How to Invest in Space economy
Short answer
You can invest in the space economy by buying the individual stocks that fit the thesis (RKLB, ASTS, LUNR, LMT, NOC, BA), holding a broad aerospace and defense ETF proxy like ITA, or building a focused space economy basket in Walnut. The theme spans launch providers, satellite communications, lunar and exploration services, and the established defense primes with large space divisions. It blends a few profitable, diversified contractors with several pre-profit pure-plays betting on falling launch costs and a growing commercial market for orbit-based services.
Why is the space economy becoming investable now?
The space economy is becoming investable now mainly because launch costs have fallen dramatically. Reusable rockets cut the price of putting a kilogram into orbit by an order of magnitude over the past decade, which turned activities that were once uneconomic, large satellite constellations, frequent commercial launches, lunar missions, into viable businesses. Cheaper access to orbit is the structural enabler underneath the entire space economy theme.
That cost decline opened room for commercial pure-plays alongside the traditional contractors. RKLB (Rocket Lab) provides small-launch and is building a larger rocket and spacecraft business; ASTS (AST SpaceMobile) is building satellites that connect directly to ordinary phones; LUNR (Intuitive Machines) provides lunar landing and services. These commercial names are the growth, higher-risk end of the space economy theme, made possible by the launch-cost collapse that also benefits the established primes.
What is the difference between commercial space and defense primes?
The space economy theme contains two very different kinds of company. The defense primes, LMT (Lockheed Martin), NOC (Northrop Grumman), and BA (Boeing), are large, diversified contractors with major space divisions building satellites, launch systems, and government programs. They earn steady revenue from long-dated government contracts, so their space exposure comes bundled inside profitable, established businesses. They are the lower-risk anchor of the space economy theme.
The commercial pure-plays, RKLB, ASTS, and LUNR, are the opposite: smaller, often pre-profit companies built specifically around new space markets. Their upside is larger if the commercial space economy expands as hoped, but their risk is far higher because they depend on execution, funding, and markets that are still forming. This split is the defining feature of the space economy theme, and it is why a basket usually balances the steady primes against the speculative commercial names rather than concentrating in either.
What are the main markets in the space economy?
The space economy theme spans several distinct markets. Launch is the foundation: getting payloads to orbit, served commercially by RKLB and by the primes' launch systems. Satellite communications is the largest commercial market, including broadband constellations and ASTS's direct-to-phone approach. Earth observation and government and defense space, the domain of LMT and NOC, cover imaging, navigation, and military systems. And exploration services, like LUNR's lunar landers, support government and commercial missions beyond Earth orbit.
Grouping these markets together is what lets the space economy theme capture the full opportunity rather than a single niche. A growing space economy needs more launch capacity (RKLB), more satellites and communications (ASTS, plus prime-built systems), and more exploration and defense programs (LMT, NOC, BA, LUNR). Because no single public company spans all of these at scale, the space economy theme deliberately holds launch, communications, exploration, and defense-prime exposure side by side.
What gets a stock into the Space economy theme?
Revenue or development exposure to space: commercial launch, satellite communications and constellations, lunar and exploration services, and defense contractors with significant space and satellite divisions.
What stocks are in the Space economy theme?
Every public name that fits the Space economy thesis, with the rationale for inclusion. Click any ticker for the full stock guide. The basket above starts equal-weighted; you set your own target weights inside Walnut.
Rocket Lab provides small-satellite launch and is building a larger rocket and spacecraft business across the launch market.
AST SpaceMobile is building satellites that connect directly to ordinary phones; a high-risk, high-upside communications bet.
Intuitive Machines provides lunar landing and services for government and commercial missions; small and speculative.
Lockheed Martin is a defense prime with a major space division building satellites and exploration systems; steady contract revenue.
Northrop Grumman builds space, missile, and satellite systems as a diversified, profitable defense prime.
Boeing's defense and space unit builds launch systems, satellites, and crewed spacecraft alongside its commercial aircraft business.
How to invest in Space economy
There are a few ways to get exposure to the space economy theme, and Walnut is not an investment adviser, so this is descriptive. The most concentrated path is buying individual stocks that fit the thesis, and the central choice is how to balance risk. The defense primes LMT, NOC, and BA give steadier, profitable exposure with space bundled inside large contractors, while the commercial pure-plays RKLB, ASTS, and LUNR give higher-upside, higher-risk exposure to new space markets. Choosing single names lets you set that balance precisely, which matters in the space economy theme because the two groups behave so differently. The passive route is the aerospace and defense ETF ITA, which holds the primes heavily but treats commercial space as a small sliver, so it is really a defense proxy with limited pure-space exposure. There is no dedicated space ETF in Walnut's valid proxy set as of early 2026.
The alternative is building a dedicated space economy basket in Walnut. You describe the thesis to Walnut's AI assistant, for instance the space economy spanning launch, satellite communications, exploration, and defense-prime space divisions, and the assistant proposes constituents and starting weights drawn from names like RKLB, ASTS, LUNR, LMT, NOC, and BA, with the rationale for each. You can deliberately balance the steady primes against the speculative commercial names, review and adjust every weight, and fund the basket through your own connected broker. You approve every order before it is placed; Walnut never trades for you. The space economy basket then tracks as a single performance line you can compare against ITA.
Which ETFs cover Space economy?
If you want the theme as a single ticker rather than as a basket, these are the ETFs people most commonly use. Each has trade-offs (concentration, expense ratio, sector overlap) covered in the individual ETF guides.
The bottom line on Space economy
The space economy mixes durable, profitable defense primes with large space divisions (LMT, NOC, BA) against speculative commercial pure-plays (RKLB, ASTS, LUNR) riding falling launch costs. That barbell is the whole story. It fits a portfolio as a satellite tilt, and a focused basket lets you balance the steady primes against the high-risk commercial names more deliberately than ITA, which is dominated by defense and treats space as a sliver.
FAQ
What is the space economy theme?
+
The space economy groups companies across launch (RKLB), satellite communications (ASTS), lunar and exploration services (LUNR), and the defense primes with large space divisions (LMT, NOC, BA). It blends a few profitable, diversified contractors with several pre-profit commercial pure-plays. The structural enabler is the dramatic fall in launch costs, which turned once-uneconomic space activities into viable businesses.
What are the best space stocks?
+
Walnut isn't an investment adviser. The names most tied to the space economy theme as of early 2026 are RKLB (launch), ASTS (satellite communications), and LUNR (lunar services) on the commercial side, and LMT, NOC, and BA as defense primes with major space divisions. They split into steadier primes and speculative commercial pure-plays, so the mix you choose sets the basket's risk.
Is there a space ETF?
+
There's no dedicated space-only ETF in Walnut's valid proxy set as of early 2026, though pure-space ETFs exist in the broader market. The closest valid proxy is ITA, the aerospace and defense ETF, which holds the primes (LMT, NOC, BA) heavily but treats commercial space as a small sliver. So ITA is really a defense proxy; a focused Walnut basket captures the commercial pure-plays too.
How do I invest in the space economy?
+
Three approaches. (1) Buy ITA for defense-heavy exposure with limited commercial-space weight. (2) Buy the names directly, balancing steadier primes (LMT, NOC, BA) against commercial pure-plays (RKLB, ASTS, LUNR). (3) Build a Walnut basket spanning launch, communications, exploration, and defense space, with weights you set. Walnut isn't an investment adviser; you approve every order.
Why is the space economy investable now?
+
Mainly because launch costs collapsed. Reusable rockets cut the price of reaching orbit by roughly an order of magnitude over the past decade, turning large satellite constellations, frequent commercial launches, and lunar missions into viable businesses. Cheaper access to orbit is the structural enabler beneath the whole space economy theme and is what opened room for commercial pure-plays like RKLB, ASTS, and LUNR.
What's the difference between Rocket Lab and Lockheed Martin in space?
+
Rocket Lab (RKLB) is a commercial pure-play built around launch and spacecraft, smaller and higher-risk, riding the growth of new space markets. Lockheed Martin (LMT) is a large, diversified defense prime whose space division builds satellites and exploration systems funded by long-dated government contracts. Within the space economy theme, RKLB is the speculative growth end and LMT is the steady anchor.
Is AST SpaceMobile (ASTS) a risky investment?
+
Walnut isn't an investment adviser. Factually, AST SpaceMobile (ASTS) is building satellites that connect directly to ordinary phones, a large potential market, but it's a pre-profit company that depends on deploying a constellation, securing funding, and signing carrier deals. It sits at the high-risk, high-upside end of the space economy theme, distinct from the cash-generating defense primes. Size it accordingly.
Are space stocks a good investment in 2026?
+
Walnut isn't an investment adviser. Factually, falling launch costs continue to expand the commercial space economy, and the defense primes have steady backlog, but the commercial pure-plays (RKLB, ASTS, LUNR) are pre-profit and highly volatile, dependent on markets still forming. The theme blends durable contractors with speculative growth, so risk depends heavily on the mix you hold and your time horizon.
What are the risks of a space economy basket?
+
Three. (1) Execution and funding risk in the commercial pure-plays: RKLB, ASTS, and LUNR depend on technical milestones and capital markets. (2) Concentration if the primes dominate: a prime-heavy basket behaves like a defense bet, not a space bet. (3) Long timelines: many space markets are still forming, so payoffs can be distant. Walnut isn't an investment adviser; balance and sizing matter.
Can I build a space economy basket in Walnut?
+
Yes. Tell Walnut's AI assistant something like 'space economy across launch, satellite communications, exploration, and defense space' and it proposes a basket spanning RKLB, ASTS, LUNR, LMT, NOC, and BA with weights you set. You can balance steady primes against speculative commercial names, review the rationale, and fund through your broker. The basket tracks as one performance line.
Build the Space economy basket in Walnut
Walnut's AI assistant takes the thesis above, proposes 5 to 6 constituents with target weights, and lets you fund the basket through your existing broker. You approve every order; we never trade on your behalf.
Other themes
- AI infrastructure. Picks and shovels of the AI buildout: GPUs, networking, foundries, and the software platforms training the largest models.
- Data center power and cooling. The grid, switchgear, liquid cooling, and electrical contracting that AI data centers can't run without.
- Semiconductors. The full chip stack: designers, foundries, equipment makers, materials suppliers, and packaging specialists.
- Defense and modernization. Software, sensors, and specialty materials at the center of US and allied defense buildouts.
- Critical materials. Rare earths, specialty metals, and strategic materials at the center of supply chain reshoring.
Walnut is informational, not investment advice. Theme membership is descriptive, not prescriptive; nothing on this page should be read as a recommendation. Always verify current financials and your own circumstances before investing.