South Korea has recently overtaken India to secure its position as the world’s sixth largest equity market, outpacing the stock markets of the United Kingdom, Germany, and France. This significant growth has sparked concerns over the reliance of the country’s Kospi index on just two emerging trillion-dollar chipmakers.
Last week, SK Hynix became the latest addition to Asia’s elite group of trillion-dollar companies, joining other tech giants like Samsung Electronics and Taiwan’s TSMC. This trio’s unprecedented rise has been largely fueled by the burgeoning demand for semiconductors essential for artificial intelligence applications. In just one year, SK Hynix’s share price surged by 1,000%, while Samsung’s shares increased by 500%. The Kospi index has mirrored this explosive growth, achieving an all-time high of 8,880, marking a remarkable 220% increase over the past year. Goldman Sachs has forecasted continued positive momentum for the Kospi, elevating its 12-month target to 9,000, citing a “once-in-a-generation surge” in semiconductor profits.
The rapid ascension of South Korea’s stock market has led to a significant shift in the global investment landscape. South Korea and Taiwan have now vaulted ahead of India in market rankings. Investments in the region are booming, as commented by Peter Kim, a global investment strategist at KB Securities, who remarked on the excitement surrounding this transformation, especially since South Korea has become the first country outside the US with multiple companies exceeding a trillion-dollar valuation.
Meanwhile, Japan is also experiencing a surge, with its Nikkei 225 index reaching historic highs as investors flock to AI and semiconductor-related stocks. Significant shifts in corporate leadership have occurred, exemplified by SoftBank Group surpassing Toyota as Japan’s most valuable publicly traded company.
Kim highlighted the ongoing evolution in the tech investment scene, noting that for years, resources flowed toward platforms like Alphabet and Amazon, but there is now a substantial pivot toward hardware, particularly chipmaking. Historically, chipmakers had limited investment allure due to a stagnant demand outlook. However, the AI boom has revitalized interest, creating what Kim described as an “amazing reversion” in the industry’s fortunes.
Nvidia, the first company to reach a $5 trillion valuation, is at the heart of the AI revolution, with its chips produced by Taiwan’s TSMC. Jensen Huang, Nvidia’s CEO, recently emphasized the critical role Taiwan plays in this ecosystem and shared plans for substantial investments in the region, further strengthening its position in AI advancements.
Despite the momentous growth in tech stocks, experts are sounding alarms about a potential bubble. AI’s immense appetite for memory chips—which differ from Nvidia’s high-end processors—has been met primarily by Samsung, SK Hynix, and US chipmaker Micron, the latter also recently joining the trillion-dollar club. Russ Mould, investment director at AJ Bell, cautioned that the extraordinary share price movements of these companies echo tendencies seen prior to the dot-com bubble burst in 2000.
However, Kim suggests the apparent volatility in the chip sector may be softened due to the overwhelming demand from major tech players like Meta, Amazon, Alphabet, and Microsoft, referred to as the “AI hyperscalers,” which possess significant financial resources and strong commitments to AI ventures. Yet, research indicates that Samsung and SK Hynix have been responsible for up to 70% of the Kospi’s growth in 2026, raising concerns about the index’s vulnerability to shifts in global AI spending and possible supply chain disruptions.
Further compounding these concerns, market analyst Ipek Ozkardeskaya noted an alarming spike in the Kospi’s volatility index (VIX), which surged to an unusually high level of 75 this week. Traditionally, the VIX rises amid selloffs rather than during rallies, signaling investor anxiety and a fear of missing out on the ongoing surge.
As investor sentiment shifts, Kim observes a growing belief that Asia, and particularly South Korea, is no longer just relegated to secondary status behind US firms. This change marks a crucial moment in the evolution of global markets, reflecting a reassessment of the importance and potential of companies based in Asia.
