Optoelectronics Stocks Plunge as 大立光 Falls 8.21% and 玉晶光 Hits Limit-Down

黃黃郁婷 產業線記者2026-10-29 17:08

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台股 29日 opened low and moved lower to close at 46368.33點, down 667.25點, or 1.42%. The optoelectronics group was the hardest-hit sector, with 大立光 plunging 8.21% to close at 5815元, 玉晶光 closing limit-down at 1200元, and all three panel makers closing in the red.

Broad Market Opens Low and Moves Lower, Loses 47000點

The TAIEX 29日 opened low and moved lower, retaking 47000點 for only one day before losing it again, closing at 46368.33點, down 667.25點, or 1.42%, with turnover reaching 7891.52億元. Declines were most concentrated in optoelectronics stocks, with multiple bellwether stocks weakening together and the overall group trading mostly lower.

Optical Group Leads Declines as 大立光 Plunges

The optical group was the hardest-hit segment. 大立光 (3008) fell 520元 to close at 5815元, down 8.21%. 玉晶光 (3406) saw its prior 4-session winning streak snapped, plunging to a limit-down close at 1200元. 今國光 (6209) closed at 93.6元, down 7.33%; 中揚光 (6668) closed at 54.2元, down 6.39%; 揚明光 (3504) closed at 67.0元, down 5.50%.

Other optoelectronics stocks were also under pressure, with 光鋐 (4956) closing at 38.30元, down 6.59%; 澤米 (6742) closing at 58.9元, down 6.36%; 正達 (3149) closing at 68.8元, down 5.10%; 宏齊 (6168) closing at 35.50元, down 4.83%; 佳凌 (4976) closing at 36.25元, down 4.73%; TPK-KY (3673) closing at 71.5元, down 4.67%; GIS-KY (6456) closing at 102.5元, down 4.65%; 有成精密 (4949) closing at 77.8元, down 4.07%. 晶彩科 (3535), 台表科 (6278) and 惠特 (6706) all fell by more than 3%.

Panel Trio All Lower While Defiant Gainers Support Market

The three panel makers all closed lower, with 友達 (2409) down 4.22% to close at 34.05元; 群創 (3481) down 5.06% to close at 46.00元; and 彩晶 (6116) down 2.8% to close at 13.9元. There were still gainers bucking the trend, with 鼎元 (2426) and 吉祥全 (2491) surging more than 6% against the downtrend, while 冠西電 (2466) closed at 322元, marking a 5th straight gain and continuing to set a new record high, with a cumulative gain of 42.48%.

FAQ

How did the Taiwan stock market perform on the 29th?

The weighted index opened low and moved lower, closing at 46368.33點, down 667.25點, or 1.42%, with turnover of 7891.52億元, losing the 47000點 level again.

Which optical stocks fell the most?

大立光 closed at 5815元, down 8.21%; 玉晶光 closed limit-down at 1200元; 今國光 closed at 93.6元, down 7.33%, and 中揚光 closed at 54.2元, down 6.39%.

How did the panel trio and the gainers bucking the trend perform?

友達 closed at 34.05元, down 4.22%, 群創 closed at 46元, down 5.06%, and 彩晶 closed at 13.9元, down 2.8%; 鼎元 and 吉祥全 rose more than 6%, while 冠西電 closed at 322元, hitting a new record high.