South Korean Kospi Surges 6% Amid AI Chip Optimism Despite Weekly Loss

South Korean markets witnessed a massive rally on Friday as tech heavyweights staged a significant comeback, though the broader index remains under pressure. Despite a nearly 6% jump in the benchmark Kospi, the market closed the week with a 3.84% decline due to earlier volatility in the global semiconductor sector.

Samsung and SK Hynix Lead Tech-Driven Recovery

The primary catalyst for Friday's surge was a wave of optimism surrounding the artificial intelligence (AI) hardware sector. Samsung Electronics, a cornerstone of the South Korean economy, saw its shares rally over 8%. This surge follows reports that Anthropic PBC is in discussions with the chipmaker to establish a manufacturing partnership for custom AI chips.

Similarly, SK Hynix, another critical player in the global memory chip market, saw its shares jump by 7%. This rebound comes as a relief to investors who had been wary following heavy losses in global technology stocks earlier in the week. These losses had triggered widespread concerns that the massive, AI-driven market rally might have reached its peak. While LG Energy Solution also saw marginal gains, the market remained split, with 406 shares advancing and 471 declining out of 912 issues traded.

Foreign Selling and Currency Pressure

Despite the intraday gains, the underlying sentiment remains cautious as institutional investors showed signs of exiting the market. According to Reuters, foreign investors emerged as net sellers, offloading shares worth 1,501.9 billion won.

This outflow coincided with continued pressure on the South Korean won. The currency weakened against the US dollar, settling at 1,544.4 per USD on the onshore platform, a 0.28% drop from its previous close. The depreciation highlights a broader trend, as the won has fallen 6.8% against the USD so far this year. This currency volatility often complicates the outlook for export-oriented giants like Samsung, even as the Kospi maintains a massive year-to-date gain of 89.25%.

Stability in Debt and Treasury Markets

While the equity markets experienced significant swings, the money and debt markets showed signs of relative stability. In the bond market, September futures on three-year treasury bonds gained 0.08 points to reach 103.11.

Yields also saw a slight decline, suggesting a subtle shift in investor positioning within the fixed-income space. The most liquid three-year Korean treasury bond yield slipped by 1.5 basis points to 3.732%, while the benchmark 10-year yield fell by 0.7 basis points to settle at 4.173%. This movement indicates that while equity volatility remains high due to AI sentiment, the debt market is reacting to different macroeconomic signals.

Key Takeaways

  • AI Sentiment Rebound: Samsung Electronics (+8%) and SK Hynix (+7%) led a 5.76% Kospi surge, driven by potential AI chip manufacturing partnerships.
  • Institutional Outflow: Foreign investors remained net sellers, offloading shares worth 1,501.9 billion won despite the index rally.
  • Currency Weakness: The South Korean won continues to face pressure, dropping 6.8% against the US dollar so far this year.