South Korea stock market tops India as chip rally hits $5tn

South Korea moved ahead of India as the world’s sixth-largest stock market on Tuesday, another sign that the artificial-intelligence chip trade is redrawing the global equity league table. Korean listed companies were valued at $5.01 trillion, above India’s $4.85 trillion, after an 86 per cent jump this year led by Samsung Electronics Co. and SK Hynix Inc., Bloomberg reported.

Behind the ranking shift is a narrower question for investors: which markets carry the most direct earnings exposure to AI spending? Korea has memory chips, advanced packaging and companies tied to servers used in AI data centres. India has banks, consumer companies and a large domestic-demand story. That can still be attractive, but it has not matched the near-term earnings upgrades attached to chips.

Foreign flows made the split visible. Overseas investors have pulled $26.4 billion from Indian stocks this year, according to Reuters, while Korea’s largest semiconductor names have carried the broader market higher in dollar terms.

“About 18 months ago, India’s equity market cap was roughly 3.5 times South Korea’s and more than twice Taiwan’s. Fast forward just five months into 2026 and that lead has evaporated.”
Source: Venugopal Garre and Nikhil Arela, Bernstein analysts, via Reuters

The Bernstein comparison gives the move its scale. India was not edged out by a brief pullback. Its lead narrowed as global funds looked again at Asia and gave more weight to markets with a direct link to AI capital expenditure. Korea’s chip-heavy index then moved past a market whose appeal had rested on steadier domestic earnings, policy continuity and a widening retail investor base.

For Korea, that has been enough.

The rally also cuts across an old discount. Seoul has often traded below peers because of governance concerns and the so-called Korea discount. Those questions have not gone away, and they may matter again if the chip cycle turns. At the index level, though, Samsung and SK Hynix are being priced as scarce suppliers to the global compute buildout.

Why chips changed the table

Korea now sits closer to Taiwan in the way many portfolio managers read the market: as a concentrated bet on AI servers, high-bandwidth memory and semiconductor manufacturing. India remains the broader story. In 2026, breadth has been less powerful than the direct path from hyperscale capital expenditure to chip earnings revisions.

“AI is the defining theme and semiconductors are at its centre and within emerging markets, that story belongs to Taiwan and Korea, not India.”
Source: Abhay Laijawala, Lighthouse Canton, via Reuters

Lighthouse Canton’s Abhay Laijawala framed the shift as an allocation call rather than a judgment on India’s economy. The question for global funds is whether Indian listed earnings can rise quickly enough to compete with the profit cycle investors see in AI hardware suppliers.

That concentration brings its own risk. Market-cap rankings are dollar snapshots, and a few variables can change them quickly: currencies, share issuance, memory pricing and the performance of a handful of megacap stocks. If AI orders slow, the market that climbed fastest has a clear pressure point.

India’s fall to seventh place does not remove the case for its equities. The market still offers depth, domestic demand and a policy backdrop many managers view as less cyclical than chips. The $26.4 billion in foreign outflows does show, however, that rich valuations need constant confirmation when another Asian market offers a tighter link to the year’s dominant earnings theme.

The next test is whether Korea’s move becomes a benchmark anchor or fades as a catch-up trade. Continued earnings upgrades at Samsung and SK Hynix would make the sixth-place ranking harder to dismiss as a June milestone. A turn in memory prices would do the opposite.