South Korea · DeepSeek · Samsung · China · Crypto Briefing
South Korean stocks slide as DeepSeek model stokes memory chip demand fears
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Samsung and SK Hynix took the hit after DeepSeek claimed its new model needs far less high-bandwidth memory.
Key facts
- The spark was DeepSeek ’s V4.1-Flash model, released on September 10, 2026
- On or around September 11, 2026, Samsung shares fell about 3.5%
- Samsung and SK Hynix dropped roughly 9-11% during that stretch
- Analysts reported that the stocks were trading at depressed earnings multiples of roughly 2.6-3.1x, well below global peers
Summary
South Korean stocks fell as investors worried about two things: demand for memory chips, and how much longer the money for AI keeps flowing. The biggest casualties were the country’s chip giants, Samsung Electronics and SK Hynix. The spark was DeepSeek ’s V4.1-Flash model, released on September 10, 2026. HBM is the premium memory stacked next to AI accelerators so they can be fed data fast.