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    Arista Networks (ANET) Following Its Q2 Beat, Is The AI Networking Story Still Undervalued?

    Simply Wall St·09/04/2026 05:27:13
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    Arista Networks (ANET) is back in focus after reporting Q2 2026 results that topped earnings and revenue estimates, supported by demand in AI, cloud, and enterprise networking, as well as management's upbeat guidance.

    Arista Networks shares are trading at US$191.44 after a 2.87% 1 day share price gain. While the 7 day share price return is down 4.80%, momentum over the past quarter and year to date remains strong, with share price returns of 24.09% and 43.29% respectively.

    Compare Arista Networks' AI networking momentum with a hand picked set of 55 AI infrastructure stocks that are tied to the same build out in data centers and cloud capacity.

    After the latest Q2 beat and a strong run over the past year, Arista Networks now asks a simple question of new money: Does the current valuation still leave enough upside to justify the risks from here?

    Most Popular Narrative: 20.8% Undervalued

    Arista Networks most followed narrative points to a fair value of about $241.82 per share, compared with the latest close at $191.44, and anchors that gap in long run AI networking demand and margins.

    The migration of AI networking from proprietary standards (InfiniBand, NVLink) to open Ethernet solutions is expanding Arista's addressable market, expected to drive sustained multi-year revenue growth as hyperscalers and enterprises favor open, scalable architectures for both back-end and front-end AI clusters.

    Read the complete narrative.

    Want to see what sits behind that growth story? The narrative leans on faster top line expansion, firm margins, and a rich future earnings multiple. Curious which specific assumptions have the most impact on that $241.82 fair value.

    Result: Fair Value of $241.82 (UNDERVALUED)

    Have a read of the narrative in full and understand what's behind the forecasts.

    However, there are still real pressure points for Arista Networks, including heavy reliance on a handful of large AI and cloud customers, as well as rising competitive heat from Cisco and NVIDIA.

    Find out about the key risks to this Arista Networks narrative.

    Another View on Arista Networks Valuation

    While the popular AI narrative sees Arista Networks as about 20.8% undervalued, the picture looks different when using simple earnings multiples. The stock trades on a P/E of 59.7x, which is well above the US Communications industry at 33.5x, the peer average at 52.2x, and even the fair ratio of 40.9x. That gap suggests investors are already paying a premium for the story, so how comfortable are you with that valuation risk if sentiment cools?

    See what the numbers say about this price — find out in our valuation breakdown.

    NYSE:ANET P/E Ratio as at Sep 2026
    NYSE:ANET P/E Ratio as at Sep 2026

    Next Steps

    With sentiment split between optimism and caution around Arista Networks, act while the details are fresh and study the data yourself. Then weigh up the 3 key rewards and 1 important warning sign

    Looking for more investment ideas beyond Arista Networks?

    If you stop with Arista Networks, you could miss other opportunities. Take a few minutes to scan fresh ideas that might better match your goals.

    This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.