Rocket Lab and AST SpaceMobile Are Priced for the Big Bang. One Space Stock Already Delivered.

Ask most investors to name a space stock, and they'll say SpaceX (SPCX). Ask them why, and the answer is almost always the same: rockets. 

Reusable boosters, dramatic landings, Starlink, Mars talk – you name it, and SpaceX has either done it or is planning to do it. And I can’t blame investors for defaulting to the Elon Musk-led company when looking into potential investments. I admit, rockets are the most exciting part of the space industry. 

But did you know that the launch is just an opening scene – the overture, if you will – to an even bigger industry? Space exploration isn’t limited to putting things into orbit. Rockets and satellites need to be built… and then once they’re up there, what do you do with them? 

That’s exactly why the real space business goes beyond your “regular” rocket launch. Infrastructure, communications, data collection, defense, meteorological applications, scientific experiments – all of these could be monetized. And in some cases, customers are willing to pay month after month for such a service. 

So here’s the thing. A "space stock" is not just a "rocket company.”

Some space companies are selling you the dream – the rocket that isn't finished yet; the network that hasn't gone live; the future that hasn't quite arrived. 

Others are already cashing the checks: profitable, growing, and priced like it.

Today, let's look at three space stocks that go beyond launching rockets; explore how each one monetizes the industry at large; and more importantly, figure out which side of that trade you're actually being asked to take.

Rocket Lab Stock Trades at 82X Sales While Neutron Stays Grounded

Rocket Lab (RKLB) is the closest thing on this list to being a mini-SpaceX, and it knows it. Founded in 2006, the company has two rockets in operation: Electron, for sending smaller cargo into low-Earth orbit (LEO); and HASTE, a modified Electron rocket used for hypersonic test flights. 

It also has Neutron under development, a mid-sized reusable rocket set to compete with SpaceX’s popular Falcon 9. The project’s been delayed a couple of times recently – not an altogether unusual issue with rocket companies, but Rocket Lab did lose a bit of confidence here. 

In fact, after its Q2 2026 report, the stock dropped 8% despite record revenue and a strong backlog - all because it came without a solid Neutron announcement. 

The reaction is understandable – Neutron is a big step up from its current Electron target market. You see, Neutron would push Rocket Lab into the medium-lift launches, the tier where the real money is, in commercial constellations and national security work. 

A confidential customer had already booked five Neutron missions by May 2026, though the rocket still has to prove itself in flight before that backlog means anything. 

And a proposed acquisition of Iridium Communications (IRDM) would give Rocket Lab a profitable satellite business with about 2.6 million subscribers already on the books, plus genuinely scarce spectrum.

Now, so far, all this sounds like your typical rocket company, right? 

Well, the Q2 financials are where the story changed for many investors. 

Rocket Lab operates in two segments: Services, which encompasses its space launches, and Products. The latter covers the hardware and components Rocket Lab provides to other companies and space agencies, including satellite components, solar power systems, flight software, and other technologies used to build and operate spacecraft. It’s basically a pick-and-shovel infrastructure play on the space industry.

In Q2, the company reached a record $234 million in revenue, up 62% year over year. Of that $234 million, 22.5% was from the Services segment. 

That means Products accounts for over three-quarters of the company’s revenue and accounts for a huge chunk of its growth. 

You see how that changes the story? 

Rocket Lab is no longer dependent on the number of launches they do in a year, unlike some rocket companies. It now has a broader, more diversified revenue base through demand for satellite and spacecraft components. 

But there’s a problem: just like SpaceX, many investors already know about Rocket Lab. And when a small company like this gets popular, traders tend to pile onto the opportunity. That typically means elevated valuations and volatile stock prices. 

Case in point: Rocket Lab traded between $37 and $151 just this past year, and is now trading near the lower end of that range. 

Meanwhile, its price-to-sales ratio – the valuation metric that compares the company’s revenue per share against its stock price – is at 82x. That means investors are paying $82 for every $1 of revenue the company is earning. 

And if you think that’s expensive, well, consider that the sector’s median price-to-sales value is 2x. So based on that, RKLB is trading 4,000% higher than the sector median. 

This might be a snapshot of today, but the problem is that it’s been like that for a while. And by the looks of things, Rocket Lab will look massively expensive for the foreseeable future. 

Oh, and did I mention? Rocket Lab is not profitable yet. And according to sources, it won’t be until 2027. 

That's the trade-off with owning a story everyone already believes in. Rocket Lab's business has genuinely gotten stronger and more diversified, but the stock isn't priced as "stronger and more diversified." 

Right now, you’re paying for years of flawless execution across the board. Neutron, the Products segment, Iridium – they all need to work for Rocket Lab’s current share price to make sense. 

And the problem with market expectations is that they’re like a finish line that keeps moving farther and farther away. Sure, record quarters are nice, but investors will expect the same thing next quarter. And the next. And the next. And the – you get my point. 

Eventually, strong, and even exceptional execution can look like a disappointment simply because the finish line has moved too far. 

So that’s Rocket Lab. Part launch company, part infrastructure play. 

Now let’s look at a different opportunity in the sector – namely, monetizing satellite services.

AST SpaceMobile Stock Trades at 390X Revenue with Zero Service Sales

Many investors familiar with the space satellite sector will likely think of AST SpaceMobile Inc. (ASTS). 

The company’s pitch is simple: With AST, your phone never loses signal again. Not on a hiking trail, not on a highway three hours from the nearest tower, not anywhere. AST builds the satellite network, partners with your carrier, and you get signal everywhere. 

And the best part? You don't even need new hardware.

But how does the business work? 

Well, it's simple. AST completely sidelines the consumer market and instead offers its services to mobile service providers in a business-to-business (B2B) arrangement. 

That approach is one of the best things about AST’s narrative. By not offering its services directly to consumers, they avoid the massive cost, complexity, and competition that comes with building a customer-facing business. No need to put up billboards or build stores and online platforms. No need to wrestle with existing and entrenched providers just to get a small slice of their existing customer base. 

And so far, the strategy works. More than 60 mobile operators, representing more than 3 billion subscribers, have already signed on for AST’s services. 

And the speed? The company’s connection clocked nearly 100 megabits per second (Mbp/s) on an ordinary smartphone. That’s fast enough for video calls and streaming with zero special hardware. 

Meanwhile, its satellite constellation keeps growing. So far, the FCC has cleared AST to fly up to 248 satellites over the U.S.

That’s an exciting story so far. 

So what’s the catch, you ask? 

AST has no service revenue yet, even though it’s been in operations since 2017. It did report $31.5 million on its top line for Q2 2026, but that revenue came from government contracts and other non-Service activities, rather than the SpaceMobile cellular service it ultimately plans to monetize.

So all of this – the pitch, the satellite launches, the partnerships – are still the opening act. And it’s easy to realize that a good story isn’t the same as a good business. 

The key risk is that nothing is proven yet. AST still has to demonstrate that it can deploy enough satellites, maintain reliable coverage, get carriers to activate the service, and turn those partnerships into meaningful recurring revenue. 

So it’s a bet. Big deal, right? Every stock you buy is a bet on its future. 

Sure, but you’re not betting pennies here. 

Remember when I said Rocket Lab was trading at 82x its revenue? 

Well, AST is trading at 390x. 

At 390x, the market is essentially saying: we believe the future is going to be enormous.

And maybe it will be.

But when you're paying hundreds of times current revenue, there's very little room for the future to disappoint.

That's the key difference between AST and a company that's already generating billions in sales. If AST misses a few launches, takes longer to activate customers, needs more capital, or monetizes its network more slowly than expected, then the hit could be enormous. 

So this is an opportunity for people who want the biggest possible outcome and are willing to stack a lot of "ifs" to get there. Build the constellation, launch it, get carriers to activate it, get regulators everywhere else to sign off. 

If it all lands, the upside dwarfs everything else on this list. If it doesn’t, well… let’s just say it’s not going to be pretty. 

Until now, we've looked at two space stocks that ask you to pay up for a future that hasn't arrived yet. Rocket Lab needs Neutron, Products, and Iridium to all click into place. AST needs an entire cellular network to go live. 

Both are compelling stories. Neither one is profitable.

So let’s look at a company that already is. 

Karman Holdings Stock: The Profitable Space Company Wall Street Ignores

Karman Holdings (KRMN) is a small company that builds and sells the parts that go inside rockets and other spacecraft. 

Its portfolio includes payload protection and deployment systems, aerodynamic interstage structures, and propulsion components. These products are used for space launch vehicles, as well as sub-orbital hypersonics and missile launch and defense. 

So far, Karman’s business has proven effective. In Q2 2026, revenue grew by 58% year over year to $182 million. Meanwhile, net income – yes, GAAP net income, no adjustments – ended at $14 million, over double last year. 

Now, being profitable isn’t the most interesting part of Karman’s story. In fact, I want to call your attention to two particular points. 

First, Karman was started in 2020, turned profitable in 2023, and went public in 2025. Today, net income is definitely trending up. 

Second: Karman has a market cap of around $7 billion. Rocket Lab is around $46 billion, while AST is at roughly $25 billion. 

Let’s put all of that into perspective. Rocket Lab is worth nearly 7x Karman. AST is worth 3x. And unlike Karman, neither has a dollar of profit to show for their work. The result is that investors buying RKLB or ASTS are paying far more for a “space stock” than they might need to. There’s a smaller player right there, trading at a fraction of the valuation of the first two contenders.  

This becomes even clearer when we look at it visually. 

Now, sure, these numbers will change, and KRMN is by no means a “cheap space stock,” either. But the point is that if one were to invest in space stocks today, RKLB and ASTS are more expensive, and by extension, riskier plays. 
And when we look at Karman’s own guidance for 2026, the company suddenly looks even more impressive: $730 million to $745 million on the top line, roughly 57% growth at the midpoint, and a backlog gives them 95% visibility into that number. 

Which Space Stock is The Better Buy?

A question I keep coming back to is simple. Why is a company like Karman growing this fast, this profitably, with so much visibility into its own future, and yet still trades at a fraction of what the other two popular companies command? 

Well, the answer comes down to story time.

Rocket Lab and AST are selling a story. Karman is selling hardware. 

Now, before you start throwing things at your monitor and accusing me of being vague, let me qualify that statement. 

Rocket Lab's pitch is "we're building the rockets and infrastructure for humanity's expansion into space." 

AST's pitch is "we're ending dead zones everywhere on Earth." 

Those are stories you can picture. They're stories that, if they work, change how millions of people live. That's the kind of narrative that gets a company priced at massive multiples that investors would gladly pay for without batting an eye. 

Karman's pitch is "we make the interstage rings and payload deployment systems that go inside somebody else's rocket." 

From a business perspective, that is perfectly fine. In fact, it’s more than perfectly fine – it’s exactly what investors should want. There’s a real, growing, profitable business here. 

But if you were going to pitch these three companies at a dinner party, which story would sound better? 

And that's really the trade you're making across all three. Rocket Lab and AST are asking you to pay a premium for optionality, for the chance that their story turns out to be the biggest, brightest one in the sector. 

Karman is asking you to pay a fair, and arguably still generous, price for a business that's already proven and already growing – just without the multi-decade "we changed the world" narrative attached to it.

Neither approach is wrong. But it does mean the two popular names carry more risk than usual. If Neutron slips again, if AST's carriers take longer to activate than promised… well, we’ve all seen how their stocks have moved this past year, so you know exactly what will happen. 

On the other hand, if Karman misses on one of its own targets – maybe a delayed contract, a margin miss, or a bad quarter overall – it still has its profits, its backlog, and a growth story that isn't hanging on one make-or-break product actually working. That alone gives it a cushion, and one that I think is easier to underwrite.

That's the difference. 

Rocket Lab and AST are asking you to pay for a story that hasn't finished being written. Karman is asking you to pay a fair price for one that already has a middle, plus the start of a happy ending.

If you want the biggest possible outcome and can stomach the "ifs," Rocket Lab or AST is your best bet. But if you want exposure to the space sector without betting the farm on Neutron flying clean or AST's carriers flipping the switch on time, Karman is the one proving itself on the income statement, while the other two do the talking.