SK Hynix Stock Crashes 9% as AI Fears Trigger Asian Tech Sell-Off Nauman Khan Tue, October 13, 2026 at 8:27 AM EDT MU -4.31% SKHY -4.53% 688825.SS -2.79% 9984.T -8.50% 005930.KS -7.39% Trade MU on Coinbase Trading disclosure Trading disclosure The above button links to Coinbase. Yahoo Finance is not a broker-dealer or investment adviser and does not offer securities or cryptocurrencies for sale or facilitate trading. Coinbase pays us for certain activity generated through this link. Prices displayed are informational.
Concerns about the sustainability of AI investment hit Asian technology stocks on Tuesday, sending several major chipmakers and technology-focused investors sharply lower as markets weighed intensifying competition and the cost of the AI buildout.
Japan's SoftBank Group (SFTBY) fell nearly 8%, while South Korea's SK Hynix (NASDAQ:SKHY) lost about 9% and Samsung Electronics (SSNLF) dropped around 6%.
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The declines came after Micron Technology (NASDAQ:MU) shed 3.9% on Monday in the U.S., where the Nasdaq Composite slipped 0.44%. The weakness suggests investors are becoming more cautious about companies whose valuations depend on continued growth in AI-related spending.
Memory-chip competition is adding to the uncertainty. China's ChangXin Memory Technologies is advancing in the sector, raising questions about how established producers may defend their market positions. For investors, the latest losses put attention on whether expected AI demand will translate into returns sufficient to justify current valuations.
