SpaceX shares rose on Wednesday, as the Elon Musk-led company extended a remarkable rally that's seen the stock surge around 50% since its blockbuster IPO on Friday, which offered shares at a set $135.
Consistent gains for SpaceX this week pushed its market cap above Amazon on Tuesday, and it briefly surpassed Microsoft to become the fourth-largest company by valuation in the U.S.
SpaceX had a market cap of $2.66 trillion at close on Tuesday.
Investors are betting big on the promise of Musk's ability to drive long-term returns.
Musk posted on X on Sunday that the company "might be able to reach approximately" $1 trillion revenue in 2030.
SpaceX posted a $4.9 billion net loss in 2025, and it lost $4.28 billion in the first quarter of this year.