Advanced Micro Devices (AMD) and SpaceX (SPCX) both delivered blockbuster revenue growth in their latest quarterly reports. Investors responded by dumping both stocks in premarket trading Wednesday. AMD fell 8.6%, while SpaceX dropped more than 11%. The simultaneous selloffs, despite top-line beats, signal a sharp shift in market sentiment: in the artificial intelligence arms race, capital discipline now matters as much as ambition.
AMD’s second-quarter numbers were hard to fault on the surface. Revenue jumped 50% year-over-year to $11.53 billion, while adjusted earnings per share surged to $1.66 from $0.48 a year earlier, both comfortably ahead of consensus estimates. The data center business remained the primary growth engine, and chief financial officer Jean Hu forecast further acceleration in the second half. Third-quarter revenue guidance of approximately $13 billion, plus or minus $300 million, was in line with expectations. On paper, the quarter had few blemishes — yet that was not enough to prevent a sharp premarket decline.
Beneath the headline beat, several pressures weighed on AMD. Gaming revenue shrank 33% to $779 million, a reminder of how uneven the recovery remains across its product lines. More critically, capital expenditures nearly tripled to $808 million, while free cash flow contracted sequentially and current liabilities ballooned to $12.08 billion. Compounding these internal strains was a well-timed external blow: the same day, Elon Musk declared that SpaceX would exclusively use Nvidia GPUs, unveiling a joint project to develop the “Starmind AI” satellite payload built on Nvidia’s Rubin GPUs and Vera CPUs. The announcement reinforced expectations of Nvidia’s stranglehold on AI infrastructure, instantly reviving doubts about AMD’s ability to mount a credible challenge.
SpaceX faced its own version of the same contradiction. Total revenue exceeded $7.8 billion, up roughly 92% from a year earlier and 66% quarter-over-quarter. Adjusted EBITDA nearly tripled and operating losses narrowed significantly. On a conference call, chief executive Elon Musk outlined an exceptionally bullish trajectory: a $100 billion annual revenue run rate by the end of this year and a $1 trillion target by 2030, possibly as early as 2029. Yet shares were hammered premarket, underlining that the market is no longer content with distant promises when current spending is escalating dramatically.
The central anxiety for SpaceX is capital expenditure, which rocketed to $18.4 billion during the quarter, compared with about $10 billion in the first quarter and just $2.8 billion a year ago. Chief financial officer Bret Johnsen indicated that spending would remain at similarly elevated levels over the next two quarters. While management stressed that AI compute investments are generating a payback in less than a year and that deals with Anthropic and Google are already delivering over $2 billion per month in revenue, investors remain skeptical about the enormous cost of orbital data centers and the feasibility of launching them next year. Added to that uncertainty, 20% of locked-up insider shares become eligible for sale on August 6, creating an overhang of potential selling pressure.
The twin declines carry a unifying message: the market has raised the bar for AI-related capital spending. Morgan Stanley lifted its AMD price target to $465, but also flagged that the company issued more than $15 billion in warrants tied to two large clients — a cost that, if treated as a cash expense, would erode earnings over the next three to four years. SpaceX, meanwhile, must prove that its plans to scale compute capacity from 2 gigawatts this year to 10 gigawatts by 2027, and to put AI satellites into orbit, can translate into reliable profits rather than just ever-larger capital calls.
Strong revenue is no longer enough. Both AMD and SpaceX discovered this week that investors are now demanding a clear and credible path from enormous spending to sustainable earnings. The AI opportunity remains vast, but the market is voting with real money for capital discipline — and that is a signal no company in the sector can afford to ignore.
