Key Points
Taiwan's Taiex rose 0.91% to 45,809.19 on Iran peace deal optimism.
TSMC climbed 1.05% to NT$2,400.00 as AI demand drove semiconductor gains.
Oil prices fell 4.9% to $80.75 per barrel after Strait of Hormuz reopened.
Financial stocks attracted rotation buying amid improved geopolitical sentiment.
Taiwan’s stock market closed at a day’s high on June 16, with the Taiex benchmark index rising 412.20 points, or 0.91%, to 45,809.19. Semiconductor and financial stocks led the advance as investors gained confidence from a planned U.S.-Iran peace agreement and falling oil prices. The rally extended momentum from earlier sessions across Asia.
Taiwan Semiconductors Drive the Gain
Taiwan’s electronics sector rose 0.94% as contract chipmaker TSMC climbed 1.05% to NT$2,400.00. The company accounts for over 40% of total market value. Memory chip supplier Nanya Technology surged 7.46% to NT$425.00, while smartphone IC designer MediaTek gained 2.01% to NT$4,560.00.
Largan Precision, which supplies smartphone camera lenses to Apple, jumped 10% to close at NT$4,680.00, a six-year high. The company is entering the co-packaged optics business to tap AI demand. iPhone assembler Hon Hai underperformed, rising only 0.56% to NT$269.00.
Geopolitical Relief Boosts Regional Markets
The U.S. and Iran are scheduled to sign a peace agreement on Friday, easing geopolitical tensions that had weighed on markets. Japan’s Nikkei Stock Average hit 70,000 for the first time after the Bank of Japan raised its policy rate by 25 basis points to 1%. Emerging-market stocks climbed for a third day, holding near record highs as oil prices fell.
Taiwan turnover totaled NT$1.198 trillion (US$37.97 billion). Analysts noted that gains lagged the strong U.S. rally as some investors hesitated ahead of Wednesday’s June futures settlement.
Oil Prices Fall on Peace Deal Optimism
U.S. crude closed down 4.9% at $80.75 per barrel after President Trump authorized reopening the Strait of Hormuz. Vice President JD Vance told CNBC the strait will be opened “in a toll-free way for the long term.” Lower oil prices supported emerging-market sentiment and reduced inflation concerns.
The Dow Jones Industrial Average added 468.77 points, or 0.92%, for a record close of 51,671.03. The S&P 500 climbed 1.65% to 7,554.29, while the Nasdaq Composite rose 3.07% to 26,683.94.
Financial Sector Attracts Rotation Buying
Taiwan’s financial sector attracted rotational buying as many firms posted strong profits from investments. The sector benefited from improved sentiment and lower interest rate expectations following the geopolitical breakthrough. Taishin Securities analyst Tom Tang said optimism toward geopolitics continued to drive the local main board higher, though some investors remained cautious about possible volatility on settlement day.
Final Thoughts
Taiwan’s 0.91% gain reflects regional strength from the Iran peace deal and lower oil prices. With tech stocks leading and semiconductor demand driven by AI, the data supports continued upside momentum for the Taiex.
FAQs
Investors gained confidence from a planned U.S.-Iran peace agreement and falling oil prices, which eased geopolitical tensions and reduced inflation concerns.
Semiconductors led gains, with TSMC up 1.05%, Nanya Technology up 7.46%, and Largan Precision up 10% on AI-driven demand and co-packaged optics.
The Taiex closed at 45,809.19, up 412.20 points or 0.91%, with turnover totaling NT$1.198 trillion (US$37.97 billion).
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Danny Kontos
Co FounderDanny Kontos has been a stock investor since 2007 and co-founded Meyka in 2023. He keeps a small, focused portfolio and only moves when the numbers are hard to argue with. He has waited years on a single position before. Before Meyka, he ran a web hosting company and a mortgage lending platform, so he knows what a well-run business actually looks like under the hood. This article did not come from a news cycle. It came from someone who has been watching this space for a long time.
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