Group 1 - Arista Networks, Inc. (NYSE:ANET) is recognized as one of the best fast growth stocks to buy, with UBS reaffirming a Buy rating and a price target of $155, citing an optimistic forecast for 2026 [1] - UBS highlighted that investments in AI infrastructure by Meta, Microsoft, and Oracle, along with their capital expenditure plans for data centers, support Arista's initial CY26 revenue projection of a 20% increase, which is significantly higher than the company's usual guidance of mid- to high teens percentage growth [2] - Arista Networks specializes in multilayer network switches that facilitate software-defined networking in large-scale data centers, cloud computing, high-performance computing, and high-frequency trading environments [3]