SpaceX Valuation Premium Far Exceeds Tesla's, Merger Expectations Drive Capital Rotation
Alina Collins
SpaceX fell 16% in a single session to mark its third straight day of post-IPO losses, while Tesla rose 1% to $405 — a 100× vs. 14× price-to-sales gap is turning 'sell SpaceX, buy Tesla' into the market's hottest relative-value trade.
100× price-to-sales vs. 14× — how wide is the gap?
SpaceX trades at over 100× its 2025 revenue of $18.7 billion; Tesla, on $95 billion in revenue, carries a price-to-sales ratio of roughly 14×.
This means → investors pay more than seven times as much per dollar of SpaceX revenue as they do for Tesla — that is the "Musk premium" in raw numbers.
In plain terms = both companies carry the Musk brand, but SpaceX's ticket price is far steeper — steep enough for money to start comparison-shopping.
Why is capital rotating from SpaceX into Tesla?
The core narrative is a merger bet: Musk and SpaceX president Gwynne Shotwell both talked up a possible combination before the IPO.
The two companies already share employees and collaborate on AI agents and chip manufacturing — SpaceX, xAI, and X were still separate entities in early 2025, yet consolidation has accelerated visibly since.
This means → buying Tesla at the lower valuation is seen by some investors as a cheaper entry ticket to the broader "Musk empire."
How much fundamental pressure does SpaceX face on its own?
A large debt raise launched immediately after the IPO reminded the market how capital-hungry SpaceX's business really is — rocket launches, Starlink infrastructure, and deep-space exploration all demand continuous heavy spending.
Tesla's auto and energy operations are more mature and generate a more stable cash-flow base.
In plain terms = SpaceX's story is more exciting, but the bill is scarier; some of the sell-off may be normal post-IPO adjustment, yet the timing of the debt raise deepened concerns about the funding gap.
Can the "sell SpaceX, buy Tesla" trade last?
Both companies traffic in grand visions: SpaceX bets on orbital data centers, lunar and Martian settlements; Musk says Optimus robots will "end poverty."
Similar ambitions, vastly different valuations — whether the relative-value logic holds ultimately depends on whether the merger actually happens.
This reflects a key uncertainty: the merger timeline is completely opaque, and the arbitrage window may not stay open for long.
Content is for reference only, not financial advice.