After-Hours Market Update: Powerchip and Lightway Surge to Limit Up! Taiwan Stock Market Soars 397 Points Amid Sector Rotation

Today, the Taiwan stock market opened at 45,175.70 points and closed at 45,518.07 points, rising 397.35 points (+0.88%) from the previous day. Among major weighted stocks, TSMC (2330) gained NT$20 to close at NT$2,415, up 0.84%. Hon Hai (2317) performed strongly, rising NT$7 to NT$270, up 2.66%. MediaTek (2454), however, slightly declined by NT$5 to NT$4,015, down 0.12%. The overall market showed a volatile upward trend, with capital continuing to rotate across different sectors.

Market Overview Date: 2026/08/12 Open: 45,175.70 Close: 45,518.07 Change: +397.35 (+0.88%)

Strong Sectors Today's market was led by semiconductors, optoelectronics, and electronic components. Multiple stocks, including United Materials, Lightway, and Powerchip, surged to the daily limit-up, indicating strong investor appetite for specific themes and driving sector-wide outperformance, making them key market drivers.

Weak Sectors On the downside, biotech, healthcare, and some networking stocks showed weakness. Stocks like Sino-Act, Yuan Hsiang Biotech, and Alpha & Omega Semiconductor posted deeper losses, suggesting profit-taking or risk-averse capital outflows. Investors should remain cautious of related risks.

Top Gainers Several stocks performed exceptionally well today, particularly in the semiconductor and electronic components sectors, reflecting continued investor favor. Below are the top gainers:

- United Materials (2434): NT$53.9 ▲NT$4.9 (+10.00%) - Lightway (6442): NT$1,595 ▲NT$145 (+10.00%) - Powerchip (6770): NT$73.7 ▲NT$6.7 (+10.00%) - Chang Kuang (7795): NT$506 ▲NT$46 (+10.00%) - Nanya PCB (8046): NT$1,265 ▲NT$115 (+10.00%) - Feibao Enterprise (4413): NT$17.05 ▲NT$1.55 (+10.00%) - High Gain (4510): NT$44.55 ▲NT$4.05 (+10.00%) - Pan Ya (4707): NT$33 ▲NT$3 (+10.00%) - Huaguang Light (4979): NT$561 ▲NT$51 (+10.00%) - Dehong (5475): NT$148.5 ▲NT$13.5 (+10.00%)

Top Losers On the losing side, biotech, healthcare, and some electronics stocks faced heavy selling pressure, with sharp declines indicating rapid fund rotation and short-term correction pressures in certain sectors. Below are the top decliners:

- Sino-Act (4123): NT$35.1 ▼NT$3.9 (-10.00%) - Zhongzhan (6236): NT$15.35 ▼NT$1.7 (-9.97%) - Yuan Hsiang Biotech (6945): NT$103.5 ▼NT$11 (-9.60%) - Alpha & Omega Semiconductor (5388): NT$82.4 ▼NT$8.7 (-9.55%) - Chien Cheng (5014): NT$10.25 ▼NT$1 (-8.88%) - Actolite-KY (6907): NT$170.5 ▼NT$16.5 (-8.82%) - Cheng Chi (2425): NT$41.9 ▼NT$4.05 (-8.81%) - Thunder Tiger (8033): NT$173 ▼NT$16 (-8.47%) - Dali (4716): NT$17.4 ▼NT$1.5 (-7.93%) - Wan Nian Qing (6624): NT$40.1 ▼NT$3.45 (-7.92%)

Top 10 Volume Stocks Trading was active today, with significant volume expansion in large-cap, panel, and memory stocks, indicating high liquidity and intense market activity.

- Powerchip (6770): NT$73.7 ▲NT$6.7 (+10.00%) 428,376 lots - Winbond (2344): NT$177 ▼NT$1 (-0.56%) 206,979 lots - Innolux (3481): NT$50.4 ▲NT$0.3 (+0.60%) 188,570 lots - Compal (2324): NT$39.9 ▲NT$3.6 (+9.92%) 171,682 lots - AU Optronics (2409): NT$26.25 ▲NT$0.15 (+0.57%) 169,659 lots - Macronix (2337): NT$136.5 ▲NT$4 (+3.02%) 104,252 lots - Hsin Chong (1605): NT$40 ▲NT$1.7 (+4.44%) 94,217 lots - Nanya Technology (2408): NT$482.5 ▼NT$6.5 (-1.33%) 93,467 lots - UMC (2303): NT$123 ▼NT$0 (0.00%) 92,999 lots - ChipMOS (8150): NT$92.2 ▼NT$6.8 (-6.87%) 86,002 lots

Near Limit-Up Stocks The following stocks approached the daily limit-up:

- Chang Hsing (1717): NT$78.6 ▲NT$6.7 (+9.32%) - China Synthetic Fiber (1718): NT$11.2 ▲NT$1 (+9.80%) - Baolong (1906): NT$12.1 ▲NT$1 (+9.01%) - Compal (2324): NT$39.9 ▲NT$3.6 (+9.92%) - MSI (2377): NT$169 ▲NT$15 (+9.74%) - Xingqin (2428): NT$254.5 ▲NT$23 (+9.94%) - United Materials (2434): NT$53.9 ▲NT$4.9 (+10.00%) - Leadtek (2465): NT$95.5 ▲NT$8.6 (+9.90%) - Kinpo (3044): NT$485.5 ▲NT$44 (+9.97%) - Wei Hwa (3055): NT$117 ▲NT$10.5 (+9.86%) - Shengtai (3229): NT$55.9 ▲NT$4.9 (+9.61%) - Taisil (3532): NT$312 ▲NT$28 (+9.86%) - Chien Tse (3653): NT$4,470 ▲NT$405 (+9.96%) - Chicony Materials (4551): NT$172.5 ▲NT$15.5 (+9.87%) - CMC Magnetics (4960): NT$22.75 ▲NT$2.05 (+9.90%) - Tian Han (6225): NT$33.45 ▲NT$3 (+9.85%) - Lightway (6442): NT$1,595 ▲NT$145 (+10.00%) - KGI Biotech (6715): NT$396.5 ▲NT$36 (+9.99%) - Powerchip (6770): NT$73.7 ▲NT$6.7 (+10.00%) - Maike (6831): NT$678 ▲NT$61 (+9.89%) - Yungching (7711): NT$447.5 ▲NT$40.5 (+9.95%) - Chang Kuang (7795): NT$506 ▲NT$46 (+10.00%) - Nanya PCB (8046): NT$1,265 ▲NT$115 (+10.00%) - Kolin (8996): NT$1,170 ▲NT$105 (+9.86%) - Lee Chou (3066): NT$23.75 ▲NT$2.15 (+9.95%) - United Biomedical (3081): NT$2,725 ▲NT$245 (+9.87%) - TSC (3265): NT$175 ▲NT$15.5 (+9.71%) - Guanghuan (3287): NT$35.45 ▲NT$3.2 (+9.92%) - Shang Li (3360): NT$17.45 ▲NT$1.55 (+9.74%) - United Opto (3441): NT$87.2 ▲NT$7.9 (+9.96%) - Yutian (3455): NT$222 ▲NT$20 (+9.90%) - Feibao Enterprise (4413): NT$17.05 ▲NT$1.55 (+10.00%) - High Gain (4510): NT$44.55 ▲NT$4.05 (+10.00%) - Jian Chun (4561): NT$46.05 ▲NT$4.15 (+9.90%) - Pan Ya (4707): NT$33 ▲NT$3 (+10.00%) - Hao Zhan (4735): NT$38.35 ▲NT$3.45 (+9.88%) - Huaguang Light (4979): NT$561 ▲NT$51 (+10.00%) - Lin Hong (5464): NT$67.5 ▲NT$6.1 (+9.93%) - Fu Hua (5465): NT$23.7 ▲NT$2.15 (+9.97%) - Dehong (5475): NT$148.5 ▲NT$13.5 (+10.00%) - China Silicon (5483): NT$185 ▲NT$16.5 (+9.79%) - Jih Ho Securities (5864): NT$33.45 ▲NT$3 (+9.85%) - Sunyen Electric (6173): NT$203.5 ▲NT$18.5 (+10.00%) - Wan Run (6187): NT$1,155 ▲NT$105 (+10.00%) - Chin Tai (6221): NT$22.6 ▲NT$2.05 (+9.97%) - Tai Lung (6246): NT$13.35 ▲NT$1.2 (+9.87%) - Peiheng (6291): NT$402.5 ▲NT$36.5 (+9.97%) - GlobalWafers (6488): NT$933 ▲NT$84 (+9.89%) - Cang He (6538): NT$161.5 ▲NT$14.5 (+9.86%) - Cheng Chi (6546): NT$68 ▲NT$6.1 (+9.85%) - Eastone Optoelectronics (6588): NT$97.1 ▲NT$8.8 (+9.96%) - Anpo (7792): NT$232.5 ▲NT$21 (+9.92%) - Nafic (807): Incomplete data