SpaceX's stock has declined 11% since its June IPO, but the broader space sector remains strong with a $1.85 trillion market cap. Capital is returning to smaller space companies working with SpaceX on government and telecom contracts. Three alternative space stocks to consider are Rocket Lab (RKLB), AST SpaceMobile (ASTS), and Intuitive Machines (LUNR), each with different growth catalysts and profitability timelines.

As Wall Street rotates away from crowded, overvalued AI software trades, institutional investors are positioning in undervalued sectors with tangible assets and government contracts. The article highlights opportunities in advanced aviation, commercial space, and energy sectors, where companies have strong backlogs, de-risked manufacturing partnerships, and technical mean-reversion setups.

Intuitive Machines' SVP and Chief Technology Officer Timothy Price Crain II sold 150,000 Class A shares worth $3.3 million on June 18, 2026, through a pre-scheduled Rule 10b5-1 trading plan. The sale represents routine portfolio management rather than a loss of confidence, as the executive retained substantial holdings. The company continues to show operational momentum with record Q1 revenue of $186.7 million and a $1.1 billion backlog.

MDA Space is positioning itself as a cross-border defense champion through a $620 million acquisition of Blue Canyon Technologies from RTX Corp and a C$688 million satellite contract with the Canadian Space Agency. Despite strong Q1 2026 earnings (32.2% YoY revenue growth), the stock trades at a significant valuation discount compared to peers. The Blue Canyon acquisition provides access to US defense contracts through localized assets and security clearances, unlocking a $3.5 billion addressable pipeline. Recent price weakness is attributed to derivative-driven hedging rather than fundamental concerns.

SpaceX's post-IPO rally has dominated investor attention in the space sector, but its recent pullback from peak valuations could benefit smaller competitors. AST SpaceMobile, Rocket Lab, and Intuitive Machines are positioned to attract investors seeking exposure to space technology at more reasonable valuations.

Following SpaceX's record $1.77 trillion IPO, the article compares it with Intuitive Machines, which dropped 20% post-IPO. While SpaceX projects 73.5% revenue CAGR through 2028, it trades at an expensive 117x sales multiple and remains unprofitable due to losses in space and AI divisions. Intuitive Machines, though smaller with declining 2025 revenue, is valued more reasonably at 17x sales, projects faster 87.8% CAGR growth, and has a simpler business model focused on NASA lunar contracts. The analyst recommends Intuitive Machines as the better long-term investment despite SpaceX's higher growth expectations.

Intuitive Machines announced a $500 million share sale in early June when its stock was near $46, potentially diluting shareholders by only 7.8%. Though the stock has since crashed 46% due to SpaceX IPO competition and broader market sell-offs, the company may have successfully raised cash before the collapse. The $500 million windfall could fund operations until the company reaches positive free cash flow in 2027-2028, potentially eliminating future capital raises.

Voyager Technologies, a space station company building the Starlab replacement for the International Space Station, has acquired lunar lander company Astrobotic for up to $300 million. This move positions Voyager to become a leading NASA contractor for lunar missions, with Astrobotic's Griffin lander and LunaGrid power system adding critical capabilities for building a permanent moon base. The acquisition could prove highly valuable given Astrobotic's $323 million NASA contract and potential to reclaim a $610 million VIPER lander contract.

While SpaceX dominates headlines following its IPO, four smaller public space companies—Rocket Lab, Planet Labs, Intuitive Machines, and Redwire—are building critical infrastructure and capabilities in the space economy. These companies are securing NASA contracts, achieving profitability milestones, and positioning themselves in defense and AI markets, though each carries execution risks.

SpaceX's record $75 billion IPO creates opportunities for suppliers and partners in the commercial space economy. Alphabet holds a $122 billion stake in SpaceX that is now marked to market. Rocket Lab, Kratos Defense, Intuitive Machines, and AST SpaceMobile are positioned to benefit from increased spending on space infrastructure and satellite deployment.

The space sector rebounds Wednesday as Momentus and AST SpaceMobile lead gains following positive catalysts. Momentus announced a new contract with University of Colorado Boulder for its Vigoride-9 service vehicle, rising 9.04%. AST SpaceMobile successfully launched three BlueBird satellites, gaining 6.75%. The sector recovers after SpaceX's IPO triggered a broader selloff, with investors showing renewed interest in commercial space companies.

SpaceX completed the largest IPO ever, raising $75 billion at a $2.1 trillion valuation. The stock surged 19% on day one and continued climbing in premarket trading. The company's merger with xAI has shifted market perception from aerospace infrastructure to space-based AI compute. However, analysts are divided on valuation, with NewStreet Research targeting $165 versus Morningstar's $63 price target. The IPO is expected to create a 'gravitational pull' effect, boosting valuations across the aerospace sector.