CXMT’s IPO: why a 470% first-day surge isn’t free money
Chinese memory chipmaker CXMT saw its share price jump nearly 470% on its Shanghai debut, after the largest capital raising in Asia this year. Behind the spectacular number lies a core market mechanism: the price set in an initial public offering is not yet a market price.
The fact
On July 27, shares of Chinese memory chipmaker CXMT jumped nearly 470% on their debut on the STAR Market, Shanghai’s tech-focused board. Priced at 8.66 yuan, the stock traded around 49 yuan during the session. The company had just raised 57.9 billion yuan ($8.6 billion), Asia’s largest initial public offering this year.
Why it deserves attention
A jump of nearly 470% does not mean the company became nearly six times more valuable in a few hours. It reveals, first, that the IPO price was never a market price: it was set in advance by the company and its banks, for a limited number of shares. When demand massively exceeds that supply, the first traded price soars. Here, institutional demand exceeded the shares on offer by more than 500 times. The secondary market, where investors trade shares among themselves, is what discovers the real price.
The demand itself is strategic. CXMT embodies China’s push to make its own memory chips, in a market dominated by Samsung and SK Hynix (South Korea) and Micron (United States). With about 7.7% of the global DRAM market in early 2026, according to Counterpoint Research, the newcomer is still small. Yet its market value, about 3.3 trillion yuan during the session, already made it China’s most valuable listed company, according to CNBC.
A share worth nearly six times its offer price within one session is not an anomaly: it is a mechanism. To understand how markets set prices, read the Fundamental: “Financial markets: how stocks, bonds and prices work.”
You’ll learn what a share and an initial public offering really are, how market makers and liquidity keep prices moving, and why the risk-return trade-off guides every investment decision.
Read the Fundamental →
