Chinese DRAM chipmaker ChangXin Memory Technologies (CXMT) became the most valuable company listed on a mainland Chinese exchange following a massive trading debut [1, 2].
This surge reflects the strategic importance of dynamic random-access memory (DRAM) during the global artificial intelligence boom. As AI applications demand higher memory capacities, CXMT is positioned as a critical domestic alternative to international chip providers.
Shares of the company rose between 466% [3] and 472% [1] during its debut on the Shanghai Stock Exchange's STAR Market on June 10, 2024. This rapid increase gave the chipmaker a market capitalization of approximately 3.31 trillion yuan, or US$489 billion [1]. Other reports placed the valuation at more than US$487 billion [2].
The company raised US$8.6 billion through its initial public offering [3]. Demand for the stock was high, with the IPO being oversubscribed 212 times [4, 1].
Retail investors drove much of the momentum during the listing process. The company received more than nine million orders [4], with the total value of those orders exceeding US$1 trillion [4].
The STAR Market is designed to support high-tech and strategic industries in China. The scale of this listing underscores the priority the Chinese government has placed on semiconductor self-sufficiency, particularly in the memory sector where foreign firms have historically dominated.
“CXMT became the most valuable company listed on a mainland Chinese exchange”
The massive valuation of CXMT signals a shift in the semiconductor landscape, where China is aggressively funding domestic memory production to reduce reliance on U.S. and South Korean technology. By securing nearly US$490 billion in market value, CXMT gains the financial leverage to scale production and R&D, potentially challenging the global DRAM oligopoly as AI integration continues to drive hardware demand.
