Taiex Plunges on Heavy Volume, Breaks Below Quarterly Line Toward Semiannual Line

蔡蔡欣怡 理財線記者2026-10-27 05:45

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Taiex plunged 846.34 points to close at 46041.43 last Thursday on heavy volume, breaking below the quarterly line as electronics heavyweights weakened. Institutional investors warned of a short-term bearish bias, with defense likely retreating to the semiannual line at 45121, as funds rotated into financials and traditional industries for safety.

Heavy-Volume Long Black Candle Breaks Quarterly Line Support

Taiex followed U.S. stocks higher at the open last Thursday, but heavy selling emerged after mid-session, dragging the index from gains to losses with widening declines. It closed down 846.34 points, or 1.81%, at 46041.43, with turnover surging to 8792.31億元 in heavy volume. The OTC market fell 3.47% in tandem to close at 381.69. Local institutions noted the market closed with a high-volume long black candle, breaking directly below quarterly line support, while the 10-day moving average above and the long black candle of October 15 remain as resistance, signaling a shift to a weaker short-term pattern.

Rising Quarterly Line Deduction Shifts Defense to Semiannual Line

Local institutions analyzed that if the market cannot quickly stop falling and turn higher, the rising deduction value of the quarterly line will pull the index further away, increasing correction pressure, with the subsequent downside defense retreating to near the semiannual line at 45121. In terms of market structure, electronics still accounted for 75.30% of turnover and remained the center of the selloff. 台積電 (2330), 聯發科 (2454), 鴻海 (2317) and 廣達 (2382) all fell below the quarterly line and entered weak short-term consolidation, showing a clear cooling of market sentiment.

Software Resilient While PCB Group Relatively Supported

Some groups remained relatively resilient. Software stocks showed uniform resilience, with 華經 (2468), 驊宏資 (6148) and 大世科 (8099) bucking the trend. PCB-related glass fiber cloth, copper-clad laminate and substrate groups also showed strength at one point, including 榮科 (4989), 台光電 (2383), 臻鼎-KY (4958), 欣興 (3037) and 定穎投控 (3715), though they still turned lower at the close under systemic market risk. However, institutions believe these stocks have relatively supportive chips and patterns, and could lead a rebound once the market stabilizes. In addition, 精材 (3374), GIS-KY (6456), 玉晶光 (3406) and 信昌電 (6173) held up sporadically on individual themes.

Avoid Catching Falling Knives in 8 Weak Stocks as Funds Move to Defense

Local institutions warned that semiconductor test interface, equipment, chassis rail, memory and optical communication subgroups remain volatile and weak. Weak indicator stocks include 穎崴 (6515), 辛耘 (3583), 川湖 (2059), 勤誠 (8210), 南亞科 (2408), 威剛 (3260), 華星光 (4979) and 上詮 (3363), and investors should stay on the sidelines until selling pressure eases and avoid catching falling knives. Funds rotated to defensive sectors, with the financial index testing the 20-day moving average for support and closing slightly higher against the trend. 中信金 (2891) and 第一金 (2892) drew attention, though follow-up补跌 risk remains if the broader market keeps falling. Among traditional industries, cement stocks surged 2.83%, with 台泥 (1101) serving as a key stabilizer, while shipping stayed in positive territory, with 長榮 (2603), 陽明 (2609) and 萬海 (2615) maintaining strong consolidation.

FAQ

Why did Taiwan stocks plunge last Thursday? What were the close and turnover?

Selling emerged after mid-session, with the market closing down 846.34 points, or 1.81%, at 46041.43 on turnover of 8792.31億元; the OTC index fell 3.47% to 381.69, breaking below quarterly line support.

Where is the downside defense level cited by institutions?

Institutions noted resistance above from the 10-day moving average and the October 15 long black candle. If the market cannot quickly stabilize, the quarterly line deduction will widen the divergence, with the downside target retreating to near the semiannual line at 45121.

Which groups were resilient? Which stocks should be avoided for now?

Software stocks and PCB, glass fiber cloth, copper-clad laminate and substrate groups were relatively supported, while financials, cement and container shipping served as safe havens for funds; the 8 weak stocks including 穎崴, 辛耘, 川湖, 勤誠, 南亞科, 威剛, 華星光 and 上詮 should be left on the sidelines rather than bought on weakness.