SpaceX, the private aerospace company founded by Elon Musk, made its public market debut on June 15, 2026, raising $85.7 billion in an initial public offering that set a new record for the largest IPO in history. The listing under the ticker SPCX attracted robust demand from both institutional and retail investors, capping years of speculation about whether and when the company would go public.

Underwriters exercised a greenshoe overallotment option following the offering, a sign of strong investor appetite that allows banks to issue additional shares to meet excess demand and stabilize the stock price in the aftermarket. The move is standard practice in high-demand IPOs and indicated that orders exceeded the initial share allocation.

Retail investors were given access to shares ahead of the debut, reflecting a broader trend of democratizing IPO participation that has grown since the early 2020s. The offering generated substantial returns for early stakeholders who had held private positions in the company over its decades-long development from a startup into the world's dominant commercial launch provider.

Among those cashing in was Hollywood producer Jon Peters, who reportedly netted approximately $50 million from his early SpaceX investment, illustrating how the company's private valuation growth attracted backers well beyond the traditional venture capital and aerospace investment communities. The IPO marks a significant moment for the commercial space industry, bringing one of its most prominent players under the scrutiny and capital access that comes with public ownership.