CXMT shares surge 500% in Shanghai debut, valuing firm at over $500bn
The initial public offering raised $8.6 billion, with a tight float of 6.73% driving the sharp price increase amid strategic importance for China’s tech ecosystem.

Chinese memory chip manufacturer CXMT saw its shares surge nearly 500% on its initial public offering on the Shanghai Stock Exchange on Monday, establishing itself as China’s most valuable company by market capitalisation. The listing raised approximately $8.6 billion, valuing the firm at more than half a trillion US dollars and overtaking the Industrial and Commercial Bank of China.
The sharp price increase was largely attributed to a small initial float of just 6.73% of the company’s enlarged share capital. With the majority of shares locked up, the limited number of freely tradable shares available to the public likely magnified price swings and attracted strong turnover during the debut.
CXMT is viewed as a pivotal strategic asset for China’s domestic technology and artificial intelligence sectors. The company’s rise comes as Beijing seeks to bolster its indigenous capabilities in the face of ongoing US restrictions on advanced chip technology, positioning CXMT as a critical component of the nation’s efforts to develop its own tech ecosystem.
The listing occurs against a backdrop of broader market volatility, with investors closely watching the Federal Reserve’s meeting on Wednesday. Despite a recent retreat in crude oil prices away from triple-digit levels following a pause in strikes on Iran, futures still price in at least a one-in-four chance of a rate hike.
Global markets are also bracing for a packed earnings calendar, with a third of the S&P 500 set to report results this week, including major technology firms such as Apple, Amazon, Microsoft, Meta, and Qualcomm. Second-quarter US GDP estimates are also due, adding to the focus on economic data and corporate performance.


