After CXMT's 466% surge in Shanghai, analysts point to its technology gap with the memory giants

Shares in Chinese memory chipmaker ChangXin Memory Technologies (CXMT) surged nearly 466% on their trading debut on the Shanghai exchange on Monday 27 July 2026. The company had sought to raise up to $9.8 billion in its initial public offering, and the sharp gain fuelled optimism that Beijing's years long push for self sufficiency in semiconductors is beginning to pay off.

However, in analysis published on Friday 31 July, analysts said what will determine the company's fate is not investor enthusiasm but its ability to narrow the technology gap with Samsung Electronics, SK Hynix and Micron, particularly in high bandwidth memory (HBM), the backbone of AI processing. David Gibson of MST Financial said the listing does not change the outlook for the big three or the industry, because demand continues to exceed supply for everyone.

CXMT does not have access to extreme ultraviolet (EUV) lithography machines and, according to Gibson, needs about 30% more wafers than its competitors to produce the same amount of memory. MS Hwang of Counterpoint Research said the company is targeting HBM production from the end of 2026, and its initial products are likely to be HBM3 or HBM3E, leaving it one to two generations behind rivals already moving toward HBM4 and HBM4E.