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Taiwan’s total market cap reaches $4.14 trillion, overtaking the UK and moving to 7th worldwide, with TSMC alone accounting for about 45% of the value.
Taiwan’s equity market topped $4.14 trillion (≈ NT$131 trillion) on 16 May, pushing the island’s stock exchanges into the world’s seventh‑largest market, a leap driven largely by TSMC’s 45 % share of total market value【5】. The jump underscores the pivotal role of the semiconductor champion in the global AI‑driven growth cycle.
| At a glance | |
|---|---|
| Total market cap | $4.14 trillion (≈ NT$131 trillion) |
| TSMC share of market | ~45 % (≈ NT$45 trillion) |
| Index move | +395 points, +1.5 % |
| TSMC price | NT$2,085, up >18 % since April |
The Taiwan Stock Exchange’s combined listed and OTC market value rose to NT$131 trillion, surpassing the United Kingdom’s $4.09 trillion and placing Taiwan ahead of Canada’s $4.32 trillion in the global ranking【5】. TSMC’s own market capitalization hit NT$45 trillion, representing roughly 45 % of the total and delivering a 281‑point boost to the weighted index on the day of the record‑setting rally【1】. The broader index climbed 395 points to close at 26,378, a 1.5 % gain, while the semiconductor‑heavy electronic sector added 1,550.78 points and pushed its own market cap past NT$63.5 trillion【6】.
The surge coincides with a wave of AI‑related capital spending. Analysts note that AI infrastructure spend is projected to reach $660 billion by 2026, fueling demand for advanced‑process wafers where TSMC holds >90 % of global capacity【2】. The company’s first‑quarter revenue rose 39 % year‑over‑year to $35.9 billion, and its high‑performance‑computing (HPC) revenue share climbed from ~46 % to ~61 % in the latest quarter, reflecting rapid expansion of AI workloads【2】. These fundamentals have attracted both domestic and foreign investors, with three major institutional investors netting NT$324.6 billion in purchases on the day of the record market cap rise【6】.
TSMC’s market cap of NT$37.21 trillion (≈ $1.2 trillion) already placed it among the world’s most valuable firms, ranking seventh globally in market value behind Nvidia’s $5.2 trillion valuation【2】【4】. The combined market cap of South Korea’s two leading chipmakers stood at $1.5 trillion, still below TSMC’s single‑company value, highlighting the “new oil” narrative that positions advanced semiconductor manufacturing as a strategic asset【2】.
The record‑setting market cap illustrates how a single firm can reshape a national market’s global standing, but the sustainability of Taiwan’s newfound rank will hinge on continued AI‑driven demand and TSMC’s ability to expand capacity without triggering supply constraints.
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AI-assisted synthesis by the TrendWatcher Editorial Desk · sourced from 6 outlets · Jul 23, 2026 · How we report
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