CXMT skyrockets 466% on debut, becomes China's most valuable listed company
The memory chipmaker's record IPO stokes hopes and fears for broader semiconductor rally amid retail frenzy and liquidity concerns.
Talivio News · Global2 min read
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CXMT Corp., China's largest memory chipmaker, made a spectacular stock market debut, with shares surging nearly 466% and propelling it past Industrial and Commercial Bank of China to become the most valuable company listed on the mainland.
The company, which is the world's fourth-largest DRAM maker behind SK Hynix, Samsung, and Micron, priced its IPO at 8.66 yuan per share. Shares opened at 49.50 yuan and closed at 49 yuan, giving a market capitalization of about 3.3 trillion yuan ($487 billion). Trading volume exceeded 140 billion yuan, a single-day record for a mainland-listed stock.
The listing on Shanghai's STAR Market reignited debate over the impact of large IPOs on China's equity markets. The STAR 50 Index has slid almost 20% this quarter, and some analysts warned that CXMT's debut could pull cash from other technology stocks. The China Securities Regulatory Commission held meetings with market participants over concerns about fund diversion and issued a statement pledging to enhance market stability.
Only about 7% of CXMT's total shares were available for trading, with the remainder subject to lock-up restrictions. Analysts said the limited free float helped drive the massive first-day surge. The public tranche of the IPO drew 9.4 million individual orders totaling 7.07 trillion yuan, a subscription rate of 212 times the available allocation.
CXMT's IPO raised at least $8.6 billion, making it Asia's largest so far in 2025 and mainland China's biggest since Agricultural Bank of China's dual listing in 2010. Some sources reported the figure at $9.8 billion. Proceeds will be used to boost technological capabilities, primarily for memory wafer mass production and R&D projects.
The company is central to China's push for AI self-sufficiency, as advanced AI processors require massive amounts of high-speed memory, and a domestic supplier reduces dependence on foreign companies subject to U.S. export restrictions. CXMT has begun testing DRAM with Apple for devices sold in China, and major PC makers are exploring its products. However, its technology remains roughly one generation behind global leaders.
CXMT was founded in 2016 with an initial funding of 10 million yuan, backed by the Hefei city government. Hefei government-linked investors own 36.8% of CXMT, a stake worth 213 billion yuan at the IPO price — more than twice Hefei's annual revenue. The city's early bet epitomizes China's state-funded approach to building strategic industries. Founder Zhu Yiming, a Tsinghua graduate who studied and worked in the U.S., holds shares worth nearly 14 billion yuan.
Updates
CXMT aims to begin HBM production by late 2026, likely focusing on HBM3 or HBM3E, which analysts suggest could leave the company one to two generations behind competitors already moving toward HBM4. Nomura estimates that CXMT's global DRAM market share could rise from its current 10% to approximately 18% by the end of 2028. Additionally, the company's LPDDR6 memory chips have completed R&D verification, featuring a design speed of 12,800 Mbps.
CXMT is reportedly targeting HBM production starting from the end of 2026, though analysts suggest its initial HBM3 or HBM3E products may lag one to two generations behind competitors. While Nomura projects CXMT's global DRAM market share could grow from the current 10% to approximately 18% by late 2028, experts warn of potential low yields and performance gaps compared to industry leaders. Additionally, the company's LPDDR6 chips have completed R&D verification, featuring a design speed of 12,800 Mbps.
CXMT's IPO raised up to US$9.8 billion on the Shanghai Star board, propelling its market capitalization past 4 trillion yuan (US$592 billion). The company, which has been designated as a 'Chinese Military Company' by the US Department of Defense, aims to begin HBM production by the end of 2026 using its new Shanghai fab. Additionally, CXMT's LPDDR6 memory chips have completed R&D verification, featuring a 16Gb capacity and a base operating speed of 10,667 Mbps.
CXMT's IPO raised as much as US$9.8 billion on the Shanghai Star board, bringing its market capitalization to over 4 trillion yuan (US$592 billion). The company is reportedly targeting HBM production by the end of 2026, though analysts suggest its initial HBM3 or HBM3E products may lag one to two generations behind competitors. Additionally, the US Department of Defense has officially designated CXMT as a 'Chinese Military Company'.
CXMT's IPO raised up to $9.8 billion on the Shanghai Star board, pushing its market capitalization past 4 trillion yuan (US$592 billion). In a significant regulatory development, the US Department of Defense has designated the company as a 'Chinese Military Company'. Additionally, the firm is targeting HBM production by the end of 2026, though analysts suggest its initial HBM3 or HBM3E products may lag one to two generations behind industry leaders.
CXMT's IPO raised as much as US$9.8 billion on the Shanghai Star board, bringing its market capitalization to over 4 trillion yuan (US$592 billion). The company is reportedly targeting HBM production by the end of 2026, though analysts suggest its initial HBM3 or HBM3E products may lag one to two generations behind competitors. Additionally, the US Department of Defense has designated CXMT as a 'Chinese Military Company'.
CXMT's IPO raised up to $9.8 billion on the Shanghai Star board, driving its market capitalization above 4 trillion yuan ($592 billion) on Friday. The company is targeting HBM production by the end of 2026 through its new Shanghai fab, though analysts suggest its initial HBM3 or HBM3E products may lag one to two generations behind competitors. Additionally, the US Department of Defense has officially designated CXMT as a 'Chinese Military Company'.
CXMT's market capitalization surpassed 4 trillion yuan (US$592 billion) following its IPO, which raised as much as US$9.8 billion on the Shanghai Star board. The company is reportedly targeting HBM production by the end of 2026, though analysts suggest its initial products like HBM3 or HBM3E may lag one to two generations behind competitors already advancing toward HBM4. Additionally, the US Department of Defense has designated CXMT as a 'Chinese Military Company.'
CXMT's IPO raised up to US$9.8 billion on the Shanghai Star board, pushing its market capitalization above 4 trillion yuan (US$592 billion). Following the debut, shares of Micron Technology, Sandisk, and Western Digital fell due to investor concerns regarding China's potential to replicate DRAM progress in other storage markets. Additionally, the US Department of Defense has officially designated CXMT as a 'Chinese Military Company'.
CXMT's IPO raised up to $9.8 billion on the Shanghai Star board, driving its market capitalization past 4 trillion yuan ($592 billion). The company is targeting HBM production by the end of 2026 at its new Shanghai fab, though analysts note its initial HBM3 or HBM3E products may lag one to two generations behind competitors. Additionally, the US Department of Defense has officially designated CXMT as a 'Chinese Military Company.'
CXMT's IPO raised up to US$9.8 billion on the Shanghai Star board, bringing its market capitalization to over 4 trillion yuan (US$592 billion). The company is reportedly targeting HBM production by the end of 2026 using its new Shanghai fab, though analysts suggest its initial HBM3 or HBM3E products may lag one to two generations behind industry leaders. Additionally, the US Department of Defense has designated CXMT as a 'Chinese Military Company.'
CXMT's market capitalization has surpassed 4 trillion yuan (US$592 billion), making it the first semiconductor firm to hold the top spot in mainland China's 35-year stock market history and eclipsing the value of the world's largest lender by assets. The company's first-quarter revenue of 50.8 billion yuan marked a 719% year-on-year increase, and CXMT now expects first-half revenue to reach between 110 billion and 120 billion yuan. Additionally, the US Department of Defense has officially designated the firm as a 'Chinese Military Company'.
CXMT's market capitalization has surpassed 4 trillion yuan (US$592 billion), making it the first semiconductor firm to hold the top spot in mainland China's 35-year stock market history. This milestone allows the company to exceed the market value of the Industrial and Commercial Bank of China, the world's largest lender by assets. Additionally, the company expects its first-half revenue to reach between 110 billion and 120 billion yuan, representing more than a sevenfold increase from the previous year.
CXMT is targeting production of HBM by the end of 2026 at its new Shanghai fab, though analysts warn its initial HBM3 or HBM3E products will likely be one to two generations behind competitors. While the company's LPDDR6 memory chips have completed R&D verification for pilot production, experts note that CXMT still faces potential performance gaps and low yields due to a lack of EUV lithography access. Additionally, the company is in early-stage discussions to seek at least 60 million yuan in support for a potential new manufacturing facility in Beijing's Yizhuang district.
