Asian Markets Slide as Chip Selloff Hits Samsung, SK Hynix Ahead of Nvidia Earnings

Stock markets across East Asia opened sharply lower on Tuesday as a selloff in US semiconductor and technology stocks spilled over into the region's biggest chipmakers, with South Korea bearing the brunt of the decline.

Seoul Leads the Retreat

South Korea's KOSPI index tumbled more than 3% in early trade, briefly slipping below the 6,500 mark, as the country's two largest listed companies came under heavy selling pressure. Samsung Electronics fell more than 4% at one point before paring losses to trade down roughly 3-4%, while SK Hynix, the world's second-largest memory chipmaker, dropped as much as 6% before stabilizing at a similar 3-4% decline. Both stocks have been among the biggest beneficiaries of the artificial intelligence boom over the past two years, which has also made them among the most exposed when sentiment turns.

Nikkei Also Retreats

Japan's benchmark Nikkei 225 index followed a similar pattern, falling as much as 800 points, or around 1.3%, during the session before closing down a more modest 0.8% at just under 65,000. Electronics and semiconductor-linked shares led the decline in Tokyo as well, with traders citing a combination of factors beyond the chip rout: a weakening yen, elevated global bond yields, and renewed US pressure on Iran that has kept geopolitical risk elevated across markets.

What's Driving the Selloff

The immediate trigger appears to have originated on Wall Street overnight, where memory-chip names including Micron and SanDisk slid amid a broader reassessment of how much further the AI-driven rally in semiconductor stocks can run. That caution has now crossed the Pacific, with Korean and Japanese chip suppliers to global AI and data-center customers seeing some of the sharpest declines.

Much of the market's attention is now fixed on Nvidia, whose quarterly earnings report is due later this week. Nvidia's results and, more importantly, its commentary on demand for AI chips are widely seen as the next major catalyst for the sector. Analysts tracking the region noted that a strong report and upbeat guidance from Nvidia could help stabilize sentiment toward Samsung, SK Hynix, and other Asian suppliers, while a disappointing outlook could deepen the current pullback.

A Familiar Pattern

Tuesday's slide extends a choppy stretch for Asian tech shares that has played out repeatedly over the past several weeks, with sharp single-day drops followed by partial recoveries as investors oscillate between enthusiasm for AI-related demand and concern that valuations in the sector have run ahead of fundamentals. South Korea's market, heavily weighted toward memory-chip exporters, has proven especially sensitive to swings in US tech sentiment, while Japan's decline on Tuesday was comparatively contained thanks to broader diversification across its index.

For now, traders across the region appear to be treating the selloff as a risk-off pause rather than a decisive turn, with Nvidia's earnings widely expected to set the tone for whether chip stocks resume their advance or extend Tuesday's losses into the rest of the week.

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