CXMT shares surge 466 per cent on Shanghai debut, valuing firm at $484 billion

Shares in Chinese memory manufacturer ChangXin Memory Technologies (CXMT) surged 466 per cent on their first day of trading on the Shanghai stock exchange, valuing the company at approximately $484 billion. The market reaction has propelled CXMT to become the most valuable listed company in China, according to reporting by The Wall Street Journal and CNBC.

The rally was driven by a global memory shortage and heightened demand from artificial intelligence firms seeking alternatives to keep costs low. While Samsung, Micron, and SK Hynix currently control the majority of the global memory market, device makers are increasingly looking for secondary suppliers to mitigate supply chain risks.

CXMT aims to challenge these industry giants, though it faces significant technological hurdles. The company revealed its first DDR5 RAM products last year, but reports indicate its technology remains roughly one generation behind the leading chips from its main competitors. Despite this gap, CXMT held an 8 per cent share of the global RAM market as of June 2026, according to data from Counterpoint Research.

Commercial interest in CXMT’s products is growing among major hardware manufacturers. Gigabyte has announced support for CXMT RAM in some of its motherboards, while reports suggest that Dell, HP, Lenovo, and Asus are exploring its products. This commercial expansion occurs against a backdrop of geopolitical tension, as the Pentagon has blacklisted CXMT.

Amidst these restrictions, a recent report from the Financial Times suggested that Apple sought permission from the Trump administration to purchase CXMT memory. Meanwhile, the broader memory sector continues to see significant market activity, with SK Hynix making a similarly notable debut on the US stock exchange earlier this month. Founded in 2016, CXMT’s debut marks a pivotal moment in the global semiconductor landscape.