Domestic Market Closing Briefing and AI Investment Ideas — 2026-05-31
The KOSPI is holding strong near record highs, driven by excitement over NVIDIA CEO Jensen Huang's upcoming visit and hopes for an end to the U.S.-Iran conflict. Semiconductor and AI-related stocks are leading the charge.
Domestic Market Closing Briefing and AI Investment Ideas — 2026-05-31
Market Closing Status
- KOSPI Index: 8,476.15 (All-time high)
- Key Highlights:
- Hopes for an end to the Iran conflict combined with a strong performance in New York markets, with semiconductor giants leading the index.
- Anticipation of AI collaboration ahead of NVIDIA CEO Jensen Huang's visit to Korea is boosting market sentiment.
- Semiconductor heavyweights, including Samsung Electronics and SK Hynix, are fueling the rally.
Today's Market Movers and Key Issues
1. LG Innotek (up 29.98%) The stock surged due to a combination of factors, including thematic growth in semiconductor substrates (FC-BGA, PCB, MLB, etc.) and the excitement surrounding Jensen Huang's visit. The importance of semiconductor substrate materials is being highlighted by the rising demand for AI chips.
2. TS Investment (up 29.96%) The stock skyrocketed following news that the National Growth Fund has confirmed an 800 billion KRW investment in FuriosaAI. This is seen as a signal of expanded investment in the domestic AI ecosystem, positively impacting AI infrastructure-related stocks.
3. Semiconductor Sector (Samsung Electronics, SK Hynix) The upward trend continues, fueled by a U.S. tech-led rally and expectations for AI cooperation. Jensen Huang's visit is being interpreted as a sign of strengthened cooperation within the Korean AI ecosystem.
Data-Driven AI Investment Ideas
1. Focus on semiconductor substrates and materials With the surge in demand for AI chips, high-end substrate and material manufacturers are benefiting. The 29.98% jump in LG Innotek reflects a market revaluation of semiconductor substrate materials like FC-BGA, PCB, and MLB. Investors are focused on the potential for a supply bottleneck for substrates during the advancement of AI infrastructure.
2. Growing trend in AI infrastructure investment The National Growth Fund's 800 billion KRW investment in FuriosaAI demonstrates a government-level commitment to fostering the AI ecosystem. Increased investment in AI ventures and startups is expected to continue, likely driving demand for AI-related parts and materials.
3. Deepening correlation with global tech stocks The primary reason for the KOSPI rally is its alignment with the U.S. Nasdaq and the Philadelphia Semiconductor Index (SOX). The performance of major Korean semiconductor firms like Samsung Electronics and SK Hynix is influenced by global trends centered on U.S. tech stocks, with corporate collaboration news, such as Jensen Huang's visit, serving as additional momentum.
Investment Risks and Macro Context
Easing Geopolitical Risks Hopes for U.S.-Iran peace negotiations are improving market sentiment. This could lead to stabilized energy prices and reduced global economic uncertainty, acting as a catalyst for a preference for risk assets.
May Market 'Record-Breaking Rally' The KOSPI rose approximately 24% throughout May, completely defying the "Sell in May and go away" adage. This reflects the market's strong conviction in the AI revolution and the expected benefits for the Korean semiconductor industry.
Tech-heavy Market Structure Currently, the domestic stock market is extremely concentrated in semiconductor and AI-related stocks. Investors should be aware of the need for balance adjustments with other sectors like consumption, retail, and finance, and remain mindful of the volatility associated with semiconductor industry cycles.
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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