Shares of major memory chip companies including Micron Technology, SK Hynix, and Samsung Electronics fell sharply on Tuesday, extending a decline driven by concerns over artificial intelligence (AI) funding and heightened competition. Micron slipped 3.62%, with other memory-linked firms like SanDisk, Seagate, and Western Digital also experiencing losses. The sell-off was triggered in part by news from China’s ChangXin Memory Technologies (CXMT), which announced significant progress in a new chip design aimed at increasing memory density, potentially challenging established market leaders.

Despite CXMT's technological advancement, analysts point out that it still trails behind dominant players such as Micron, SK Hynix, and Samsung in both technology sophistication and production scale. Market experts interpret the sell-off as a reaction to fragile sentiment surrounding AI-related stocks, rather than a fundamental change in the competitive landscape. UBP’s Vey-Sern Ling highlighted that Chinese companies face ongoing challenges producing advanced memory like high-bandwidth memory (HBM), which currently remains under the control of South Korean firms.

Concerns about AI's long-term growth prospects and capital access also weighed on semiconductor stocks. Intel and Broadcom CEOs have flagged that obtaining sufficient funding might become a significant obstacle to the AI-driven surge in demand for computing infrastructure. Investors are closely watching upcoming U.S. inflation data and corporate earnings reports expected this week, which will influence interest rate expectations and impact growth-oriented stocks in the tech sector.

The sell-off was mirrored globally, with European and Japanese semiconductor stocks also falling. Key European chipmakers ASML, STMicroelectronics, and Infineon saw drops, while Japanese tech groups such as SoftBank—which holds a large stake in AI investments including OpenAI—experienced steep declines. Comments from Tesla and SpaceX CEO Elon Musk highlighting China’s ability to rapidly scale production once manufacturing challenges are overcome added to the cautious tone among investors across markets.