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AI Stocks Lead Taiwan Market Rally: MediaTek and Alchip Hit Record Highs
Electronic Technology · Semiconductors · economic_daily · 2026-09-21
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Taiwan stocks surged as AI and ASIC-related shares dominated trading, with MediaTek and Alchip reaching record highs while Unimicron reclaimed the 1,000 TWD mark.
What Happened
AI Sector Dominates Market: The Taiwan stock market saw a strong rally today, driven primarily by heavy capital inflows into AI and ASIC-related stocks. MediaTek and Alchip were the standout performers, both hitting new historical highs during the session as investor sentiment remains bullish on the AI supply chain.
MediaTek and Alchip Milestones: MediaTek broke through the 5,000 TWD threshold, recording the highest trading value in the market supported by consistent foreign buying. Alchip also saw significant gains, with institutional investors stepping back into the stock, helping it recover from intraday volatility to close at a record peak.
Unimicron Reclaims 1,000 TWD: After facing regulatory headwinds in late August, Unimicron staged a notable recovery, closing back above the 1,000 TWD level and reclaiming its monthly moving average. Consecutive days of net buying by institutional investors suggest that market confidence in the company's outlook is stabilizing.
Broad Market Performance: Supported by steady gains in TSMC and Delta Electronics, the broader index managed to hold above the 47,700-point level. Meanwhile, panel manufacturers AUO and Innolux attracted significant trading volume, with AUO hitting the daily limit, further fueling the market's overall momentum.