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Geopolitical Tensions Weigh on Taiwan Stocks as TSMC Falls Below NT$2,400

Electronic Technology · Semiconductors · economic_daily · 2026-09-02

Taiwan stocks tumbled over 700 points as escalating US-Iran tensions and a weak US market dragged down major tech stocks, with TSMC breaching the NT$2,400 level.

What Happened

Market Performance: Taiwan's stock market opened lower and continued to slide throughout the session, with the weighted index dropping over 700 points and falling below the 5-day moving average. The decline was largely driven by heightened geopolitical tensions between the US and Iran, alongside a broader sell-off in US markets.

Heavyweight Stocks: Major tech stocks faced significant pressure, with TSMC falling below the NT$2,400 threshold during intraday trading. Other key components like Hon Hai and Delta Electronics also saw declines, while MediaTek struggled to maintain its early gains.

Sector Highlights: Despite the market downturn, CPO-related stocks such as OptiWorks, OptoTech, and IET-KY showed resilience, with OptiWorks hitting the daily limit. Meanwhile, Wiwynn experienced high volatility during its ex-rights trading session.

Earnings Impact: Nan Ya Plastics saw its shares rise after reporting a massive year-on-year profit increase for July. Conversely, LianJinn faced selling pressure despite reporting strong monthly earnings, as the stock was flagged by regulators for increased volatility.

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