Analysis-Defense, space firms turn to SPACs as investor appetite soars

Defense and space companies are accelerating SPAC listings, with six announced deals so far in 2026 versus three in all of 2025, representing about 10% of total SPAC transactions. Ursa Major agreed to a $2.3 billion SPAC merger, while nine SPACs holding roughly $2.35 billion in trust are seeking defense or space targets. The trend is supported by rising government and commercial space demand and a proposed increase in U.S. national defense spending to about $1.5 trillion in 2027 from $901 billion enacted for 2026, although issuers remain exposed to supply-chain disruption, contract delays, dilution and volatile government-dependent revenue.

Analysis

The relevant market effect is not simply higher sector enthusiasm: a larger de-SPAC pipeline creates a new supply of long-duration, cash-burning public equities competing for the same thematic capital. That is most negative for pre-scale names whose valuation depends on successive equity raises, because PIPE discounts, sponsor promotes and post-close lockup expirations can reset the public comparable set lower. Over the next 1-3 months, announced deal terms, redemption levels and committed-PIP financing will matter more than headline enterprise values.

RKLB should be relatively insulated versus space peers because greater vertical integration and an established revenue base make it a potential consolidator of supplier capacity and engineering talent if weaker entrants encounter financing stress. LUNR has greater sensitivity to contract-timing and mission execution; a crowded public funding market raises the penalty for any schedule slip because it reduces the benefit of scarcity valuation. ASTS is not a clean defense-SPAC read-through: its key drivers remain commercial deployment milestones, carrier funding and constellation-capex requirements, so sector flows alone should not justify multiple expansion.

Consensus may be underestimating the adverse selection embedded in the financing route. Companies able to clear a conventional IPO generally accept greater diligence and price discovery; issuers favoring bespoke structures may be optimizing certainty precisely where operating forecasts are hardest to underwrite. The structural upside is real only for platforms converting capital into funded backlog and repeatable gross-margin improvement within 6-18 months; absent that evidence, the likely outcome is dilution rather than a durable rerating.

Key Decisions for Investors

• Prefer RKLB over LUNR on a 6-12 month pair trade; size the pair beta-neutral and add only after reviewing quarterly backlog conversion and gross-margin trajectory. Thesis is relative resilience to capital-market crowding; exit if RKLB guides to slowing launch/space-systems growth or LUNR demonstrates sustained contracted revenue visibility that closes the execution-quality gap.
• Do not chase ASTS on generalized space-sector strength. Maintain a watch for a funded capital plan, carrier-payment milestones and deployment progress; initiate only after these are independently verified. A financing below prevailing market levels or material launch/deployment delay falsifies a constructive view.
• For existing LUNR exposure, reduce into sector-driven rallies over the next 1-3 months and re-enter only around discrete contract or mission catalysts. The principal downside is that schedule-driven revenue deferrals coincide with a less forgiving financing market, producing both estimate cuts and multiple compression.
• Monitor newly announced defense/space de-SPACs for high-redemption outcomes, PIPE discounts and lockup dates; these are potential short candidates after closing rather than at announcement. Require disclosed pro forma cash, quarterly cash burn and a borrowable float before acting; avoid names with insufficient liquidity.