CXMT Stock Pops 471% on Shanghai STAR Market, Crypto Traders Proved Accurate

ChangXin Memory Technologies (CXMT), a Hefei-based DRAM maker, listed on China's Shanghai STAR Market on July 27, 2026. Its stock opened at ¥49.58, a staggering 471% above the ¥8.66 IPO price set nine days earlier.

The listing created roughly ¥3.32 trillion ($490 billion) of market value in a single call auction, making CXMT one of the most valuable listed companies in China on its first morning of trading.

A closer look reveals that an unregulated crypto derivatives market had priced CXMT stock within 16% of the open price days before the bell. This is significant because Chinese IPO pricing operates under valuation conventions that keep issue prices well below where the secondary market clears, resulting in a pop that is more of a feature of the system than a forecasting failure.

The on-chain traders priced CXMT stock using pre-IPO perpetual contracts on crypto venues such as Hyperliquid. These synthetic contracts carried no shares, dividends, or voting rights but expressed an opinion about what CXMT stock was worth by a pool of traders that China's primary market deliberately excluded.