SpaceX didn’t just go public. It went supernova.
After listing on June 12, 2026, at $135 per share in what became a $75 billion IPO, the largest in American history, SpaceX’s stock has ripped higher so aggressively that the company is now closing in on Amazon’s roughly $2.6 to $2.7 trillion market cap. That puts Elon Musk’s rocket and satellite empire on the doorstep of becoming the fifth-largest public company in the United States, leapfrogging a retail and cloud computing giant that took nearly three decades to reach that perch.
Two days, two trillion reasons to pay attention
On day one, shares closed at $160.95, a 19% jump from the $135 IPO price. That gave the company a market capitalization of roughly $2.1 trillion, immediately making it larger than Broadcom and several other established tech heavyweights.
Then came day two. The stock surged another 20%, pushing SpaceX’s valuation past $2.5 trillion.
