TREE NEWS reports: The US memory chip index rose 9.2% and the Philadelphia Semiconductor Index climbed 5.5%, while the Nasdaq 100 gained 2.3% in preliminary close. CoreWeave jumped 24%, with Nebius, SanDisk, Micron and Arm up at least about 10% each. The S&P 500 rose 1.2% and the tech sector added 2.6%, while Microsoft fell 2.5% and Amazon lost 1.8%.
US memory chip index jumps 9.2% as Nasdaq 100 gains 2.3%
AI take
The dispersion is the story here: memory and AI-infrastructure names like CoreWeave and Micron rallied far harder than the broad tech sector, while Microsoft and Amazon slipped, suggesting the bid is concentrated in the compute and memory supply chain rather than megacap platforms. That gap matters because it signals where conviction is clustering within AI exposure. Whether this memory-led outperformance holds, or proves a single-session rotation, is the open question.
Generated by AI for reference only.
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