South Korea has leapfrogged India to turn into the world’s sixth largest share market, leaving fairness markets within the UK, Germany and France trailing in its mud. However regardless of the runaway success, some are elevating considerations that the Kospi index is simply too depending on two freshly minted trillion-dollar chipmaking firms.
Chip firm SK Hynix final week claimed a seat in Asia’s trillion-dollar firm membership, alongside South Korean compatriot Samsung Electronics and Taiwan’s TSMC. Explosive demand for chips used in AI has propelled the trio previous the valuation threshold.
SK Hynix’s share value has skyrocketed 1,000% over the previous yr, whereas Samsung has soared 500%. Off the again of the gorgeous rise of those chipmakers, South Korea’s inventory market has skilled blistering progress since late 2025, shattering document after document.
The Kospi index hit an all-time excessive of 8,880 this week, capping a 220% rise in 12 months. Goldman Sachs have predicted additional beneficial properties. It has raised their 12-month Kospi goal to 9,000, in what the funding financial institution known as a “once-in-a-generation surge” in semiconductor earnings. In a reshuffle of the worldwide pecking order, South Korea and Taiwan’s inventory markets have vaulted over India.
“I’m watching it in Seoul, and I nonetheless must hold pinching myself,” says Peter Kim, world funding strategist at KB Securities, as South Korea grew to become the primary nation aside from the US to have multiple firm price at the very least $1tn. “Definitely Koreans are enthusiastic about it.”
Japan, too, is using excessive on the AI growth.
Tokyo’s Nikkei 225 index notched an all-time excessive on Monday as buyers continued to climb into AI and semiconductor-related shares. Amid the cash strikes, the automotive behemoth Toyota misplaced its crown as Japan’s most precious listed firm, toppled by SoftBank Group, an funding firm closely centered on AI tech.
Kim says a “dramatic shift” is below method. After 20 years of funding in platforms reminiscent of Alphabet, Amazon and Meta, turning tech begin ups into among the greatest firms on the planet, the cash is shifting to the {hardware} aspect.
Till just lately, chipmakers had restricted funding enchantment, Kim says, with firms producing “a reasonably flat and unexciting demand outlook”. However the rise of AI and its huge thirst for chips has created an “superb reversion”.
Nvidia, the world’s first $5tn firm, sits at the centre of the AI ecosystem. Manufacturing of its chips are outsourced to TSMC in Taiwan, which grew to become the primary firm in Asia to hit the $1tn mark.
Nvidia’s CEO Jensen Huang flew into Taiwan on the finish of Could and made a variety of bullish declarations – together with plans to take a position $150bn a yr in Taiwan, which he views because the “epicentre” of the AI revolution.
“Taiwan is booming,” Huang mentioned. “That is the place the chips come, packaging comes, that is the place the methods are made, that is the place AI supercomputers have been created.” Whereas in Taipei, Huang met with high South Korean tech executives, and he is because of fly to South Korea this week.
However the speedy rise of tech shares has raised considerations about an AI bubble.
AI has a voracious demand for reminiscence chips – which serve a special operate to Nvidia’s superior chips. The three firms assembly that demand are Samsung, SK Hynix and the US chipmaker Micron, itself a latest addition to the $1tn membership.
Russ Mould, the funding director at AJ Bell, cautions the share value charts of these three chipmakers bear similarities to some firms in 2000, simply because the tech bubble was on the brink of burst.
The chip sector has a repute for volatility and boom-bust cycles. However Mould argues these cycles are behind us, “due to demand from AI”.
Kim agrees. He says demand, for now at the very least, seems underpinned by Meta, Amazon, Alphabet, Microsoft, a gaggle he labels “the AI hyperscalers”, who’ve “a lot money” and “a lot dedication into this AI enterprise”.
However Kim says his agency’s analysis signifies Samsung and SK Hynix have contributed as much as 70% of the Kospi’s progress in 2026. The polarisation of South Korea’s bull market is unprecedented, he says.
Such focus does depart the Kospi extremely uncovered to the worldwide AI spending cycle or provide chain points.
Ipek Ozkardeskaya, a senior analyst at Swissquote, famous the Kospi’s VIX, a volatility index, hit “an exceptionally excessive stage” of 75 this week – traditionally, the index hovers about 20, she wrote in a market word.
It’s uncommon because the VIX sometimes rises throughout heavy selloffs on fairness markets – not when they’re rising, Ozkardeskaya mentioned.
“The spike within the VIX, alongside the Kospi’s historic rally, exhibits that buyers at present are somewhat shopping for in panic, scared to overlook out on one thing huge.”
Kim says one other change is blowing by world markets. Conventional institutional buyers have lengthy believed the US has an important, smartest, and largest firms, he says, and that “Asia is there to only decide up the scraps”.
“I really feel that sentiment has turned.”