Micron stock drops as CXMT advances chip technology

Oct 14 · President Cao Kanyu announces CXMT memory-cell architecture development Updated 03:00

Micron and SK Hynix stocks fell 5% on Tuesday, while SanDisk stocks slipped. In South Korea's KOSPI index, SK Hynix and Samsung Electronics fell 10% and 7% respectively, extending a five-session losing streak for both companies. Micron Technology's stock experienced its fourth consecutive session of declines on Tuesday, despite being up approximately 240% year-to-date. These declines follow an announcement by President Cao Kanyu at a Shanghai conference regarding CXMT's development of a cheaper memory-cell architecture designed for data center server products by late 2026. CXMT suggests this technology rivals advancements that competitors such as Samsung Electronics have pursued for years. The South China Morning Post reports that CXMT's new server memory product, based on 4F square cell architecture, is expected to launch later this year. Samsung, SK Hynix, and Micron, who control 90% of the global DRAM market, all reached $1 trillion valuations over the summer. Elon Musk questioned on X.com whether RAM manufacturing would follow the same scaling pattern as Chinese batteries and solar panels. Additionally, gnews_top reported that the KOSPI index dropped 6% and SK Hynix and Samsung Electronics both fell approximately 8%.

The market reaction suggests investors now view the 4F square architecture as a credible threat to the 90% market share held by the established trio. The focus has shifted from a general valuation shock to a specific timeline for disruption in the high-margin server and data center segments.

MarketWatch engages with the technical catalyst by citing the South China Morning Post regarding a potential product launch later this year. This adds a concrete timeline to the debate over whether CXMT can bypass equipment restrictions to achieve genuine dominance.

Yahoo Finance focuses almost exclusively on the financial correction and the unraveling of the AI memory trade. These reports omit the core technical tension, treating the 2026 target date as a trigger for a sell-off rather than a milestone requiring independent verification.

Bloomberg notes that the claims of surpassing industry leaders remain unsubstantiated. This highlights the gap between the market's panic and the lack of verified technical evidence, leaving the question of whether this is a genuine shift or a strategic assertion open.