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Did Rack Scale AI Networking Just Shift Arista Networks' (ANET) Investment Narrative?

Simply Wall St · 2d ago
  • Arista Networks recently launched an open Ethernet rack scale portfolio for AI data centers, adding liquid cooled racks that can connect up to 144 accelerators per rack and extend to 1,024 XPUs through cross rack designs, while supporting multiple AI interconnect standards on a common Netdi foundation.
  • The new Etherlink SU 144 architecture and ESUN based scale up approach give Arista Networks a way to address dense AI workloads using standards based Ethernet rather than proprietary fabrics, which directly ties into its focus on AI driven demand and high margin switching platforms.
  • We will now look at how Arista Networks' new Etherlink SU 144 rack scale Ethernet portfolio could influence its long term investment narrative.
Spot 55 AI infrastructure stocks that, like Arista Networks, are building the high bandwidth plumbing AI data centers need for dense accelerator racks and scale out compute.

Arista Networks Investment Narrative Recap

To own Arista Networks, you need to believe that Ethernet centric AI networking keeps gaining traction and that management turns its ESUN and Etherlink bets into durable demand across hyperscale and enterprise buyers. The new rack scale portfolio speaks directly to that thesis by targeting dense AI fabrics, but the longer dated ESUN revenue timing does not suddenly change near term expectations.

For the next few quarters, the key swing factor is still how steadily cloud and AI customers order high bandwidth switching and whether supply chain and component costs stay manageable. The biggest risk remains concentration in a handful of hyperscalers. Any pause in AI buildouts or regulatory friction around power hungry data centers could hit volumes and margins much faster than this new product set can help.

The most relevant recent development is Arista Networks’ raised 2026 outlook, which now includes about US$12.6b in total revenue with at least US$3.5b to US$3.6b from AI fabrics. The Etherlink SU 144 launch plugs straight into that goal because it expands the range of AI topologies Arista can serve using Ethernet instead of proprietary fabrics.

For you as a shareholder, the hinge is execution. Management has committed to multiyear chip and memory purchases tied to these AI platforms while not expecting meaningful ESUN scale up revenue until 2028. That creates clear operating leverage if demand holds up, but it also raises the risk of inventory and utilization pressure if AI buildouts slow or architectures evolve away from what Arista has tooled for.

Arista Networks’ current analyst narrative points to US$21.4b in revenue and US$8.2b in earnings by 2029, based on an assumed 26.6% yearly revenue growth rate. This implies earnings would rise by about US$4.2b from US$4.0b today.

Uncover why Arista Networks' fair value indicates a 32% potential upside to its current price, which could narrow quickly.

NYSE:ANET 1-Year Stock Price Chart
NYSE:ANET 1-Year Stock Price Chart

Exploring Other Perspectives

One bullish twist you may want to test against this new Arista Networks launch is the idea that tight networking supply is actually a hidden asset. The most optimistic analysts were already penciling in about US$25.2b of revenue and US$9.5b of earnings by 2029, before this announcement, which shows how far opinions can stretch. Use this product news as a prompt to compare those upper end forecasts with more cautious views and decide which story feels more realistic to you.

Explore 7 other Arista Networks fair value estimates, including one that suggests as much as 56% upside from the current price!

Decide For Yourself

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Looking For More Investment Ideas Beyond Arista Networks?

Once you have a view on Arista Networks, it can help to line it up against other opportunities that share some of the same qualities or offer a very different risk profile. The Simply Wall St Screener lets you do that in a structured way, so you can see where this stock really fits in your broader watchlist.

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.