Global Tech Selloff Intensifies as AI-Fueled Chipmaker Rally Reverses, Korea KOSPI Hit Hard

The Quick Take

• A global tech selloff led by chipmakers is dragging equities lower, reversing an AI-demand-fueled rally
• South Korean shares experienced a particularly sharp plunge as KOSPI fell amid semiconductor sector weakness
• The technology retreat reflects investor reassessment of AI chip valuations following an unprecedented rally period

A broad-based selloff in technology stocks is pulling global equities lower, led by a significant retreat in chipmaker shares that had surged to elevated levels on artificial intelligence demand expectations. The correction follows an unprecedented AI-driven rally in the semiconductor sector, where valuations stretched to pricing in multi-year growth at peak rates. South Korean equities bore particularly severe damage, with KOSPI declining sharply as Korean chipmakers including Samsung Electronics and SK Hynix — two of the world's largest memory chip producers — faced intense selling pressure from institutional investors reassessing sector multiples.

The chipmaker-led correction carries direct implications for the broader technology supply chain, from foundry operators like TSMC in Taiwan to equipment makers like ASML in the Netherlands. When AI chip demand expectations reset, the entire semiconductor ecosystem reprices simultaneously, creating correlated losses across otherwise diversified technology portfolios. For Canadian equity markets, the tech-heavy TSX Venture and large-cap technology positions within the S&P/TSX Composite face pressure from spillover selling as global fund managers reduce sector exposure. AI infrastructure and hyperscaler capex guidance will be closely scrutinized in upcoming quarterly earnings calls.

The key watchpoint is whether the current correction represents healthy consolidation within an intact AI investment cycle, or the beginning of a more sustained valuation reset. Monitor upcoming earnings from major AI chip designers including Nvidia and AMD — their revenue guidance and data center demand commentary will be the primary signal for whether institutional investors return to the sector on dips or continue reducing exposure. The macro variable that determines sector trajectory is the Federal Reserve's interest rate path, as higher long-term yields disproportionately compress the present value of growth-stock earnings projections in the technology sector.

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