CXMT's Stock Soars 466% on First Trading Day, Focus Remains on Conventional DRAM Over HBM

China’s only mass-production DRAM manufacturer, ChangXin Memory Technologies (CXMT), experienced a remarkable 466% surge on the first day of its listing on the Shanghai Stock Exchange STAR Market. According to Luke James of Tom’s Hardware, the company’s stock ended its first trading day at 49 yuan, significantly up from its IPO price of 8.66 yuan, giving CXMT a market capitalization of approximately 3.3 trillion yuan (around $487 billion). This valuation places CXMT as the top company in the mainland Chinese market, surpassing the Industrial and Commercial Bank of China (ICBC).

Record-breaking IPO Raises 57.92 Billion Yuan

CXMT raised approximately 57.92 billion yuan (around $8.6 billion) through its IPO, marking one of the largest IPOs in Asia for 2026. According to Tom’s Hardware, CXMT’s prospectus outlines plans to allocate 29.5 billion yuan of the funds across three major projects: 13 billion yuan for DRAM technology upgrades, 9 billion yuan for next-generation DRAM research, and 7.5 billion yuan for improving memory wafer manufacturing lines. However, the use of the remaining 28 billion yuan, described as working capital, has not been specified.

No HBM Plans, Focus on Conventional DRAM

Notably, the prospectus does not include any dedicated projects aimed at High Bandwidth Memory (HBM), despite the rapid growth in demand for HBM in AI data centers. CXMT has chosen to focus its resources on increasing production of conventional DRAM. According to Tom’s Hardware, HBM offers a significantly lower bit yield per wafer—more than three times less compared to conventional DRAM. SemiAnalysis estimates that CXMT’s yield for its 8-Hi HBM3 is only around 25%. Additionally, CXMT’s bit cost for DDR5 is over 30% higher than its competitors, Samsung, SK hynix, and Micron, indicating that entering the HBM market would require significant yield improvements.

Ambitious Production Expansion Plans

SemiAnalysis estimates that CXMT plans to increase its monthly wafer input for DRAM by approximately 85,000 units by the end of this year. For comparison, SK hynix plans to grow by 60,000 wafers, Micron by 30,000, and Samsung by 15,000. CXMT’s expansion rate is among the fastest in the industry. If this pace continues, CXMT’s monthly production volume could reach about 350,000 wafers by the end of 2026, narrowing the gap with Micron’s total production capacity to within 25,000 wafers, according to Citrini Research models. Furthermore, CXMT’s new Shanghai plant, expected to begin mass production in 2027, will be two to three times the size of its headquarters facility in Hefei, further enhancing its presence in the global DRAM market.

Customers Secured Through 2027

According to Tom’s Hardware, CXMT’s production capacity is already fully booked through the end of 2027. DigiTimes reports that Dell, HP, Lenovo, and Apple are among its priority customers. Additionally, CXMT has signed server DRAM contracts exceeding $5 billion with ByteDance and $3 billion with Tencent. Server products accounted for 8.4% of CXMT’s total revenue in 2024, a figure expected to jump to 26.5% in 2025, reflecting the growing demand from data centers.

Divided Analyst Opinions

Analysts are split on CXMT’s valuation. Nomura initiated coverage with a “Buy” rating, setting a target price of 116 yuan—approximately 13.4 times the IPO price of 8.66 yuan. In contrast, Morningstar estimated CXMT’s fair value at just 14.90 yuan, less than a third of the first-day closing price of 49 yuan. Morningstar cited CXMT’s inability to access EUV (extreme ultraviolet) lithography tools as a risk factor. Nomura, however, projects CXMT’s share of global DRAM production to grow from around 10% currently to 18% by the end of 2028.

CXMT’s growth is seen as a symbol of China’s push toward semiconductor self-sufficiency. However, its decision to focus exclusively on conventional DRAM rather than entering the HBM market may run counter to the structural changes in the memory market driven by the AI boom. Depending on how it allocates its capital, CXMT could transition from being a mere follower to a dominant force capable of leading price competition in the industry.

Editorial Opinion

In the short term, CXMT’s aggressive production capacity expansion is likely to intensify price competition in the DRAM market. The entry of a Chinese player into a landscape dominated by Samsung, SK hynix, and Micron could drive down prices in existing markets like DDR5 and LPDDR5 through 2027. If CXMT leverages its cost competitiveness to gain market share, it could put pressure on the profitability of the three industry giants. However, restrictions on access to EUV technology may hinder its ability to achieve finer process nodes, casting a shadow over its long-term competitiveness.

From a long-term perspective, CXMT’s decision not to enter the HBM market raises questions about its approach to the evolving DRAM demand structure in the AI era. While demand for HBM3E and HBM4 in AI data centers is expected to grow rapidly, conventional DRAM, such as server-grade DDR5, is also likely to see stable growth. Whether CXMT will capitalize on its cost advantage and compete on production scale or eventually consider entering the HBM market remains to be seen, particularly after its Shanghai plant begins operations in 2027.

The editorial team also questions whether CXMT’s growth is overly reliant on large domestic customers in China, which may pose risks to its long-term sustainability.

References

• ” Chinese memory maker CXMT posts blistering 466% leap in Shanghai IPO — bulk of spending to be focused on DRAM production, no HBM in sight ”, by Luke James — Tom’s Hardware, 2026-07-27T11:48:56.000Z (ARR)
• Source URL: https://www.tomshardware.com/tech-industry/cxmt-closes-up-466-percent-in-shanghai-debut-with-no-hbm-project-in-its-ipo-prospectus