AI growth is hitting bottlenecks in chips, memory, power, connectivity and cooling, and the Nasdaq-100 Technology Sector Index fell more than 5% in the past week. The article highlights seven companies tackling these constraints. Nvidia still faces GPU supply limits as it ramps Blackwell and Vera Rubin, while Micron, a high-bandwidth memory maker, reported fiscal fourth-quarter 2026 revenue of $54.23 billion versus $11.32 billion a year earlier. Lumentum guided to revenue of $1.225 billion to $1.275 billion for the next quarter, Coherent's data center and communications segment hit $1.615 billion, and GE Vernova reported $24.2 billion in orders. Bloom Energy's Oracle deal covers up to 2.8 gigawatts of on-site fuel cell capacity, and Vertiv supplies cooling systems, though expanding production remains a challenge.
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NVDAartificial intelligencesemiconductorsdata centers
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Related tickers and likely impact
NVDA
▲ Likely positiveNvidia
Relevance: low
| Market | US stocks |
|---|---|
| Sector | Information Technology |
| Industry | Semiconductors |
| Market cap | $5.2T |
| Close on 10/22/2026 | 212.28 |
| Change that session | -4.36% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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