ChangXin Memory Technologies (CXMT), China’s leading DRAM producer, made a historic debut on the Shanghai Stock Exchange on Monday, with shares skyrocketing nearly 470% from the IPO price of 8.66 yuan to open at 49.50 yuan. The surge briefly propelled the company’s market capitalization to approximately 3.3 trillion yuan ($487 billion), surpassing Industrial and Commercial Bank of China as the most valuable firm listed in mainland China. Only 6.73% of the enlarged share capital was freely tradable, a factor that likely intensified the opening volatility.
The IPO raised 57.92 billion yuan ($8.6 billion) in Asia’s largest offering of 2026, with an over-allotment option that could increase proceeds further. CXMT, the world’s fourth-largest DRAM maker with a 7.7% market share in 2025, primarily produces memory chips for smartphones, PCs, and servers, positioning itself at the center of Beijing’s push for semiconductor self-sufficiency. Analysts pointed to a structural AI-driven memory shortage as a key bullish driver. “Memory supply is still not enough,” said Nomura analyst Donnie Teng, forecasting CXMT’s DRAM production share could rise from about 10% to roughly 18% by 2028.
For Micron Technology, the IPO represents a hidden long-term threat. While Micron’s shares fell 6.9% on Friday to $920.95 before the debut, the infusion of capital into CXMT could fund aggressive expansion in conventional DRAM, directly challenging Micron’s commodity memory business. SemiAnalysis estimates CXMT’s wafer capacity could reach 350,000 starts per month by end-2026, approaching Micron’s 385,000, potentially placing it as the industry’s third-largest supplier. Although CXMT’s DDR5 cost per bit remains over 30% higher than top rivals, its growing scale may pressure global prices in price-sensitive markets. Micron retains a protective moat in high-bandwidth memory (HBM), where it holds a strong lead and plans HBM4E volume production by 2027, but the competitive landscape is shifting.
