | 3,235 | Electrical Equipment |
| Walsin Technology Corp | 2492 XTAI | 81.20 | TWD | 1,318 | Electronic Equipment |
| Walton Advanced Engineering Inc | 8110 XTAI | 12.85 | TWD | 217 | Semiconductors |
| Wan Hai Lines Ltd | 2615 XTAI | 89.00 | TWD | 8,365 | Shipping |
| Wanhwa Enterprise Co | 2701 XTAI | 11.35 | TWD | 171 | Other REITs |
| Wei Chih Steel Industrial Co Ltd | 2028 XTAI | 18.20 | TWD | 197 | Iron & Steel |
| Wei Chuan Foods Corp | 1201 XTAI | 15.65 | TWD | 265 | Food Processing |
| Weikeng Industrial Co Ltd | 3033 XTAI | 35.40 | TWD | 565 | Semiconductors |
| Wellell Inc | 4106 XTAI | 22.00 | TWD | 74 | Medical Equipment |
| Well Shin Technology Co Ltd | 3501 XTAI | 55.30 | TWD | 219 | Electrical Equipment |
| Welltend Technology Corp | 3021 XTAI | 18.35 | TWD | 58 | Electronic Equipment |
| Weltrend Semiconductor Inc | 2436 XTAI | 46.05 | TWD | 269 | Semiconductors |
| We & Win Development Co Ltd | 2537 XTAI | 11.00 | TWD | 110 | Other REITs |
| Wha Yu Industrial Co Ltd | 3419 XTAI | 13.00 | TWD | 52 | Networking & Communications |
| Winbond Electronics Corp | 2344 XTAI | 17.45 | TWD | 2,630 | Semiconductors |
| Winmate Inc | 3416 XTAI | 161.50 | TWD | 431 | Electronic Equipment |
| Wisdom Marine Lines Co Ltd | 2637 XTAI | 61.70 | TWD | 1,542 | Shipping |
| W.I.S.E. - SSE 50 China Tracker | 008201 XTAI | | TWD | | |
| W.I.S.E. Yuanta/P-shares CSI 300 | 0061 XTAI | | TWD | | |
| Wisher Industrial Co Ltd | 1465 XTAI | 13.45 | TWD | 46 | Textile & Leather |
| Wistron Corp | 3231 XTAI | 124.50 | TWD | 13,111 | Computer Hardware |
| Wistron NeWeb Corp | 6285 XTAI | 118.50 | TWD | 1,921 | Networking & Communications |
| Wiwynn Corp | 6669 XTAI | 2,890.00 | TWD | 17,989 | Computer Hardware |
| Wowprime Corp | 2727 XTAI | 227.50 | TWD | 631 | Restaurants |