US Top News and Analysis | AI boom reshuffles global stock market pecking order as South Korea and Taiwan surge

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The article explains that the artificial‑intelligence boom is reshaping the global hierarchy of stock markets, propelling Taiwan and South Korea past several long‑established Western exchanges. Using HSBC data, it notes that Taiwan has overtaken Canada to become the world’s sixth‑largest market and South Korea has leap‑frogged the United Kingdom into eighth place, with market capitalisations now around $4.7 trillion and $4.4 trillion respectively. This rapid ascent is driven by an extreme concentration of capital in AI‑linked semiconductor firms—TSMC accounts for more than 40 % of Taiwan’s market, while Samsung Electronics and SK Hynix together represent over 42 % of South Korea’s Kospi. Analysts describe the shift as a “AI hardware” theme that makes these indices proxies for the semiconductor sector, but warn that such concentration creates portfolio‑level risk and could make the gains vulnerable to reversals. The reshuffling mirrors past cycles where markets like China and India rose swiftly, underscoring how the AI boom is concentrating market power in economies at the core of the semiconductor supply chain.

Read more: https://www.cnbc.com/2026/05/20/global-market-reordering-is-accelerating-as-the-ai-rally-gains-pace.html

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