SpaceX could file confidentially for an initial public offering as soon as this week, according to speculation circulating among investors and analysts. If the filing proceeds, it would set up a public debut as early as June, with the raise potentially reaching $75 billion at a valuation of $1.5 trillion or more.
That would make it the largest IPO ever recorded.
What the numbers mean for Musk
Musk owns 42% of SpaceX. At a $1.5 trillion valuation, that stake alone would push his net worth past $1 trillion, a threshold no individual has crossed. The IPO would not just be a corporate milestone. It would be a personal one.
Other investors stand to benefit. Google holds between 6% and 7.5% of the company. Wireless spectrum firm Echostar holds around 3%. Tesla, which owns a piece of SpaceX through its acquisition of XAI, would also see indirect gains.
The merger question
Speculation about a eventual Tesla-SpaceX merger surfaces periodically, and the IPO process will likely revive it. The counterargument is straightforward: analysts who have looked at both companies tend to conclude they are worth more apart than together. Tesla is an energy and automotive business. SpaceX is an aerospace and satellite business. The overlap is Musk, not the underlying operations.
The Terrafab factor
Alongside the IPO speculation, Musk has announced a new investment in Terrafab, a facility designed to bring Tesla, SpaceX and XAI under one roof. Whether that represents operational consolidation or symbolic branding is not yet clear, but it adds texture to the merger conversation.
What the market thinks
Prediction markets have already reached a verdict. Polymarket puts the probability of SpaceX going public before September 30 at 85%, and before December 31 at 91%. Those are not hedged numbers. They reflect a market that has largely stopped asking whether the IPO happens and started asking when.
The confidential filing, if it comes this week, will trigger a regulatory review process before any details become public. The summer timeline remains contingent on that review and on market conditions holding. But at these odds, and at this scale, SpaceX's public debut is looking less like speculation and more like a scheduled event.