5 Fastest-Growing AI Infrastructure Stocks to Buy

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 (NASDAQ:CRDO) provides high-speed, energy-efficient connectivity solutions for AI, cloud computing, hyperscale networks, optical and electrical Ethernet, and PCIe applications.