Taiwan Moves Past India to Become the World's Fifth-Largest Stock Market, Powered by TSMC's AI Surge

Taiwan's equity market capitalization has climbed to about $4.95 trillion, narrowly topping India's $4.92 trillion and lifting Taiwan to fifth place globally. The move is overwhelmingly tied to one stock: Taiwan Semiconductor Manufacturing Company (TSMC). Valued at roughly $1.8 trillion to $2.1 trillion, the chipmaker now makes up an estimated 42% to 45% of Taiwan's main equity benchmark. With TSMC up 49% year to date, Taiwan has effectively jumped ahead of multiple national markets. Updated global rankings now place equity markets in this order: the US, China, Japan, Hong Kong, Taiwan, then India. Taiwan first surpassed the UK (around $4.13 trillion) in mid-April, moved past Canada later that month to take sixth, and has now overtaken India to complete a rapid series of gains. India had held the fifth spot for an extended period, supported by sustained foreign inflows. Recently, that momentum has weakened as foreign portfolio investors have pulled capital, earnings growth in key sectors has cooled, and India has less direct exposure to the AI supply chain that is currently driving returns in Taiwan. TSMC sits at the center of the AI hardware buildout, producing advanced chips used in products ranging from Nvidia's data center GPUs to Apple's latest processors. Rising AI workloads have accelerated demand for leading-edge fabrication, and the market's re-rating reflects expectations that AI-related hardware demand will continue to compound with TSMC at a critical chokepoint. The flip side is concentration risk. With a single stock representing more than 40% of a national benchmark, any slowdown in AI spending or a flare-up in geopolitical tensions around the Taiwan Strait could unwind Taiwan's market gains as quickly as they arrived. For investors, big AI infrastructure budgets signaled by Microsoft, Google, Amazon, and Meta reinforce the spending pipeline that ultimately feeds into chipmakers and TSMC's fabs. India's slide also highlights a broader shift: markets that are not deeply embedded in the AI supply chain may find it harder to attract and retain global capital, as some allocators rotate from broad growth exposure into more concentrated semiconductor-linked positions. With a market approaching $5 trillion and heavily concentrated in one of the semiconductor industry's most strategically important companies, Taiwan's ascent is both a standout market success and an increasingly relevant source of systemic risk for global investors.