Taipei Stocks: TAIEX, TSMC and Foreign Flows — 2026-09-08
The Taiwan Weighted Index (TAIEX) surged to its second-highest closing level on record this week, driven by a massive rally in semiconductor stocks and aggressive foreign institutional buying. The index climbed over 700 points on Monday, September 7, as foreign investors net bought NT$88.3 billion, while the Taiwan dollar strengthened against the U.S. dollar. Despite the historic highs, Tuesday saw a slight pullback amid a lack of direction during the U.S. holiday, highlighting ongoing volatility in the tech-heavy market.
Taipei Stocks: TAIEX, TSMC and Foreign Flows — 2026-09-08
Top developments
TAIEX Closes at Second-Highest Level on Record
On Monday, September 7, the TAIEX soared more than 700 points to close at 47,326.27, marking its second-highest level in history. The rally was led by large-cap semiconductor stocks, particularly TSMC (2330) and MediaTek (2454), following strong performance by their U.S. counterparts in the previous week. The index opened at 46,724 and reached an intraday high of 47,429.58, with trading volume hitting NT$941.4 billion.
Foreign Investors Net Buy NT$88.3 Billion in One Day
Foreign institutional investors aggressively returned to the Taiwan market on September 7, net buying NT$88.308 billion in equities. This massive inflow was accompanied by local institutions also buying, with the three major institutional investors collectively net buying over NT$112 billion. Foreign investors reduced their short positions in futures, signaling a bullish shift in sentiment. The top sectors for foreign buying included panels, memory, mature process nodes, and active ETFs.
Taiwan Dollar Strengthens as USD Falls
The U.S. dollar closed lower against the Taiwan dollar on Monday, September 7, shedding NT$0.078 to end at NT$31.552. This currency movement coincided with the stock market rally, suggesting that foreign capital inflows were driving both equity prices and the local currency higher. The stronger NTD reflects investor confidence in Taiwan's export-oriented tech sector amidst global AI demand.
Market Pulls Back on Tuesday Amid U.S. Holiday Lull
On Tuesday, September 8, the TAIEX ended lower after moving without clear direction, partly due to the closure of U.S. markets for Labor Day. The market saw increased volatility, with the index swinging 554 points during the session. While TSMC briefly pushed the index higher by touching NT$2,505, profit-taking and lack of new catalysts led to a softer close.
Local view
Local financial media highlighted the dominance of semiconductor stocks in driving the recent records. United Daily News noted that foreign investors have been net buyers for three consecutive days, with their focus shifting towards panels, memory chips, and active ETFs. The report emphasized that while the index hit record highs, the breadth of the rally was concentrated in tech giants like TSMC and MediaTek.
Storm Media reported that institutional buying was heavily skewed towards electronics, with Compal Electronics receiving the largest net buy from the three major institutions on September 4, followed by Hon Hai, Wistron, and UMC. This suggests a broadening interest in the supply chain beyond just the top-tier chipmakers.
Context & numbers
- TAIEX Close (Sept 7): 47,326.27 points (+775.14 points or +1.66%).
- Trading Volume (Sept 7): NT$941.435 billion.
- Foreign Net Buy (Sept 7): NT$88.308 billion.
- Three-Institutional Net Buy (Sept 7): NT$112.719 billion (Foreign: 88.308B, Trust: 8.724B, Self-Operated: 15.687B).
- USD/NTD Rate (Sept 7): Closed at 31.552 (NTD strengthened).
- Foreign FX Reserves: Rose to exceed US$600 billion in August, ending two months of decline.
On the radar
- Nvidia Earnings: Investors are watching for Nvidia's upcoming earnings release as a key catalyst for the AI supply chain, which heavily influences TSMC and related stocks.
- TAIFEX Margin Requirements: The Taiwan Futures Exchange announced temporary increases in margin requirements on September 2, indicating regulatory caution regarding volatility.
- Chip Diplomacy: Reports indicate Taiwan is facing pressure to share AI wealth with allies, which could impact long-term policy and trade dynamics for TSMC.
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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