Samsung, SK Hynix Shares Fall as China's CXMT Narrows Memory-Chip Gap

Shares of Samsung Electronics and SK Hynix fell after China's Changxin Memory Technologies (CXMT) flagged progress in memory-chip development, a segment where South Korean firms have long held a commanding lead. The same session saw declines in Apple suppliers Luxshare Precision Industry and Foxconn Industrial Internet, suggesting the worry extended beyond the two Korean chipmakers into the broader electronics supply chain. Memory chips — the semiconductors that store data in phones, computers and servers — are a market Samsung and SK Hynix have controlled for years, alongside U.S.-based Micron. Any credible advance from a Chinese competitor threatens pricing power and market share built over more than a decade. What remains unclear is how far CXMT's technology actually is from matching Samsung and SK Hynix's current output, and whether its progress translates into shipped volumes investors should price in now versus years from now.