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Arista Networks, Inc. (NYSE:ANET) is one of the best stocks to buy for next-gen data centers. On May 5, the company reported Q1 2026 revenue of $2.71 billion, up 35.1% year over year, and guided for Q2 revenue of about $2.8 billion. CEO Jayshree Ullal said Arista is positioned at the “confluence” of secure client-to-campus-to-cloud and AI networking, which aligns with the company’s role, as AI data centers require faster, lower-latency, and more reliable network fabrics.

The update also highlighted Arista’s XPO high-density liquid-cooled pluggable optics, which are designed for next-generation AI data centers. Arista said XPO can reduce networking racks by up to 75% and save up to 44% of floor space compared with traditional pluggable optics, while enabling shorter cable runs and lower-power AI scale-up interconnect technologies. That matters because AI clusters are increasingly limited not only by compute, but by the bandwidth, power, cooling, and physical footprint needed to connect large GPU systems efficiently.

Arista Networks, Inc. (NYSE:ANET) provides cloud networking, data center switching, routing, campus networking, AI networking, automation, analytics, and security software for large enterprises, cloud, AI, and service provider environments.

While we acknowledge the potential of ANET as an investment, we believe certain AI stocks offer greater upside potential and carry less downside risk. If you're looking for an extremely undervalued AI stock that also stands to benefit significantly from Trump-era tariffs and the onshoring trend, see our free report on the best short-term AI stock.

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