Taiex plunges 2728 points in October as shipping defies downturn to support market

林林靖雯 財經主筆2026-10-30 14:29

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On the last trading day of October, Taiwan stocks plunged 1156.5 points to close at 45211.83 points, with a cumulative October decline of 2728 points. Electronics heavyweights weakened across the board, with only shipping resisting the decline. The outlook focuses on US stocks and buying in mainstream sectors.

Electronics heavyweights lead decline as index falls below half-year moving average

Taiwan stocks today (30) saw the last trading day of October. Dragged by selling pressure from US tech giant earnings and rising market doubts over returns on AI capital expenditure, the weighted index plunged more than 1600 points intraday, falling below 4萬6千點, 4萬5千點 and the half-year moving average. It ended down 1156.5 points at 45211.83 points, with turnover of 8877.3億元. The weekly line fell for three straight weeks, down 829 points for the week, while the monthly line turned negative, with a cumulative October decline of 2728 points.

TSMC MediaTek weaken as Delta Electronics hits limit-down

In heavyweight stocks, TSMC (2330) was the main pressure on the broader market, testing 2360 yuan intraday and ending down 45 yuan at 2370 yuan, down 1.86%. MediaTek (2454) fell nearly 5% intraday and closed at 3915 yuan, down 3.21%. It will hold an earnings call this afternoon, with the market watching its fourth-quarter outlook, AI ASIC business progress and gross margin changes. Delta Electronics (2308) closed at the limit-down price of 1335 yuan, Hon Hai (2317) closed at 245.5 yuan, down 1.01%, Quanta (2382) closed flat at 318 yuan, relatively resilient, while UMC (2303), Yageo (2327) and ASE Technology Holding (3711) also came under pressure.

PCB and panels plunge as shipping becomes safe haven

By sector, PCB and AI supply chains were the focus of selling, with EMC (2383), Gold Circuit Electronics (2368), Unimicron (3037), Kinsus (3189), Zhen Ding-KY (4958) and TUC (6274) broadly weaker, with TUC hitting limit-down intraday and Gold Circuit Electronics falling nearly 9% at one point. Panel stocks were among the hardest hit, with AUO (2409) hitting limit-down, Innolux (3481) plunging 7.5%, and HannStar Display (6116) down about 4.3%, as prior gains on AI advanced packaging, glass substrate and CPO transition themes were unwound alongside the electronics correction. In contrast, shipping stocks resisted the decline, with Evergreen Marine (2603) holding up intraday, while Yang Ming (2609) and Wan Hai (2615) both closed up more than 4%.

Volatility intensifies with 3 key factors ahead

Taiwan stocks swung sharply this week, surging more than 900 points on Wednesday, retreating 667 points on Thursday, and extending losses today. Divergent earnings and outlooks from large US technology firms and questions over whether AI infrastructure investment can translate into profits dragged on global technology valuations, while small and mid-cap electronics were also sold off, with the OTC index down more than 5% intraday. Today coincided with month-end institutional position adjustments and shifts in foreign investors’ spot and futures positioning, amplifying volatility. In the short term, chips need to settle before a rebound, with whether the index can reclaim the half-year moving average and whether buying can regroup in mainstream AI, semiconductor and PCB sectors as important indicators for November.

FAQ

How did Taiwan stocks perform today and in October?

Taiwan stocks fell 1156.5 points today to close at 45211.83 points, with turnover of 8877.3億元 and an intraday drop of more than 1600 points; they fell 829 points for the week and 2728 points cumulatively in October.

Which stocks and sectors led declines, and which were relatively resilient?

TSMC closed at 2370 yuan, down 1.86%, MediaTek closed at 3915 yuan, down 3.21%, and Delta Electronics closed limit-down at 1335 yuan; PCB, AI server, memory and panel stocks weakened together, with AUO hitting limit-down; shipping stocks resisted the decline, with Yang Ming and Wan Hai up more than 4%, while Quanta closed flat.

What are the key points to watch ahead?

In the short term, chips need to settle, with focus on US technology stock trends, foreign investor selling moves, whether the index can stand back above the half-year moving average, and whether buying can regroup in AI, semiconductor and PCB sectors.