Taiwan's market capitalization reached $4.95 trillion as of Monday's close, according to a Bloomberg tally, narrowly surpassing India's $4.92 trillion — a margin of about $30 billion, or less than 1 percent, that leaves the ranking vulnerable to reversal on any sharp swing.
The shift places Taiwan behind only the United States, mainland China, Japan and Hong Kong, while South Korea ranked seventh, just ahead of Canada.
The two markets are moving in opposite directions for a single underlying reason: exposure to technology hardware at the center of the AI investment cycle.
Taiwan has risen on the strength of TSMC, the world's largest contract chipmaker, whose shares have jumped 49 percent this year; India has fallen as foreign capital, deterred by high valuations and a weakening currency, rotates out of its market and toward the chip-heavy economies of Northeast Asia and Taiwan.
TSMC's influence on its home market is difficult to overstate. The company accounts for roughly 42 percent of Taiwan's benchmark index, so its rally has lifted the entire market's standing. Bloomberg described the rise in Taiwan's value as an illustration of the AI-driven technology rally, noting that Taiwan and South Korea — both anchored in semiconductor and technology-hardware manufacturing — have benefited disproportionately.
"Taiwan's rise in market capitalization fundamentally reflects its high concentration in technology hardware," said Liao Yi-ping, a fund manager at Franklin Templeton, adding that the sector "sits at the center of the current AI investment cycle." Markets with limited exposure to technology hardware, he said, are increasingly being overshadowed by hardware-heavy ones such as Taiwan and South Korea.
A regulatory change has reinforced the trend.
Last month, Taiwan's financial authorities raised the ceiling on how much a domestic fund may hold in a single stock to 25 percent, from 10 percent. The rule applies only to companies that exceed 10 percent of the Taiwan Stock Exchange — a threshold currently met by TSMC alone — and JPMorgan Chase estimated the change could channel more than $6 billion into the market, almost all of it toward the chipmaker.
India's decline has been correspondingly steep. High valuations, a weakening rupee and inflation concerns tied to rising energy costs have driven foreign investors away, with global funds net-selling about $24 billion of Indian equities so far this year.
The country's benchmark index has fallen 8 percent, and should the trend persist, India could record its first annual decline in a decade. Its weighting in the MSCI Emerging Markets Index has slipped to roughly 12 percent, from 19 percent a year earlier.
The reshuffling is recent and closely contested. South Korea overtook Taiwan in market value earlier this month, on May 12, only for Taiwan to surge ahead of India by late May — a sequence that illustrates how narrowly the AI beneficiaries are now separated, and how quickly the order can change.
The shift in equity rankings does not, however, reflect the relative size of the underlying economies.
India's gross domestic product, estimated by the International Monetary Fund at about $4.15 trillion, is itself the world's fifth-largest and dwarfs Taiwan's roughly $977 billion.
That a market one-quarter the economic size can command a larger equity value points to the same concentration driving the rally: Taiwan's listed value is bound up overwhelmingly in a single global chipmaker, whereas India's broader, more domestically oriented economy is less exposed to the AI trade lifting markets elsewhere.
India's economy grew 7.8 percent last year, sustaining one of the fastest rates in the world.
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