SpaceX vs. Rocket Lab: Which Space Stock Has More Room to Run?

SpaceX is reportedly preparing for an IPO that could value the company at up to $1.75 trillion, implying 95x 2025 sales and making it potentially the largest IPO in history. The article highlights strong revenue growth from $2.3 billion in 2021 to an estimated $18.5 billion in 2025, plus 600+ launches and 10,000+ Starlink satellites, while noting that the xAI acquisition may temporarily pressure profitability. Rocket Lab is framed as a smaller competitor with revenue expected to rise from $602 million in 2025 to $1.6 billion by 2028, but with profitability not expected until 2027.

Analysis

The bigger trade is not “buy the IPO” but the repricing of the entire space-infrastructure stack. A public SpaceX would likely compress the multiple gap between private, quasi-monopoly infrastructure and smaller public peers by forcing investors to choose between scale/quality and optionality/torque; that is usually negative for the lower-quality adjacent names even when the headline is bullish. The second-order beneficiary is not just launch competitors but the picks-and-shovels layer: communications payloads, ground segment, defense procurement, and radiation-hardened components should see broader capex validation if SpaceX’s valuation legitimizes a higher terminal growth assumption for the sector.

Rocket Lab is the obvious sympathy trade, but the market may be overestimating how much of SpaceX’s halo can accrue to it. The core issue is execution dispersion: if Neutron slips, the stock can de-rate quickly because the current valuation already discounts a smooth transition from subscale launcher to integrated systems platform. The more interesting setup is that a strong SpaceX debut could actually pressure Rocket Lab’s financing terms in the near term by widening the performance bar for public comps, raising the burden of proof on margin expansion.

The contrarian miss is that a blockbuster IPO does not automatically mean better public-market returns than the incumbent peer. A trillion-plus valuation can create a quasi-index effect and lower volatility, but it also caps upside unless there is a clear path to monetizing defense, broadband, and AI adjacency faster than consensus expects. If the market starts treating SpaceX as a “must-own infrastructure compounder,” multiple expansion may concentrate in defense-enabled satellite and data-network beneficiaries rather than in the launch name itself.

Key Decisions for Investors

• Long BKSY on a 3-6 month horizon as a secondary beneficiary of higher confidence in LEO/defense satellite spending; target a 20-30% upside if SpaceX IPO chatter re-rates the group, with stop-loss on any Neutron launch success that shifts flows back to RKLB.
• Avoid chasing RKLB into the event; if already long, sell covered calls 1-2 quarters out to harvest elevated implied volatility while waiting for Neutron execution proof. Risk/reward is poor if launch timing slips or Space Systems margins disappoint.
• Construct a pair trade: long BKSY / short RKLB for 6-9 months to express ‘quality defense payloads over promotion-driven launch torque.’ The thesis works if public-market capital rotates toward proven contract visibility rather than pre-profit growth narratives.
• If SpaceX IPO prices at the top end of the range, fade the first-week pop with a hedged short via call spreads or by pairing short high-multiple space names against long defense primes. The risk is underestimating retail momentum, but the reward is a faster multiple reset once lockup-style scarcity wears off.
• For longer-duration capital, accumulate NVDA and INTC on any post-IPO enthusiasm around SpaceX’s AI linkage; the real monetization path is compute, networking, and semis embedded in space/edge infrastructure, not the launch equity itself.