ChangXin Memory (CXMT) Stock Jumps 500% as AI Chip Demand Fuels Record Debut

TLDR

• CXMT surged over 500% on its first day of trading on Shanghai’s Star Market, becoming mainland China’s most valuable listed company.
• The chipmaker’s market cap hit approximately 3.65 trillion yuan ($540 billion), overtaking megabank ICBC.
• CXMT raised 66.6 billion yuan ($9.8 billion) in China’s biggest ever mainland tech IPO, beating SMIC’s 2020 record.
• Only 7% of CXMT’s stock was available for trading on debut day, which amplified the price surge.
• AI-driven demand for memory chips has created a global DRAM shortage, directly benefiting CXMT’s market position.

ChangXin Memory Technologies made one of the most explosive stock market debuts in recent memory on Monday, with its stock jumping more than 500% on the Shanghai Stock Exchange’s Star Market.

CXMT surged 466% in its Shanghai debut, turning China’s second-largest IPO into a $512.7B company and making it China’s 🇨🇳 most valuable listed firm, ahead of Tencent and Intel $INTC. pic.twitter.com/bTIAV2oDZy

- Wall St Engine (@wallstengine) July 27, 2026

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