Samsung Stock at 232,000 Won After China’s CXMT 4F2…
By Tobi Opeyemi Amure
AI summary of the source article
Samsung Electronics and SK hynix shares fell sharply, pulling the KOSPI down 5.46 percent, after China's CXMT announced plans to develop DDR5 server modules using a 4F2 DRAM cell structure by late 2026.
Why it matters
The fear is not that CXMT ships a 4F2 module this year. It is that a Chinese competitor could close the technology gap faster than the market had assumed, at a time when Samsung's earnings depend on memory prices staying high.
Key facts
- Samsung Electronics fell 7.39 percent to close at 232,000 won, and SK hynix declined 10.09 percent.
- The KOSPI lost 5.46 percent, prompting the Korea Exchange to trigger a sell-side sidecar that paused program selling for five minutes.
- CXMT announced plans for DDR5 RDIMM server modules based on a 4F2 cell structure by late 2026 without disclosing detailed specifications or launch dates.
Source excerpt · FinanceFeeds
Updated 13 October 2026. Samsung Electronics (KRX: 005930) closed Tuesday at 232,000 won , down 18,500 won or 7.39 percent, after trading as low as 228,000 won (Naver Finance, KRX close 15:30 KST). SK hynix fell 10.09 percent to 1,443,000 won and the KOSPI lost 5.46 percent to 6,035.35, triggering a sell-side sidecar. The trigger was China's CXMT saying it has made progress on a 4F2 DRAM cell and…