Micron Technology shares opened lower in pre-market trade, falling 3.6% to $960.24, as weakness rippled through the semiconductor sector following Broadcom’s fiscal second-quarter 2026 results released the prior evening. While Broadcom beat consensus on both revenue and earnings and issued a third-quarter guide above Wall Street estimates, investors focused on the company’s decision not to raise its full-year AI semiconductor revenue target of $100 billion - a development that raised concerns about the future pace of AI infrastructure spending and what that could mean for demand for high-bandwidth memory (HBM), Micron’s highest-margin product line.
Analyst activity around Micron delivered mixed signals. Morgan Stanley upgraded its price target for Micron, moving it from $520 to $1,050 the day before, pointing to persistent DRAM supply constraints it expects will endure for two to three years. Separately, Bernstein initiated coverage with a Buy rating. Those moves underscore a view among some research analysts of robust structural demand for memory over the longer term.
Company-specific confirmation of HBM progress added another constructive element. Nvidia CEO Jensen Huang, during a visit to South Korea, said that Micron, along with Samsung and SK Hynix, has secured HBM4 sample certification for the Vera Rubin AI platform. That certification is cited in market commentary as an important long-term positive for memory suppliers engaged in the AI hardware ecosystem.
Despite the analyst upgrades and the HBM4 certification announcement, negative sentiment catalyzed by Broadcom’s relatively muted AI outlook weighed strongly on trading. Some market participants interpreted Broadcom’s decision not to raise its AI revenue target as a signal that AI infrastructure spending could be plateauing, a dynamic that would directly affect demand for high-bandwidth memory and could pressure margins tied to that product category.
The broader market backdrop was mixed. The S&P 500 climbed 0.4% and the Dow Jones Industrial Average rose 1.7%, while the NASDAQ eased by 0.1%, reflecting concentrated weakness in the chip sector rather than a full-market correction. In Asian trading, Micron’s memory rivals, including SK Hynix and Samsung, experienced selling pressure and the KOSPI index registered sharp declines, reinforcing that the move was focused on semiconductors.
With Micron set to report earnings on June 24, some analysts flagged what they view as stretched valuation metrics ahead of the company’s results. Taken together, market participants cited Broadcom’s subdued AI guidance, heightened pre-earnings valuations, and a sector-wide reassessment of AI spending as the primary drivers behind Micron’s pre-market decline - even as company-specific developments continued to point toward enduring demand for memory in AI applications.
Key points
- Micron shares fell 3.6% in pre-market trading to $960.24 after investors reacted to Broadcom’s subdued AI outlook.
- Analyst activity included a Morgan Stanley price target raise from $520 to $1,050 and a Bernstein Buy initiation, reflecting differing market views on long-term memory demand and supply constraints.
- Nvidia confirmed Micron, Samsung, and SK Hynix received HBM4 sample certification for the Vera Rubin AI platform, a notable development for AI memory supply.
Risks and uncertainties
- AI infrastructure spending may slow or plateau - a development that would impact demand for HBM and other memory products and affect semiconductor sector revenues.
- Valuation sensitivity ahead of Micron’s June 24 earnings report could amplify share price volatility in the memory and broader chip sectors.
- Sector-specific selling, as seen in Asian markets with SK Hynix and Samsung, may continue to influence U.S.-listed memory stocks even when broader indices are mixed.