Shares of China’s CXMT Corp surged 470% on July 27, 2026, during their Shanghai Stock Exchange debut, pushing the chipmaker’s market valuation to 3.3 trillion yuan ($487.3bn; £364.9bn) and making it mainland China’s most valuable listed firm despite global tech stock declines.
CXMT Corp’s explosive debut on the Shanghai Stock Exchange’s STAR Market saw its shares climb nearly 470% in the first trading session, catapulting the company to the top of China’s stock market by valuation. The surge lifted CXMT’s market capitalization to 3.3 trillion yuan ($487.3bn; £364.9bn), surpassing Industrial and Commercial Bank of China (ICBC) as the nation’s most valuable listed company according to the BBC.
IPO Details and Valuation Jump
The chipmaker’s shares opened at 49.50 yuan, up from an offering price of 8.66 yuan, with the first-minute rally propelling its market cap to 3.3 trillion yuan (S$628.24bn) — a sharp increase from US$85.5bn during the initial public offering (IPO) process straitstimes.com. CXMT, formally known as ChangXin Memory Technologies, raised 57.92 billion yuan in its IPO, with proceeds potentially rising to 66.61 billion yuan if an over-allotment option is fully exercised.
The valuation jump outpaced the more-than-doubling seen by China Resources New Energy after its US$3.6bn IPO earlier in July, according to the Straits Times. At the IPO price, CXMT was valued at 579 billion yuan before the possible exercise of the over-allotment option, making it one of China’s largest listed semiconductor companies the outlet reported.
Global Context and Market Dynamics
CXMT’s success contrasts with broader global tech market volatility. Despite a recent selloff in technology stocks, the chipmaker’s debut highlighted growing investor appetite for Chinese semiconductor firms. The company, founded in 2016 by Chairman Zhu Yiming, specializes in dynamic random-access memory (DRAM) chips used in AI data centers, mobile devices, and PCs the BBC noted.
South Korean giants Samsung Electronics and SK Hynix, along with U.S. firm Micron, dominate the DRAM market, collectively accounting for 90% of global production. SK Hynix recently raised $26.5bn in a New York share offering, the largest ever for a foreign firm in the U.S., and saw its market value top $1tn in May amid AI chip demand the BBC reported.
Liquidity Concerns and Market Implications
CXMT plans to use most IPO proceeds for chip production expansion and research, aiming to strengthen its position in a sector dominated by global players. The firm’s debut comes as Chinese authorities roll out measures to stabilize markets after a $1.5tn loss in recent weeks the BBC noted.
CXMT’s performance will serve as a barometer for investor confidence in China’s tech sector amid global market shifts. The company’s ability to scale production and compete with industry leaders like SK Hynix and Samsung will shape its long-term trajectory. Meanwhile, regulators and market participants will monitor liquidity impacts and broader implications for China’s financial stability straitstimes.com.
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