SK Hynix, Samsung Electronics, SoftBank

Global chip stocks have experienced a massive $1.3 trillion sell-off, driven by investor concerns over the sustainability of AI infrastructure spending. Analysts suggest the decline is largely sentiment-based rather than a reflection of poor fundamental performance.
Why it matters
The volatility in semiconductor stocks highlights the market's sensitivity to the massive capital expenditures required for the ongoing AI boom.
The world's most valuable chip stocks have seen more than $1 trillion wiped from their market caps this week as investor jitters swept through the sector.
The selloff was led by Nvidia , which saw a $238 billion rout since market close on Friday. SK Hynix, Samsung Electronics and Micron — all key players in the memory space — lost $176 billion, $173 billion and $113 billion, respectively.
The chip sector has been one of the main beneficiaries of the AI boom, with investors piling into stocks as they looked to capitalize on the huge sums being funnelled into the sector.
The Philadelphia semiconductor index (SOX) — which tracks the 30 largest U.S.-traded companies involved in the chip sector — has risen 92% over the past 12 months, despite a nearly 20% drop over the past month.
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