General view of CXMT office buildings is seen in Shanghai, China, on July 15, 2026, as CXMT raises billions for AI technology (Photo by Ying Tang/NurPhoto via Getty Images)Nurphoto | Nurphoto | Getty ImagesShares of chipmaker Changxin Technology Group rose about 470% Monday as they debuted on Shanghai's tech-heavy STAR Market, making CXMT the most valuable China-listed company. The Hefei-based company raised 57.92 billion yuan ($8.6 billion) after pricing its IPO at 8.66 yuan per share, making i...