AMD Posts Record $11.5B Quarter but Falls 6% as SpaceX Names Nvidia Its Exclusive AI Chip Supplier

Record Numbers, Wrong Reaction

Advanced Micro Devices reported its best quarter in company history on Tuesday: Q2 2026 revenue of $11.5 billion, up 50% year over year, with non-GAAP EPS of $1.66 beating the $1.61 analyst consensus. Data center revenue hit $6.7 billion — more than double the year-ago figure — and now accounts for 58% of AMD's total sales. By any measure, it was a blowout quarter.

The market didn't care. AMD shares slid 6% to $486.60 as investors digested a piece of news that arrived almost simultaneously: Elon Musk, on SpaceX's inaugural public earnings call, announced that Nvidia would be the exclusive supplier of AI chips for a new orbital compute platform called Starmind.

What Is Starmind?

SpaceX introduced Starmind as an AI-1 payload designed to bring "datacenter class compute" into orbit. The platform will use Nvidia's Rubin GPUs and Vera CPUs — hardware from Nvidia's latest generation — and peak satellite computing capacity will reach 250 kilowatts. Musk described it as a fundamentally new approach to distributed AI inference, with compute nodes running above the atmosphere rather than in terrestrial data centers.

The exclusivity announcement was a direct blow to AMD, which had been positioning its MI-series accelerators as a credible alternative to Nvidia in large-scale AI deployments. SpaceX is a high-profile customer and a signal to other buyers about which chips are trusted for the most ambitious AI infrastructure projects.

Lisa Su Responds

AMD CEO Lisa Su addressed the news on the earnings call without conceding ground. She characterized SpaceX's choice as specific to one mission profile and reiterated that AMD's hyperscaler pipeline remains robust. "Our data center momentum across cloud providers is stronger than ever," she said, pointing to the doubled data center revenue as proof that AMD's competitive position in the broader market is intact.

Su's calm framing wasn't enough to stop the sell-off. Nvidia stock climbed 4% to $221.33 on the same day, with investors treating the Starmind deal as yet another validation of Nvidia's dominance at the frontier of AI infrastructure.

Context: The AI Chip Race

AMD has made genuine progress against Nvidia over the past two years, winning data center contracts with hyperscalers including Microsoft, Google, and Meta. Its MI450 accelerators, announced earlier this year in a reported $5 billion deal with Anthropic, represent the clearest sign yet that AMD can compete for flagship AI workloads. But Nvidia's grip on the most visible, most symbolic deployments — from consumer GPUs to orbital compute — keeps reinforcing its brand advantage.

For investors, the Starmind announcement raised a question that strong earnings alone can't answer: in the highest-stakes AI infrastructure decisions, does Nvidia still have a pull that AMD cannot match?

What Comes Next

AMD's guidance for Q3 2026 topped analyst estimates — a detail that would normally be the headline of any earnings report. Whether the stock can recover depends on whether the SpaceX narrative fades or grows. Musk has a history of making chip vendor decisions that resonate far beyond their direct dollar value. The Starmind announcement, whatever its commercial scale, has already done its work on market perception.

As reported by CNBC and Yahoo Finance, AMD Q2 2026 remains the company's strongest financial result ever. The question is whether the market chooses to see it that way.