Markets
Arista Networks Reports Q3 Earnings
(Boris Roessler/Getty Images)

Arista Networks beats expectations, but stock dives on mediocre guidance

All those data centers are going to need a lot of switches and routers as well as GPUs.

Arista Networks, which makes electronic gear and software and services used to connect, run, and monitor data center servers and networks, reported better-than-expected Q3 results after the close of trading on Tuesday.

But the stock still plunged more than 10% in the aftermath of the report, as Tuesday’s ugly mood on Wall Street stretched into the after-hours session.

Here’s how the switch and router maker did:

  • Adjusted earnings per share of $0.75 vs. Wall Street expectations for $0.72, according to FactSet.

  • Sales of $2.31 billion vs. an expected $2.26 billion, per FactSet data.

  • A non-GAAP Q3 gross margin, a measure of how profitable a company’s core products are to produce, of 65.2% vs. the 64.2% FactSet consensus estimate.

  • Guidance for Q4 sales of $2.3 billion to $2.4 billion vs. the $2.33 billion expected on Wall Street.

  • Guidance for a Q4 non-GAAP gross margin of 62% to 63% vs. the 62.9% forecast.

Arista shares have rallied about 40% this year as networking equipment makers are seeing strong orders for the gear needed to fill the AI data centers hyperscalers like Amazon, Meta, and Microsoft are building. That gain has outpaced some rival router makers, like Cisco, which is up a bit more than 20%.

More Markets

See all Markets
markets

AMD posts top- and bottom-line beat in Q3 with Q4 sales guidance ahead of estimates

Advanced Micro Devices reported third-quarter results that exceeded analysts’ expectations on the top and bottom lines, with guidance to match.

  • Adjusted diluted earnings per share: $1.20 (compared to an analyst consensus estimate of $1.17)

  • Revenue: $9.25 billion (estimate: $8.74 billion, guidance: $8.4 billion to $9 billion)

  • Data center revenue: $4.34 billion (estimate: $4.14 billion)

  • Adjusted gross margin: 54% (estimate: 54%, guidance: 54%)

Its Q4 guidance for sales of $9.3 billion to $9.9 billion was strong relative to the anticipated $9.2 billion, while its adjusted gross margin outlook of 54.5% is bang in line with estimates.

Even so, shares are off about 2% in after-hours trading as of 4:24 p.m. ET.

“AMDs strong 3Q sales beat and 4Q outlook were likely driven by stronger PC and server CPU demand — similar to Intels results — along with continued share gains,” Bloomberg Intelligence analysts Kunjan Sobhani and Oscar Hernandez Tejada wrote. “The GPU ramp-up remains ahead of expectations, aided by a gaming rebound.”

AMD has had a high-profile Q4 so far, striking a megadeal with OpenAI that its CFO said “is expected to deliver tens of billions of dollars in revenue.” That announcement prompted more than 20 price target hikes from Wall Street analysts in a 24-hour span.

The company followed that up with a pact with Oracle, which said it would deploy 50,000 of AMD’s new flagship chips in data centers starting in the second half of next year. On the upcoming conference call, the Street will be looking for as much color as possible on the sales outlook for those MI450 chips.

Ahead of this release, Morgan Stanley analyst Joseph Moore wrote:

“The focus should remain on MI450. AMDs rack scale solution shipping next year is the key, and we are excited to see what the company can do. Its still early to make market share assessments, and while the Open AI agreement is clearly an accelerant, the reliance on cloud providers to ramp those 6 gigawatts still creates some uncertainty. Ultimately, to drive share gains, the company will need to provide better ROI than NVIDIA can offer, and customers still raise questions about that given lower rack density and the need to resolve ecosystem issues.

The chip designer was the third-best-performing member of the VanEck Semiconductor ETF in 2025 heading into this report, with shares having more than doubled year to date.

Latest Stories

Sherwood Media, LLC produces fresh and unique perspectives on topical financial news and is a fully owned subsidiary of Robinhood Markets, Inc., and any views expressed here do not necessarily reflect the views of any other Robinhood affiliate, including Robinhood Markets, Inc., Robinhood Financial LLC, Robinhood Securities, LLC, Robinhood Crypto, LLC, or Robinhood Money, LLC.