Space Stocks After the SpaceX IPO: What the Filings Say and What to Actually Watch
🚀 Space Stocks After the SpaceX IPO: What the Filings Say and What to Actually Watch
Welcome back, everyone! 📊 I’m your Quant Analyst, filtering out market noise using data, statistical modeling, and systematic insights. 👩💻✨
The space sector got its benchmark this June, and the mood since has been strange — the biggest listing in the industry’s history, followed by a broad drift lower. So I pulled the actual 10-Q data for six listed space companies from SEC XBRL rather than reading commentary. To cut straight to the chase: the thing to watch in this sector is not revenue growth or launch cadence — it is how many quarters of cash each company has left, and on that measure the ranking is not the one you would guess.
▲ Every one of these companies is spending today against revenue that arrives years from now. That gap is the whole investment case, and the whole risk
📌 First, the actual numbers
All figures are pulled from the companies’ own SEC filings via XBRL, for the quarter ended June 30, 2026 (Planet Labs: July 31). SpaceX reported revenue of $7,814 million, up 91.9% from $4,071 million a year earlier, with a net loss of $541 million and $93.5 billion of cash. Rocket Lab $234M revenue; Intuitive Machines $203M; Redwire $117M; Planet Labs $116M; AST SpaceMobile $32M. And on July 20, 2026 AST completed a $1.0 billion offering of 1.625% convertible notes due 2034.
Sources: SEC EDGAR company filings via the XBRL company-concept API; AST SpaceMobile Form 8-K, July 20 2026. Runway and free-cash-flow figures are my own calculations.
1. The mood: a benchmark arrived, and it did not lift everything
SpaceX listed on June 12, 2026, ran up to roughly $225, and has since traded back to around $148 — below its own first-day close. Its first public earnings report on August 4 showed that 92% revenue growth and a $541 million loss can sit in the same quarter without contradiction.
The obvious question is whether a listed SpaceX helps or hurts everyone else, and there is a real mechanism on each side. It helps by validating the sector and giving generalist funds a liquid way in — when I went through Q2 13F filings from nine large managers, six of them initiated SpaceX in a single quarter, roughly $4.4 billion combined. It hurts by giving those same funds somewhere better to put space exposure: if you can own the leader, the case for a speculative small-cap has to be much stronger than “the sector is exciting.”
Rather than guess which force wins, look at what actually separates these businesses.
2. The scale gap is larger than people picture
Quarterly Revenue, Logarithmic Scale
*From each company’s own 10-Q via SEC XBRL. Note the axis is logarithmic — on a linear axis the five bars on the right would be invisible.
SpaceX earns 244 times AST SpaceMobile’s revenue and roughly 33 times Rocket Lab’s. I had to plot this on a log scale because a linear one is unreadable. Treating “space stocks” as a single sector where a rising tide lifts all boats is therefore a category error: one company is an operating business at scale, and the rest are development projects with some revenue attached.
3. The number I would actually watch: quarters of cash left
Every company here spends ahead of its revenue, so the binding constraint is financing, not demand. I took each company’s Q2 operating cash flow, subtracted capital expenditure to get free cash flow, and divided the cash balance by the burn.
Cash Runway at the Current Burn Rate
*My calculation: June 30 cash divided by Q2 free cash flow (operating cash flow minus capex). AST’s figure includes the $1.0bn raised on July 20; without it the balance sheet alone implied 3.3 quarters.
| Company | Q2 revenue | Q2 free cash flow | Cash | Runway |
|---|---|---|---|---|
| SpaceX | $7,814M | −$12,505M | $93,522M | 7.5 quarters |
| Rocket Lab | $234M | −$110M | $2,129M | 19.3 quarters |
| Redwire | $117M | −$33M | $557M | 16.6 quarters |
| Planet Labs | $116M | +$26M | $415M | Cash-flow positive |
| AST SpaceMobile | $32M | −$695M | $2,288M | 4.7 quarters |
| Intuitive Machines | $203M | −$81M | $367M | 4.5 quarters |
Three things in that table are worth more than any price target.
SpaceX has $93.5 billion and under two years of runway. That sounds contradictory until you look at the components: first-half operating cash flow was +$3.5 billion, genuinely positive and up almost tenfold year on year — but capital expenditure was $28.5 billion over the same six months. The IPO raised the money and the build is spending it. This is a deliberate choice, not distress, and the company can raise again at will. But it does mean the $75 billion raise was not a cushion; it was a budget.
AST SpaceMobile burns more than twenty times its revenue. Revenue of $32 million against $695 million of quarterly free cash outflow is the most extreme ratio in the group, and the financing cadence shows it: roughly $2 billion of convertible notes raised in five months — $1.0bn in February and another $1.0bn on July 20, with an option for $150m more. That is not a criticism of the strategy; building a satellite constellation genuinely costs this. It is a statement about what you are underwriting if you own it.
Planet Labs is the one nobody discusses. It generated positive free cash flow this quarter. In a sector defined by burn, that is the rarest characteristic on the list.
4. Where this analysis is weakest
Four honest caveats
One quarter is a small sample. Capex in this industry is lumpy — a single launch campaign or satellite batch can double it — so a runway computed from one quarter overstates precision. Runway is not a deadline. Every company here can raise equity or debt, and several just did; the number measures financing dependence, not time until failure. Burning cash is the business model. Low burn can mean discipline or it can mean under-investment, and Planet Labs’ positive cash flow is only good news if it is not being bought with a shrinking growth rate. And the ranking flatters the slow. Rocket Lab looks safest at 19 quarters partly because Neutron has not reached full spend yet — the number will fall as that programme ramps, which is exactly what you would want to see.
5. So what would I actually watch?
- The financing calendar, not the launch calendar. For anything with under eight quarters of runway, the next capital raise is a more certain event than the next mission, and it is the one that dilutes you. Convertible notes are the sector’s instrument of choice right now — check the conversion price against where the stock trades.
- SpaceX capex as a sector indicator. A company spending $28.5 billion in six months is the largest customer and competitor many of these firms have. If that figure decelerates sharply, it tells you something about the whole industry’s demand assumptions before it shows up in anyone’s revenue.
- Whether operating cash flow turns positive before the cash runs out. That is the single transition that changes a company from financing-dependent to self-funding, and it is visible in the cash-flow statement a quarter or two before the market reprices it.
- Revenue per dollar of capex. Growth alone is meaningless when it is bought with unlimited capital. SpaceX at 92% growth while spending $28.5 billion is a very different proposition from the same growth on a flat capex base.
Quick FAQ
Q. Is SpaceX being down 23% this year a buying opportunity?
I can’t answer that for your portfolio. What I can say is which question decides it: whether that $28.5 billion of half-yearly capex converts into cash flow on the timetable the price assumes. The revenue growth is real and the operating cash flow is genuinely positive. The open question is the capital intensity, and that is a judgement about Starship and Starlink economics rather than about the chart.
Q. Are the smaller names doomed now that the leader is listed?
No, but the bar moved. The ones with a defensible niche and a path to self-funding — Planet Labs’ imagery data, Rocket Lab’s small-launch franchise and its Neutron option — are making a different argument than “space is growing.” The ones that need continual capital to reach first revenue now compete for that capital against a liquid, profitable-at-the-operating-line alternative.
Q. What would change your mind about the burn analysis?
Two quarters of capex data instead of one, which will arrive in November. If Rocket Lab’s runway drops toward ten quarters as Neutron ramps and AST’s burn falls as its constellation completes, my ranking inverts — and that would be the correct outcome, not a failure of the method.
💡 Quant Strategy & Takeaways
This is a financing-driven sector, so watch cash runway rather than launch cadence. SpaceX has $93.5bn and under two years of it at a $28.5bn half-year capex pace; AST burns 20x its revenue and has raised ~$2bn in converts in five months; Planet Labs is quietly cash-flow positive. The next raise is a more predictable event than the next mission.
When market volatility spikes, remove emotion and focus strictly on the numbers! 🤖
Do you look at cash runway before you buy a pre-profit company — or does the story usually win? Let me know in the comments! 📈✨
Disclaimer: This article analyses public SEC filings for educational purposes and is not financial or investment advice. Runway and free-cash-flow figures are my own calculations from a single quarter and are sensitive to lumpy capital spending; they measure financing dependence, not solvency. Always do your own research or consult a licensed financial advisor before investing.
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