In this article, we look at the 10 Fastest-Growing AI Infrastructure Stocks to Buy.
AI infrastructure has become one of the clearest revenue-growth engines in the technology market, driven by the buildout of compute, storage, memory, networking, power, cooling, and data-center capacity needed to train and run increasingly large AI models. IDC expects global AI infrastructure spending to reach $487 billion in 2026, up about 53% year-over-year, even after the market’s unusually sharp expansion in 2025. Gartner has also forecast worldwide AI spending to rise 47% in 2026, with AI-optimized servers and broader infrastructure buildouts accounting for a major share of that growth.
The scale of the investment cycle is now large enough to reshape several hardware and industrial supply chains at once. Dell’Oro Group expects global data-center capital expenditure to approach $1 trillion in 2026 and reach $1.7 trillion by 2030, largely because AI workloads require denser, faster, and more power-hungry infrastructure than traditional cloud computing. This has pushed growth beyond the most visible chipmakers and into memory, optical components, interconnects, servers, storage, contract manufacturing, and electrical equipment. For investors, the key question is no longer whether AI infrastructure is growing, but which companies are converting that spending boom into the fastest revenue growth without taking on unsustainable financial strain.
Methodology
For this article, we screened AI infrastructure companies across chips, servers, storage, networking, data-center equipment, cloud infrastructure, power, and cooling. We then selected the stocks with the highest reported year-over-year revenue growth. Companies with unusually heavy balance-sheet stress, large losses, or other material concerns were omitted from the list.
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10. Amphenol Corporation (NYSE:APH)
Amphenol Corporation (NYSE:APH) is one of the fastest-growing AI infrastructure stocks to buy. On June 11, 2026, Evercore reiterated Amphenol as a top AI data center infrastructure pick, pointing to its role in high-speed interconnects, connectors, cables, and power products used across increasingly dense AI systems. That is a strong investor angle, because it frames Amphenol as a picks-and-shovels supplier to the AI buildout rather than a peripheral electronics name.
The company’s recent results support that view. In the first quarter of 2026, Amphenol reported sales of $7.6 billion, up 58% year-over-year, while organic sales rose 33%. Orders increased 78% to a record $9.4 billion, giving the company a 1.24:1 book-to-bill ratio. Amphenol also generated $1.1 billion in operating cash flow and $831 million in free cash flow, which gives its AI infrastructure growth story more financial backing than more leveraged names in the space.
Amphenol Corporation designs and manufactures interconnect, sensor, antenna, cable, and connectivity products for information technology, datacom, automotive, industrial, aerospace, defense, broadband, and mobile network markets.
9. NVIDIA Corporation (NASDAQ:NVDA)
NVIDIA Corporation (NASDAQ:NVDA) is one of the fastest-growing AI infrastructure stocks to buy. In its fiscal Q1 2027 results, NVIDIA reported revenue of $81.6 billion, up 85% year-over-year, while data center revenue rose 92% to $75.2 billion.
On June 16, 2026, NVIDIA said NVIDIA XR AI was available in public beta, giving developers a framework for building multimodal AI agents for AR glasses and XR devices.
The release extends NVIDIA’s AI infrastructure story beyond hyperscale training clusters into edge and physical AI, where agents need low-latency inference, video and audio perception, enterprise retrieval, and orchestration across cloud, data center, and on-device systems. NVIDIA said the library connects XR device inputs with models, enterprise data, tools, and accelerated computing, while integrating services such as Metropolis, NeMo Retriever, Nemotron, Cosmos Reason, and DGX/RTX PRO systems.
Early use cases cited by the company include Siemens factory maintenance research, lab workflows from Rana’s LabOS, and surgical-assistance work at UPMC.
NVIDIA Corporation provides accelerated computing platforms, chips, systems, and software for AI, data centers, digital twins, gaming, professional visualization, automotive, robotics, and other high-performance computing markets.
8. Dell Technologies Inc. (NYSE:DELL)
Dell Technologies Inc. (NYSE:DELL) is one of the fastest-growing AI infrastructure stocks to buy. On June 1, 2026, Dell said it had become the first company to ship systems built on NVIDIA’s Vera Rubin platform, delivering Dell PowerRack systems with PowerEdge XE9812 servers based on NVIDIA Vera Rubin NVL72 to CoreWeave.
The shipment strengthens Dell’s AI infrastructure position as the market shifts from individual GPU boxes toward integrated rack-scale systems that combine compute, networking, storage, power, and cooling for production AI workloads. Dell said PowerRack is designed, tested, and delivered as a single unit, with systems able to move from delivery to production in under 6.5 hours and deliver up to 10 times lower cost per token than Grace Blackwell NVL72 for large-scale agentic AI inferencing. That same rack-scale AI demand was visible in Dell’s fiscal Q1 2027 results, reported on May 28, when revenue rose 88% year-over-year to a record $43.8 billion, and AI-optimized server revenue jumped 757% to $16.1 billion.
Dell Technologies Inc. provides servers, storage, networking, PCs, software, cloud, edge, security, and services for enterprise, public-sector, consumer, and data-center customers.
7. Lumentum Holdings Inc. (NASDAQ:LITE)
Lumentum Holdings Inc. (NASDAQ:LITE) is one of the fastest-growing AI infrastructure stocks to buy. On June 11, 2026, J.P. Morgan reiterated an Overweight rating on Lumentum and argued that investor concerns around co-packaged optics adoption were overstated. The firm pointed to continued progress from NVIDIA and broader customer interest in co-packaged and near-packaged optics, keeping Lumentum closely tied to the optical layer of AI data centers. That layer is becoming more important as AI clusters require faster, lower-latency links between chips, switches, racks, and data halls.
Lumentum’s recent growth already reflects that demand shift. In its fiscal third-quarter 2026 results, the company reported revenue of $808.4 million, up 90% from $425.2 million a year earlier, while GAAP net income improved to $144.2 million from a net loss of $44.1 million. Management also highlighted co-packaged optics and optical circuit switches as future earnings drivers.
Lumentum Holdings Inc. provides optical and photonic products for cloud networking, AI data centers, telecom, industrial, and sensing applications.
6. Astera Labs Inc. (NASDAQ:ALAB)
Astera Labs Inc. (NASDAQ:ALAB) is one of the fastest-growing AI infrastructure stocks to buy. On June 3, 2026, Astera Labs said it had expanded its Taiwan operations and Cloud-Scale Interop Lab, strengthening engineering, operations, and coordination with customers and ecosystem partners in one of the world’s key semiconductor supply-chain hubs.
For AI infrastructure, time to revenue increasingly depends on validation work near the companies building rack-scale systems, because CPUs, GPUs, switches, retimers, cables, firmware, and diagnostics have to function as deployable platforms rather than isolated parts. Astera Labs Inc. said the expanded lab would support collaboration with AMD, Arm, Intel, NVIDIA, GIGABYTE, Ingrasys, Inventec, Quanta Cloud Technology, and Wiwynn to shorten product-development, debugging, and qualification cycles. The same demand for faster rack-scale deployment was visible in Q1 2026, when Astera’s revenue rose 93% year-over-year to $308.4 million, driven by demand for its PCIe 6 portfolio.
Astera Labs Inc. provides rack-scale AI infrastructure through purpose-built connectivity solutions, including CXL, Ethernet, NVLink Fusion, PCIe, UALink semiconductor technologies, and COSMOS software for scale-up and scale-out connectivity.
5. Super Micro Computer, Inc. (NASDAQ:SMCI)
Super Micro Computer, Inc. (NASDAQ:SMCI) is one of the fastest-growing AI infrastructure stocks to buy. On June 11, 2026, Supermicro priced equity and equity-linked financing transactions that, together with a planned at-the-market program, represented a total potential equity raise of $7.0 billion. Super Micro Computer said the capital would help fund component purchases tied to roughly $39 billion of advanced AI server orders received in recent weeks from more than 20 customers, including orders for its Data Center Building Block Solutions.
Close-up of Silicon Die being Extracted from the Semiconductor Wafer and Attached to the substrate by the Pick and Place Machine. Computer Chip Manufacturing at Fab. Semiconductor Packaging Process.
That order base underscores Supermicro’s position in rack-scale AI infrastructure, where server demand is expanding quickly but also requires heavy working-capital support. The same dynamic was visible in fiscal Q3 2026, when net sales rose to $10.2 billion from $4.6 billion a year earlier, while cash used in operations reached $6.6 billion and total bank debt plus convertible notes stood at $8.8 billion.
Super Micro Computer, Inc. provides application-optimized servers, AI systems, storage, networking, liquid-cooling infrastructure, software, and support services for enterprise, cloud, data-center, 5G, edge, and embedded markets.
4. Credo Technology Group Holding Ltd (NASDAQ:CRDO)
Credo Technology Group Holding Ltd (NASDAQ:CRDO) is one of the fastest-growing AI infrastructure stocks to buy. On May 28, 2026, Credo completed its acquisition of DustPhotonics, adding silicon photonics photonic integrated circuit technology to its optical connectivity portfolio. The deal deepens Credo’s exposure to the optical layer of AI infrastructure, where hyperscale clusters need faster, lower-power connections across scale-out and scale-up networks.
Credo said the acquisition expands its portfolio across 800G, 1.6T, and 3.2T near-packaged optics and co-packaged optics, while giving the company a more vertically integrated stack spanning SerDes, digital signal processing, silicon photonics, and system integration. The company also said the combined portfolio of ZeroFlap optical transceivers, optical DSPs, and silicon photonics products is expected to become a significant growth driver in fiscal 2027. That strengthens the context around Credo’s fiscal Q4 2026 results, reported on June 1, when revenue rose 157% year-over-year to $437.0 million.
Credo Technology Group Holding Ltd provides high-speed, energy-efficient connectivity solutions for AI, cloud computing, hyperscale networks, optical and electrical Ethernet, and PCIe applications.
3. Micron Technology, Inc. (NASDAQ:MU)
Micron Technology, Inc. (NASDAQ:MU) is one of the fastest-growing AI infrastructure stocks to buy. On May 22, 2026, Micron said it had started manufacturing 1-alpha DRAM at its Manassas, Virginia, fab, calling it the most advanced memory technology ever produced in the United States. The expansion is highly relevant for AI infrastructure because memory supply has become a strategic bottleneck across data centers, networking, industrial systems, vehicles, and edge devices as AI workloads spread beyond centralized training clusters.
Micron said the Manassas investment would quadruple its DDR4 wafer supply at the site, while its broader U.S. investment plan spans approximately $200 billion across Virginia, Idaho, and New York. The company’s latest reported quarter shows why that capacity push is tied to demand rather than optics: fiscal Q2 2026 revenue rose to $23.86 billion from $8.05 billion a year earlier, with operating cash flow nearly tripling to $11.90 billion.
Micron Technology, Inc. provides memory and storage products, including DRAM, NAND, NOR, high-bandwidth memory, SSDs, and related solutions for data centers, AI, cloud, consumer, mobile, automotive, and industrial markets.
2. SanDisk Corporation (NASDAQ:SNDK)
SanDisk Corporation (NASDAQ:SNDK) is one of the fastest-growing AI infrastructure stocks to buy. On May 12, 2026, reports highlighted SanDisk’s open-source SPRandom technology, a method designed to cut SSD preconditioning for ultra-high-capacity drives from days to hours. SSD preconditioning is not a consumer feature; it is an operational bottleneck for data centers, where drives need stable, predictable I/O behavior before being placed into production.
SanDisk Corporation says SPRandom can accelerate development and qualification, while conventional approaches can take more than 144 hours for a 128TB SSD and just over 6 hours with SPRandom. That fits the company’s AI storage thesis because inference, retrieval, and GPU-centric workloads depend on consistent access to large datasets, not just raw compute resources. The demand backdrop was visible in SanDisk’s fiscal Q3 2026 results, when revenue rose 251% year-over-year to $5.95 billion, and data-center revenue specifically rose 645%.
SanDisk Corporation develops, manufactures, and provides NAND flash-based data storage devices and solutions, including SSDs, embedded products, removable cards, USB drives, wafers, and components for consumers, enterprises, and public cloud customers.
1. Nebius Group N.V. (NASDAQ:NBIS)
Nebius Group N.V. (NASDAQ:NBIS) is one of the fastest-growing AI infrastructure stocks to buy. On June 8, 2026, Nebius said it would invest approximately £1.7 billion to build AI capacity in the UK through three new NVIDIA infrastructure deployments, while expanding its commercial and AI R&D hub in London. Nebius Group said the UK deployments would reach 65 MW when fully ramped in 2027, adding domestic compute capacity for enterprises, researchers, and public-sector users.
The expansion fits the company’s broader AI cloud strategy, where revenue growth depends on bringing contracted power and GPU capacity online quickly enough to meet demand for training, inference, and agentic AI workloads. In Q1 2026, that capacity-led ramp was already visible, as group revenue rose 684% year-over-year to $399.0 million, while Nebius AI cloud revenue increased 841% to $389.7 million and accounted for about 98% of total group revenue.
Nebius Group N.V. is an AI cloud company that provides full-stack infrastructure, compute, storage, networking, inference, data, and agentic AI services for developers, startups, enterprises, and AI builders.
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