By Kristina Partsinevelos,Ari Levy
Publication Date: 2026-02-13 20:38:00
President and CEO of Arista Networks Jayshree Ullal
Scott Mlyn | CNBC
Shares of Nvidia and Advanced Micro Devices moved in opposite directions on Friday, after the CEO of Arista Networks told investors that her company is seeing some deployment shifting to AMD.
Nvidia’s stock fell almost 3%, while AMD gained close to 1%.
“A year ago, it was pretty much 99% Nvidia, right?” Ullal said on Arista’s earnings call late Thursday, when asked by an analyst about the company’s work with AMD. “Today, when we look at our deployments, we see about 20%, maybe a little more, 20% to 25%, where AMD is becoming the preferred accelerator of choice.”
The stock moves weren’t dramatic, but Ullal’s comments are notable because Nvidia has dominated the market for graphics processing units (GPUs) in AI since the industry started taking off a little over three years ago with the launch of OpenAI’s ChatGPT.
Nvidia currently has roughly 90% of the the market for AI chips, with challenges potentially coming from AMD as well as Google, which is seeing increased traction for its tensor processing units. Nvidia is the most valuable U.S. company, with a market cap of over $4.5 trillion. AMD is worth about $335 billion after an 85% jump in its stock price in the past 12 months.
Arista’s role in the AI infrastructure boom is in providing the Ethernet switching technology that connects powerful chips together. AMD announced late last year that it was partnering with Arista to build customized AI clusters that…
