• Wondering whether Arista Networks at around US$158.01 is still offering value or if you may be late to the story? This article walks through what the current price might be implying about the stock.
• The share price is up 11.6% over the past week and 18.3% year to date, although it is down 10.7% over the last month, after a very large 5 year return of about 7x and a 70.8% gain over the past year.
• Recent news around Arista has focused on its role in networking for cloud and AI data centers, as well as how investors are assessing its position in that part of the tech sector. This context helps explain why the stock has attracted attention after such strong multi year returns and mixed short term moves.
• Even so, Arista currently scores just 1 out of 6 on our valuation checks. The next sections will compare what different valuation approaches say about the stock today and then finish with a way to think about value that goes beyond any single model.

Arista Networks scores just 1/6 on our valuation checks. See what other red flags we found in the full valuation breakdown.

Approach 1: Arista Networks Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow, or DCF, model estimates what a stock might be worth by projecting future cash flows and discounting them back to today using a required rate of return. It is essentially asking what those future dollars are worth in today’s terms.

For Arista Networks, the model used is a 2 Stage Free Cash Flow to Equity approach. The company’s latest twelve month Free Cash Flow is about $5.33b. Analyst projections and extrapolations supplied to Simply Wall St show Free Cash Flow reaching about $9.58b by 2030, with a series of annual estimates between 2026 and 2035 that are discounted back to reflect the time value of money.

On this basis, the DCF output suggests an intrinsic value of about $152.19 per share, compared with the recent share price around $158.01. That implies the stock screens as about 3.8% more expensive than the model’s estimate, so it sits very close to the DCF fair value range rather than looking clearly cheap or clearly expensive.

Result: ABOUT RIGHT

Arista Networks is fairly valued according to our Discounted Cash Flow (DCF), but this can change at a moment's notice. Track the value in your watchlist or portfolio and be alerted on when to act.

Approach 2: Arista Networks Price vs Earnings

For a profitable company like Arista Networks, the P/E ratio is a useful anchor because it links what you pay for each share directly to the earnings the business is already generating. Investors generally accept that higher growth expectations and lower perceived risk can justify a higher P/E, while slower expected growth or higher risk usually calls for a lower, more conservative multiple.

Arista’s current P/E is about 53.48x. That sits above the Communications industry average of roughly 33.40x and below the peer group average around 68.01x, so the stock trades at a premium to the broader sector but not to all peers. Simply Wall St’s Fair Ratio for Arista is 49.03x. This is a proprietary estimate of what the P/E could reasonably be given factors such as earnings growth, industry, profit margins, market cap and specific risks.

Comparing against a tailored Fair Ratio is often more helpful than relying only on broad industry or peer averages because it is designed to adjust for Arista’s own profile rather than assuming all companies deserve similar multiples. With a current P/E of 53.48x versus a Fair Ratio of 49.03x, the stock screens as somewhat expensive on this measure.

Result: OVERVALUED

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Upgrade Your Decision Making: Choose your Arista Networks Narrative

Earlier it was mentioned that there is an even better way to understand valuation, so Narratives are introduced as a simple way for you to connect the story you believe about Arista Networks to a set of explicit forecasts for revenue, earnings, margins and a fair value, then compare that fair value to the current price to decide whether the stock looks attractive, fully priced or expensive.

On Simply Wall St’s Community page, Narratives are available as an accessible tool used by millions of investors. Each investor sets out their own story and assumptions, and the platform turns that into a financial forecast that automatically refreshes when new information such as earnings, guidance or major product announcements is added to the company’s profile.

For Arista, one investor might build a more cautious Narrative that leans closer to a fair value around US$149.15, based on assumptions such as revenue growth of 19.8% per year and a future P/E of 39.5x. Another might use a more optimistic Narrative that aligns with a fair value near US$207.51, tied to revenue growth of about 30% per year and a future P/E of 44.1x. The point is not which story is right, but that each Narrative makes the link from story, to numbers, to fair value completely transparent for you to judge.

For Arista Networks, however, we will make it really easy for you with previews of two leading Arista Networks Narratives:

Fair value: US$188.20

Gap to this fair value: the stock price is about 16.0% below this narrative fair value.

Revenue growth assumption: 23.0% per year.

• Sees Ethernet based AI data center networking and open standards as a key driver of long term revenue growth.
• Builds in strong contributions from software platforms, automation and enterprise expansion, with margins easing slightly from current levels.
• Relies on continued traction with large cloud and AI customers, while flagging customer concentration, competition and execution risk as the main watchpoints.

Fair value: US$127.06

Gap to this fair value: the stock price is about 24.4% above this narrative fair value.

Revenue growth assumption: 15.0% per year.

• Emphasises Arista as a high quality, debt free company with strong return on equity, but with a more cautious view on what fair value should be.
• Highlights the need for Free Cash Flow to roughly double over a few years, which is viewed as demanding even if achievable.
• Frames the stock as roughly in line with this lower fair value estimate, with the core appeal coming from balance sheet strength and profitability rather than a higher growth story.

Together, these two Narratives show how different assumptions about growth, margins and valuation multiples can lead to very different fair value ranges for the same stock. They also provide a clear starting point to decide which story, if either, feels closer to your own view.

Do you think there's more to the story for Arista Networks? Head over to our Community to see what others are saying!

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.