• Elon Musk forecasts SpaceX (NASDAQ:SPCX) fourth-quarter revenue at approximately $24.8 billion, up ~70% sequentially and $2 billion above consensus, driven by AI infrastructure surpassing satellite connectivity as the largest revenue source.
  • Starlink remains the primary profit engine, but massive capital expenditures—$35–$40 billion planned for Q4—raise questions about cash generation and funding needs.
  • Potential merger discussions with Tesla (NASDAQ:TSLA) and regulatory developments add complexity to the growth narrative.

SpaceX is on track to report fourth-quarter revenue of about $24.8 billion, according to a projection from CEO Elon Musk, representing a roughly 70% increase from the prior quarter and coming in $2 billion above Wall Street estimates. The forecast, shared in a filing, underscores the company’s rapid expansion, fueled by its burgeoning AI infrastructure business, which has now overtaken satellite connectivity as the largest revenue contributor.

The third quarter provided a glimpse of that momentum. SpaceX reported revenue of $14.58 billion, up approximately 161% year over year, and net income of $4.4 billion, or $0.35 per share, reversing a year-earlier loss. The AI/Super Intelligence segment generated about $7.6 billion in revenue, more than double the $2.6 billion in the preceding quarter, while connectivity revenue rose 69% to $5.2 billion. Starlink added 1.6 million subscribers, bringing its total to 13.6 million.

But the headline-grabbing growth comes with a hefty price tag. Management expects capital expenditures of $35 billion to $40 billion in the fourth quarter, far exceeding the implied revenue for the period. That spending is aimed at scaling AI compute capacity, which is projected to reach 2.5–3 gigawatts by the end of 2026 and at least 13 gigawatts by the end of 2027. Power, cooling, and electrical infrastructure are identified as key constraints.

The gap between revenue and capex does not necessarily signal a cash-flow deficit—working capital and other factors also play a role—but it highlights the funding requirements and the need for investment returns to justify the aggressive buildout. SpaceX’s ability to finance this expansion will be closely watched, especially as competition intensifies across launch services, satellite connectivity, and AI infrastructure.

Adding to the strategic complexity, Musk revealed that SpaceX and Tesla have formed special committees of independent directors to discuss a potential merger. He cautioned that a transaction is not certain, but the mere possibility of consolidation between the two Musk-led companies has sparked speculation about synergies in AI, energy, and manufacturing.

Regulatory developments could also shape SpaceX’s trajectory. The FAA recently proposed streamlining commercial launch and re-entry regulations, which could ease approvals for SpaceX and competitors like Blue Origin. Meanwhile, SpaceX has challenged proposed satellite-power restrictions at the FCC, arguing they could hamper its Starlink Mobile service. The outcome of these proceedings will influence the company’s ability to deploy next-generation satellite constellations and expand direct-to-phone connectivity.

Investors initially cheered the third-quarter results, sending SpaceX shares up 7.5% in after-hours trading. Analyst Dan Ives called the results strong across metrics, highlighting accelerating Starlink performance. However, the stock has been volatile since its June 2026 IPO, falling 8% after the second-quarter report despite a revenue beat, suggesting that revenue growth alone may not satisfy concerns about profitability and cash flow.

The longer-term outlook hinges on execution. Management has guided for first-quarter 2027 revenue of $33 billion to $37 billion and has discussed an annualized revenue run rate of $500 billion to $1 trillion by the end of 2027—ambitious targets that would require flawless scaling of AI infrastructure and continued Starlink growth. The upcoming Starship test, which aims to recover both the booster and upper stage, is another critical milestone on the path to lower launch costs.

As SpaceX continues to redefine itself as a technology infrastructure giant, the balance between growth and financial discipline will be paramount. The fourth-quarter numbers, when reported, will provide the first clear test of whether the AI-driven revenue surge can be sustained without straining the company’s balance sheet.

Correction: An earlier version of this article misstated the sequential growth rate implied by the revenue projection. It is approximately 70%, not 70% year over year. The error has been corrected.