The AI Binge That Brought Down Korea’s Stock Market

The Kospi’s swift descent into bear territory has left investors reeling from a 20% drop in value since its record high. This reversal is largely attributed to the collapse of the AI trade, which was once touted as a surefire winner.

Behind this correction lies a stark reality: the concentration risks inherent in South Korea’s stock market have finally caught up with it. The index’s narrow dependence on AI-driven growth has left investors wondering if the fundamentals that drove the rally are now under siege. Behemoths like Samsung Electronics and SK Hynix command more than half of the Kospi’s weighting, exposing the perils of extreme concentration risks.

Industry experts point to a perfect storm of positioning risks and heightened global uncertainty as the primary drivers of the correction. According to Manishi Raychaudhuri of Emmer Capital, “South Korea’s recent drawdown has been driven by heightened AI skepticism on the part of global investors, coupled with extreme market concentration.” This shift in sentiment is less about a deterioration in fundamentals and more about the inevitable backlash against overexposure to the AI trade.

The phenomenon isn’t unique to South Korea; it reflects a broader trend in modern markets where news flows and fads drive swings rather than fundamentals. Peter Kim, global investment strategist at KB Financial Group, notes that “retail fund flows, leveraged exchange-traded funds, and AI-driven concentration have made swings of 5% to 10% increasingly common.” This volatility has been exacerbated by the surge in the Kospi volatility index, which has more than doubled since the start of the year.

Despite strong earnings from key companies like Samsung Electronics, investors continue to question the pace of earnings growth rather than challenging the sustainability of AI demand itself. Rolf Bulk, head of semiconductors and infrastructure at Futurum Group, highlights that memory prices have continued to strengthen, with increases expected later this year. This underscores a crucial distinction: the current correction is more about valuation adjustment than it is about the end of the AI cycle.

For those willing to brave near-term volatility, experts point to opportunities emerging from the ashes. Jung In Yun of Fibonacci Asset Management Global believes that “once global risk sentiment stabilizes, foreign investors are likely to revisit Korea given its central role in the global AI supply chain.” The listing of SK Hynix on Friday could provide a near-term boost for memory stocks, and constructive management commentary from key players like Samsung Electronics and SK Hynix later this month can further support the Kospi.

The trajectory ahead is uncertain, with the timing of any sustained recovery dependent on broader global market conditions. However, one thing is clear: South Korea’s stock market has served as a microcosm for the wider risks associated with AI-driven growth and concentration in modern markets. As investors navigate this volatile landscape, they would do well to remember that even the most promising trends can turn into bearish traps when taken too far.

The Kospi’s tumultuous ride serves as a stark reminder of the perils of getting caught up in fads and the importance of maintaining a nuanced view of market dynamics. Global investors would be wise to heed this lesson and approach the AI trade with caution, lest they find themselves on the receiving end of another correction.