Asian Chip Stocks Plunge as AI Funding Fears and Chinese Rivalry Spark Sell-Off

Key points

• SK Hynix shares fell over 10% and Samsung Electronics dropped 7.4%, both hitting their lowest levels since August.
• SoftBank Group declined 8.5%, dragging down Japanese tech peers like Tokyo Electron (-7.2%) and Renesas (-5.9%).
• The sell-off followed a 0.44% drop in the Nasdaq Composite and a 3.9% decline in Micron Technology.
• Chinese chipmaker CXMT announced progress on a new chip architecture designed to increase memory density.
• Intel and Broadcom CEOs warned that access to capital could become a major headwind for the AI boom.

Background

This volatility occurs amid a significant shift in capital flows. In 2026, foreign investors have withdrawn $131 billion from South Korean equities, the largest outflow among major Asian markets. The Kospi index has fallen 22% in the second half of the year, reversing its status as the world's top-performing market in the first half. This follows Samsung’s record Q3 operating profit of $80.1 billion, which still failed to prevent share declines due to high expectations and concerns about the sustainability of the memory supercycle.

How outlets are covering it

CNBC frames the decline as a reaction to intensifying competition from CXMT and warnings from Intel and Broadcom regarding capital access. However, analysts cited by CNBC, such as Vey-Sern Ling and Phillip Wool, argue that the market reaction is disproportionate to the immediate threat. They note that CXMT faces technology hurdles and has yet to demonstrate large-scale production, particularly in the HBM segment where Korean firms remain dominant. Yahoo Finance data highlights the severity of the drop, showing SK Hynix down 10.09% and Kioxia down 13.28%, but does not offer additional narrative context beyond the price movements.

Why it matters

The sharp correction signals that the AI trade is becoming vulnerable to competitive and financing risks. If investors reassess chip demand and pricing power, the volatility could persist. The event underscores the fragility of the current AI investment thesis, where even minor competitive advancements by Chinese firms can trigger broad market sell-offs, potentially affecting global semiconductor supply chains and capital allocation.

What to watch

Investors are watching a busy week of corporate earnings and U.S. inflation data for clues on interest rate outlooks, which often inversely correlate with growth stocks. The market will also monitor whether CXMT can scale its new chip architecture and if Korean chipmakers can maintain their pricing power and market share in HBM.