CXMT surges 500% on Shanghai debut but its $490 billion valuation outpaces what the company can actually build
China's CXMT surged roughly 500% on its Shanghai STAR Market debut on July 27, raising $8.6 billion in Asia's biggest IPO of 2026 and briefly hitting a $490 billion market cap. But the Hefei chipmaker still holds over 98% of its revenue in commodity DRAM, lacks EUV access, and has no competitive high-bandwidth memory at scale , the chip that actually powers AI.