Taiwan Stock Market Breaks 44,800 Points on High Volume, Night Session Up 389 Points! Foreign Investors Turn to Net Buy of NT$17.3 Billion, Memory and IC Substrate Stocks Soar

On July 22, the Taiwan stock market opened higher and experienced a high-volume shakeout, rising 592.91 points (+1.34%) to close at 44,825.78, with trading value surging to NT$1.16045 trillion. The OTC index performed strongly, gaining 13.22 points (+3.46%) to close at 381.96. Trading volume successfully surpassed the NT$1 trillion threshold, dispelling concerns over low-volume hesitation. In terms of positioning, foreign investors shifted from net selling to net buying of NT$17.344 billion, while institutional investors bought NT$16.992 billion, resulting in a combined net buy of NT$31.938 billion by the three major institutional investors.

I. Market Analysis

The market opened high and climbed during the morning session, with the weighted index peaking above 1,000 points at 45,323.75, before pulling back due to profit-taking at higher levels, ultimately closing at 44,825.78. Trading volume expanded to NT$1.01 trillion, indicating active turnover among bullish investors. In the集中 market, foreign investors turned to a net buy of NT$17.344 billion, institutional investors bought NT$16.992 billion, and proprietary traders sold NT$2.398 billion. The OTC index surged 3.46% to close at 381.96, holding above short-term moving averages, with small and mid-cap momentum stocks maintaining a fast rotation pattern.

II. Strong Industries

• Memory Manufacturing (Average +9.91%)

Benefiting from explosive demand for AI edge devices and servers, coupled with major manufacturers shifting capacity to HBM, DRAM and NAND Flash supply has tightened, attracting strong buying interest. Nanya Technology (2408) closed at NT$445.50, up +10.00% and hitting the daily limit; Winbond (2344) closed at NT$171.00, up +9.97% and hitting the limit; Macronix (2337) surged +9.76% to close at NT$135.00.

• Copper Clad Laminate (CCL, Average +6.33%)

Strong demand for high-end M7 and M8 materials in next-generation AI servers has boosted manufacturers' gross margins. ITEQ (6213) closed at NT$367.00, up +3.53%; TPK Holding (2383) closed at NT$5,125.00, up +6.11%; TTM Technologies (6274) surged +9.72% to close at NT$1,355.00.

• IC Substrate (IC Carrier, Average +5.90%)

Advanced packaging for AI chips has doubled demand for ABF substrates. Unimicron (3037) locked at the daily limit, closing at NT$907.00 (+9.94%); Kinsus (3189) rose +6.70% to close at NT$796.00; Nan Ya PCB (8046) surged +9.66% to close at NT$1,305.00.

III. Weak Industries

• Aerospace & Defense (Aircraft components average -4.81%, Shipbuilding average -3.80%)

After a sharp rise driven by geopolitical themes, these sectors faced profit-taking pressure at high levels. Aerospace Industrial Development Corporation (2634) plunged -9.93% to hit the daily limit, closing at NT$64.40; TransAsia Airways (2630) dropped -9.68% to close at NT$53.20; Evergreen Aerospace (2645) fell -9.30% to close at NT$195.00; Thunder Tiger (8033) declined -8.18% to close at NT$196.50; Seng Tien (4541) corrected -6.74% to close at NT$70.60.

However, positioning data shows institutional investors are buying on weakness: AIDC (2634) received a net buy of 668 lots from institutional investors, Thunder Tiger (8033) received 77 lots, indicating domestic institutional buying is stepping in to support.

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This data is for reference only and does not constitute any investment advice. Investors should make independent judgments and bear their own risks.