Analysis
AMD shares fell as much as 9% this week not primarily because of its own results, but because of a single line from Elon Musk on SpaceX's earnings call: 'Going forward, we have decided to build exclusively on Nvidia, because we think the Vera Rubin architecture is the best architecture... We are exclusive to Nvidia,' according to [Investing.com](https://in.investing.com/news/earnings/amd-earnings-revenue-guidance-beat-estimates-but-shares-slip-over-7-after-hours-5534576).
Su's Response
AMD CEO Lisa Su brushed off the comments directly, telling CNBC she has 'tremendous respect for Elon and everything that he has done' and still expects to 'continue to partner over the longer term.' She pointed to AMD's own guidance as the more relevant signal: 80% year-over-year server revenue growth expected in the second half of 2026, and more than 70% growth guided for 2027 -- numbers that came alongside an actual Q2 beat on both revenue and profit.
When a Customer Comment Moves the Stock More Than Earnings
The reaction is a useful illustration of just how exposed chip stocks are to a single large customer's public architecture commitment right now, independent of a company's own disclosed results. AMD posted a clean beat and strong forward guidance in the same window Musk's comments hit the stock -- and the market still let the customer commentary dominate the reaction, a dynamic that puts real pressure on AMD to land its own marquee AI-infrastructure customer commitment to counter the narrative.
What to watch: whether AMD discloses any comparable large-customer commitment of its own in the coming weeks to offset the SpaceX-Nvidia headline, and whether Su's stated confidence in a longer-term SpaceX partnership is borne out in any actual disclosed order.
