While the artificial intelligence revolution is often synonymous with household names like Nvidia, Microsoft, and Alphabet, a secondary layer of the AI ecosystem is quietly seeing massive growth. As the demand for computing power scales, the focus is shifting toward the specialized infrastructure—the hardware, connectivity, and data centers—that makes high-level AI processing possible.
Investors are increasingly looking toward “pick and shovel” plays: companies that provide the essential components required for the AI boom to function. Here are four lesser-known stocks that have shown significant performance in early 2026.
The Infrastructure Enablers: Optical Connectivity
For AI to work, massive amounts of data must move between servers at lightning speeds. This requires advanced optical technology to prevent bottlenecks in data centers.
Applied Optoelectronics (AAOI)
- Market Role: Produces high-speed optical transceivers used to connect AI servers and networking equipment.
- Performance: Has seen a staggering 339% year-to-date (YTD) gain, closing at $153.19 on April 13.
- The Outlook: Despite some market skepticism regarding long-term growth, analysts note that the company has secured “major program wins.” Specifically, wins with “hyperscalers” (massive cloud providers) suggest that AI capital expenditure is flowing directly into AAOI’s specialized hardware.
Coherent (COHR)
- Market Role: Specializes in high-speed datacom transceivers and optical components designed for heavy AI data traffic.
- Performance: Up 69% YTD, with a closing price of $307.93 on April 13.
- The Outlook: Analysts are divided on this stock, which suggests a higher level of volatility. While the consensus is a “moderate buy,” there is significant disagreement on valuation: price targets range from a low of $170 to a high of $375. This disparity indicates that while the technology is vital, the market is still debating the stock’s true premium.
The Manufacturing Backbone: Precision Production
As AI hardware becomes more complex, the ability to manufacture these components with extreme precision becomes a competitive advantage.
Fabrinet (FN)
- Market Role: Manufactures optical connectivity components essential for AI data centers.
- Performance: Up 52% YTD, closing at $689.89 on April 13.
- The Outlook: Fabrinet’s success is closely tied to the broader AI hardware cycle. Most notably, it serves as a primary manufacturing partner for Nvidia. As Nvidia expands its footprint, demand for Fabrinet’s specialized manufacturing services is expected to rise, leading analysts to recently raise their price targets significantly.
The Infrastructure Providers: Data Center Scale
Beyond the components, there is a growing need for the actual environments where AI models are trained and deployed.
Nebius Group (NBIS)
- Market Role: Develops large-scale, GPU-powered AI data centers.
- Performance: Up 85% YTD, closing at $154.56 on April 13.
- The Outlook: Nebius is positioned as a key provider for AI startups and individual users who need massive computing power. A significant factor in its growth potential is its relationship with the industry leader: Nvidia holds a stake of approximately 7.7% to 8.3% in Nebius, providing a strong signal of confidence in the company’s near-term trajectory.
Summary: As the AI sector matures, value is migrating from the software and chip-design giants toward the specialized manufacturers and infrastructure providers that enable high-speed data movement and massive-scale computing.
