Movement Alert｜Roundhill Memory ETF Overnight Decline 5.03%, Long鑫 4F² DRAM Breakthrough Intensifies Competition Fears

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On October 13, Roundhill Memory ETF fell 5.03% Overnight, trading at $51.97/share, with Turnover of $50.15 million. The decline was driven by news that ChangXin Memory Technologies (CXMT) announced a key breakthrough in its 4F² DRAM architecture, intensifying market concerns over a more competitive memory chip landscape.

Reports indicate CXMT plans to launch server memory products based on this new structure by the end of 2026. The 4F² design allows higher memory density per chip compared to the mainstream 6F² structure, potentially reshaping supply expectations. The same day, South Korea's KOSPI index fell over 5%, triggering a Sidecar circuit breaker, while Samsung Electronics and SK Hynix both dropped more than 6%. SanDisk fell 3.45%, Silicon Motion 6.26%, Micron 4.04%, and SK Hynix 4.01%.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)

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