How Much?
source:Yahoo Finance
SpaceX has roughly $100 billion in cash — an enormous cushion by almost any standard.
Sounds like plenty… until you start pricing Elon Musk’s plans.
His spending list keeps growing. Starship is scaling. Starlink is expanding. And SpaceX is pushing into an AI compute buildout.
All of that requires capital — a lot of it. And for investors, the question is becoming more about what it will cost to get there.
KeyBanc analyst Michael Leshock put a number on it:
Another $325 billion.
That’s how much he estimates SpaceX may need to raise over the next 18 to 24 months as the company expands its AI compute capacity.
And the calculation: 1 GW of AI capacity.→ Roughly $50 billion. → SpaceX could want six or seven.
Suddenly, that $100 billion cash pile looks a little different.
Here’s the math.⇩
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$50 Billion × Seven.
1 KeyBanc’s math starts with one number:
$50B / GW – The industry benchmark for building AI data-center capacity
2 Then comes SpaceX’s expected scale:
6–7 GW – Potential compute capacity by the end of 2027 — below the more aggressive 8–9 GW estimates previously modeled
3 Put those together:
$250–300B – Estimated cumulative capital required for the buildout, before any cost advantages SpaceX might achieve
4 Then factor in SpaceX’s existing cash, spending needs and the pace of the buildout:
~$325B – KeyBanc’s estimate for additional capital SpaceX could need to raise over the next 18–24 months
Source: KeyBanc / Michael Leshock, via Yahoo Finance · August 17, 2026
Put simply, the $325 billion estimate is the cost of scale.
At roughly $50 billion per GW, getting to six or seven gigawatts adds up quickly.
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The Funding Gap.
What $325 billion actually means in context.
Put $325 billion in perspective. It’s not simply a large capex number — it would represent multiple rounds of financing over a relatively short period.
If KeyBanc’s estimate is close, SpaceX’s next phase would depend not only on building the infrastructure, but also on maintaining access to enormous amounts of capital while that buildout is underway.
That adds another variable to the investment case: how much SpaceX can build, how quickly it can monetize it, and how much outside capital it takes to get there.
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And The Stock? Up↑
While the projected capital bill is getting bigger, the stock has been recovering.
✱ SpaceX SPCX ( ▲ 4.3% ) was roughly 41% above its August 3 intraday low in less than two weeks, extending its rebound following the post-earnings selloff and lockup-related volatility.
That creates an interesting split: KeyBanc is modeling hundreds of billions in future financing needs while investors are pushing the stock higher.
For now, the market appears willing to look past the size of the bill.
The next question is what SpaceX can deliver for it.
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Q2.
The number that changed the math:
Second-quarter capex came in at roughly three times Wall Street’s estimate, showing that the buildout is already moving at a much more capital-intensive pace than analysts had expected.
SpaceX also stopped short of providing specific 2026 guidance, leaving analysts to estimate how quickly that spending could grow from here.
KeyBanc’s $325 billion forecast is one attempt to answer that question.
Flight 14↓
SpaceX expects Starship to fly again this month, with Flight 14 testing another important piece of the company’s long-term plan: making the system rapidly reusable while deploying upgraded Starlink satellites.
The bigger target is cadence.
Musk said SpaceX expects Starship flights to increase rapidly, adding that “probably a year from now, we will be doing at least 1 flight a day, possibly more.”
One flight a day would require a very different operating model from today —
→ faster turnaround,
→ reliable recovery and
→ hardware that can be flown repeatedly rather than replaced.
Every dollar of the $325 billion capital question ultimately depends on whether reusability milestones like this one actually land on schedule.
The Most Skeptical Voice:
Piper Sandler cut its target from $156 to $140 on August 4, keeping a Neutral rating.
Two concerns stand out:
→ First, the firm raised its own FY27 capex forecast to roughly $65 billion — about $17 billion higher than its prior estimate, underscoring just how much the spending picture keeps expanding even among cautious analysts.
→ Second, Piper flagged that SpaceX’s AI cloud contracts remain cancelable despite being highly profitable — meaning future revenue is less predictable than the headline numbers suggest, since customers aren’t locked in the way a normal long-term contract would lock them in.
The first concern reinforces what KeyBanc is seeing: analysts are raising their estimates for how much SpaceX may have to spend.
The second is about what sits on the other side of that spending.
If AI infrastructure requires tens of billions in upfront capital while some customer contracts remain cancelable, investors have less certainty around how much future revenue is locked in against those investments.
That means the capital commitments and customer commitments don’t necessarily carry the same level of certainty.
Short sellers, meanwhile, haven’t made a large bet against the story. Short interest stands at just 2.67% of shares — though with SpaceX only recently public, there isn’t enough history yet to read too much into that figure.
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