Micron Shares Slip as China’s CXMT Advances New Memory Chip

what happened

Memory-chip stocks came under pressure Monday after China’s ChangXin Memory Technologies, known as CXMT, reportedly made progress on a new product designed to hold more data. Dow Jones Newswires, citing Barron’s, reported that Micron shares were down 1.7% at $1,011 in premarket trading.

Micron had gained 261% for the year through Friday’s close, lifted by rising memory demand from the expansion of artificial-intelligence data centers. South Korean producers also weakened: SK Hynix American depositary receipts fell 1.5% before the open, while Samsung Electronics ended Monday’s session 4.4% lower.

CXMT President Cao Kanyu said at an industry event that the company intended to launch the product by the end of the year, according to the South China Morning Post, which cited a company statement. The chip uses a so-called 4F square design that fits more memory onto one chip. SK Hynix and Samsung are exploring the same configuration.

Investors have been concerned for some time that CXMT could disrupt the memory market. Its shares jumped 466% on their July trading debut, putting the company’s market value at just below $500 billion. At Monday’s close, CXMT was still China’s highest-valued company, ahead of Tencent and the banks China Construction Bank and Agricultural Bank of China.

why it matters

CXMT’s planned product is drawing market attention because it could increase competitive pressure in memory chips, a sector recently supported by demand from AI data-center expansion.

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