The Overlooked Space Stocks Gaining Momentum
While SpaceX dominates headlines with its anticipated record-breaking initial public offering, two smaller publicly traded space companies are quietly positioning themselves as the real beneficiaries of the coming aerospace investment boom. Rocket Lab and AST SpaceMobile have demonstrated compelling growth metrics and regulatory progress that are capturing institutional investor attention—though not without substantial execution risks that could derail their ambitious trajectories.
The space economy is experiencing unprecedented momentum, with private capital flowing into the sector at record levels. Yet as SpaceX captures mainstream media attention, sophisticated investors are increasingly examining the publicly available alternatives that offer more accessible entry points and unique competitive advantages. Rocket Lab and AST SpaceMobile represent two fundamentally different approaches to space commercialization, each with distinct growth catalysts and market opportunities that could deliver outsized returns for shareholders willing to tolerate near-term volatility.
Rocket Lab and AST SpaceMobile: The Numbers Tell a Story
Rocket Lab has demonstrated exceptional operational momentum in its latest quarterly results. The company reported 64% revenue growth in the first quarter, a significant acceleration that reflects strengthening demand across its launch services and spacecraft manufacturing segments. More impressively, Rocket Lab has doubled its backlog to $2.2 billion, providing multi-year revenue visibility that reduces execution uncertainty for investors evaluating the company's growth prospects.
This backlog expansion is particularly meaningful in the aerospace and defense sector, where signed contracts represent high-confidence future revenue. The doubling of backlog suggests that Rocket Lab has successfully penetrated new customer segments and expanded relationships with existing clients who are increasingly confident in the company's ability to deliver on its promises. This metric serves as a leading indicator of sustained growth momentum through 2025 and beyond.
AST SpaceMobile has achieved a different but equally significant milestone. The company secured FCC approval for its revolutionary direct-to-device satellite service—a regulatory achievement that removes a critical barrier to commercialization. Beyond the headline approval, AST SpaceMobile is projecting 147% revenue growth for 2026, suggesting explosive scaling as its satellite constellation moves toward full operational deployment.
Key metrics for both companies:
- Rocket Lab: 64% Q1 revenue growth, $2.2 billion backlog (doubled year-over-year)
- AST SpaceMobile: FCC direct-to-device approval secured, 147% projected 2026 revenue growth
- Both companies trade at elevated valuations reflecting growth expectations
Market Context: The Space Economy's Secular Tailwinds
The commercial space sector is experiencing structural growth driven by multiple converging trends. Declining launch costs—pioneered by SpaceX but now being replicated by competitors like Rocket Lab—have democratized access to orbit and enabled entirely new business models. Government spending on space capabilities continues to accelerate, with national security concerns driving sustained defense budgets across the United States, Europe, and allied nations.
The telecommunications industry is increasingly viewing satellite-based broadband and direct-to-device connectivity as strategic assets. AST SpaceMobile's FCC approval positions the company at the intersection of these trends, offering wireless carriers a pathway to global coverage without requiring terrestrial infrastructure investment in remote regions. This represents a multi-billion-dollar addressable market as carriers evaluate options for expanding service areas and generating new revenue streams.
Rocket Lab operates in a complementary but distinct market. The company provides frequent, reliable, and cost-effective access to space for small and medium-sized satellites. As the satellite economy expands—driven by communications, Earth observation, and defense applications—the demand for dedicated small-lift launch capacity should accelerate. Rocket Lab's $2.2 billion backlog suggests the company is successfully capturing this demand.
However, the competitive landscape is intensifying. SpaceX continues to dominate launch services while moving aggressively into broadband via Starlink. Other competitors including Relativity Space (which uses 3D printing for rockets) and international providers are advancing rapidly. Rocket Lab and AST SpaceMobile must execute flawlessly to justify current valuations and market expectations.
Why This Matters for Investors
The space economy represents one of the most significant secular growth opportunities available to equity investors. Unlike mature industries facing cyclical pressures, commercial space is in its infancy—comparable to where the internet industry stood in the late 1990s (though with considerably more rational valuations and actual revenue generation).
Rocket Lab offers exposure to launch services and space infrastructure, with a proven operational track record and expanding customer base. The company's path to profitability appears more direct than many aerospace peers, with revenue growth outpacing cost increases. For investors seeking a pure-play on increasing launch demand, Rocket Lab provides a publicly traded alternative to waiting for SpaceX's IPO, which will likely be heavily overvalued given the hype factor.
AST SpaceMobile represents a higher-risk, potentially higher-reward opportunity. The company is building an entirely new category of satellite service. If direct-to-device satellite connectivity achieves meaningful adoption among wireless carriers and consumers, the addressable market could reach hundreds of billions of dollars annually. However, execution risk is substantial—the company must successfully deploy its satellite constellation, achieve reliable service quality, and win carrier partnerships at scale.
Both companies carry significant risks that investors must carefully evaluate:
- Execution risk: Space projects are inherently complex; delays and technical challenges could impact revenue timelines
- Valuation risk: Both stocks trade at premium multiples reflecting aggressive growth assumptions
- Competitive pressure: SpaceX and other well-funded competitors could accelerate timelines or undercut pricing
- Regulatory uncertainty: Space regulations continue to evolve, creating unpredictable policy risk
Looking Ahead: The IPO Frenzy and Market Implications
As SpaceX prepares for its anticipated IPO, institutional capital will likely flow into the broader space sector. This rising tide could lift all boats, benefiting Rocket Lab and AST SpaceMobile through multiple expansion and increased sector credibility. However, investors should approach both companies with clear eyes about execution challenges ahead.
Rocket Lab appears to be executing better operationally than its valuation might suggest, with backlog growth providing genuine confidence in revenue sustainability. AST SpaceMobile is earlier in its commercialization journey but pursuing a genuinely novel market opportunity if the company can execute on its FCC approval.
For sophisticated investors willing to tolerate volatility and execution risk, Rocket Lab and AST SpaceMobile may indeed prove to be the real winners of the space IPO frenzy—but only if management teams deliver on their ambitious projections. The space sector's long-term opportunity is genuine; near-term stock performance depends entirely on execution.