Kospi Jumps Over 6% as AI Chipmakers Drive Massive Rebound in South Korean Stocks

Kospi Jumps Over 6% as AI Chipmakers Drive Massive Rebound in South Korean Stocks​

South Korean equities experienced a sharp rally on Wednesday, with the benchmark KOSPI surging over 6% in early trading. The broad-based recovery was spearheaded by heavyweight semiconductor stocks, signaling a renewed appetite among investors for artificial intelligence related shares after last week's decline.

The KOSPI climbed 406.60 points, registering a gain of 6.03%, reaching 7,154.55 in early trading. Mirroring the tech rally, the technology focused Kosdaq index also advanced nearly 5%. The intensity of the market movements prompted the activation of the KOSPI's sidecar mechanism, resulting in a temporary five minute suspension of program trading to manage volatility.

Semiconductor Stocks Lead AI-Fueled Surge​

Gains in the sector were pronounced across major tech companies. SK Hynix, recognized as the world's leading AI memory chipmaker, surged more than 9%. Rival Samsung Electronics also advanced significantly, gaining 6.6%, continuing its momentum from previous sessions.

These surges align with a strong rebound observed overnight in U.S. equities. The Nasdaq Composite finished higher, and the Philadelphia SE Semiconductor Index surged by over 5%, marking its strongest daily performance in five weeks. Investor focus is now directed towards upcoming quarterly earnings reports from major players like Alphabet (Google's parent company), Intel, and Texas Instruments, which are expected to provide new direction for the global AI stock market.

Beyond Chips: Automakers and Battery Stocks Climb​

The rally extended well beyond semiconductor stocks, demonstrating sector-wide strength. Hyundai Motor gained 7.64%, while its affiliate Kia Corp added 2.97% in value.

The battery segment also performed robustly, with LG Energy Solution rising 3.79%. Posco Holdings saw a gain of 2.5%, while Samsung BioLogics traded little changed from its previous close.

Sustained Foreign Investor Interest and Market Breadth​

Market breadth remained unequivocally positive during the session. Out of 911 traded stocks, 728 registered gains, compared to only 162 declines.

Foreign investors continued their buying trend in South Korean equities. During the day's trading, they purchased a net worth of 1.75 trillion won (approximately $1.18 billion). Cumulatively, foreign investors’ net purchases over the past week and through Tuesday reached 2.71 trillion won, underscoring sustained overseas confidence in the domestic market.

Currency Movement and Fixed Income Market Trends​

The South Korean won strengthened slightly on settlement platforms, trading at 1,480 per U.S. dollar onshore. In offshore markets, the currency was quoted at 1,480.0 per dollar, reflecting a gain of 0.1% for the day. One month non-deliverable forward contracts were priced at 1,478.9.

In the fixed income sector, there was movement in Treasury bonds. September futures on three year Treasury bonds fell by 0.09 point to 102.79. The yield on the most actively traded three year Korean Treasury bond increased by 2.8 basis points, settling at 3.897%. Similarly, the benchmark 10 year government bond yield rose 2.8 basis points to 4.359%, as Reuters reported.