Elon Musk warned on X that firms maintaining significant short positions in SpaceX face "very low" survival probability, his first direct warning to bears betting against the newly public rocket company.
What Happened
Musk posted July 17 that the survival probability for firms holding significant short positions in SpaceX over time is "very low." Five weeks after what was described as the largest IPO in history, SpaceX trades under the ticker $SPCX and has fallen roughly 30% from its peak above $2.6 trillion market cap—briefly surpassing Microsoft and Amazon in valuation before retreating. Short sellers have booked gains of about $8.7 billion during the post-IPO pullback.
Why It Matters
Musk's statement echoes bullish analysis projecting that Starship cost reductions could unlock a multi-trillion-dollar space economy, including orbital solar power, asteroid mining, and Mars terraforming potentially creating over $100 trillion in new market capitalization. The framing positions SpaceX as essential infrastructure—akin to AWS for cloud computing—for the expanding orbital economy. This mirrors Musk's history with Tesla, where he has repeatedly targeted short sellers, once declaring that anyone still holding a short position would be "obliterated." For Starlink investors and broader space-sector participants, Musk's warning signals conviction in the long-term valuation thesis while highlighting ongoing volatility in the post-IPO trading environment.
The Bottom Line
Musk has made clear his view that betting against SpaceX's multi-planetary ambitions carries existential risk for short sellers. Whether or not that thesis holds, the $SPCX pullback and the roughly $8.7 billion in shorts' gains show the market remains divided on near-term value versus long-range potential.