SpaceX shares are now trading, opening what strategists are calling a trillion-dollar IPO era. Elon Musk's company released only about 5% of its shares to the market, a smaller float than the typical 10%-20% offered in a standard IPO. The limited supply has implications for both how the stock trades and how the company's headline valuation should be read.
Why a Small Float Matters
A float this thin means the widely cited figures for SpaceX's valuation and Musk's wealth are largely on paper for now. The reduced offering was partly a function of the company's size, an IPO of 20% of a roughly $2 trillion company could have been market-disrupting. With fewer shares available, bidding can push prices higher than broader supply would support. As SpaceX gradually increases its float over time, that dynamic is expected to shift.
Retail Investors Lead the Buying
Demand from retail investors was strong out of the gate. SpaceX recorded $117.6 million in net retail buys, the largest single day of retail net buying for an IPO in recent history per Vanda, surpassing a record set by Coinbase in 2021. SpaceX accounted for roughly 56% of all retail net buying on Friday. Apex Fintech Solutions, a clearing and custody platform serving retail brokerages, reported traders bought $2.4 billion of SpaceX stock and sold $1.8 billion, among the largest net buys the firm has processed.
Active ETFs Join In
Retail was not alone. ETF analyst Eric Balchunas noted that 40 actively managed ETFs were holding SpaceX, a new development. Unlike passive index funds, these active managers face no rule changes and can buy or sell at will.
What Comes Next
The impacts of a large IPO take time to play out. JPMorgan Asset Management strategist Aaron Mulvihill said large offerings carry a gravitational pull that affects public markets, private markets and sectors. History urges caution: the average IPO this decade was down 26% from its offering price after one year, according to JPMorgan data. Bill Smith, CEO of Renaissance Capital, wrote that hype often peaks on day one.
SpaceX is expected to list in the Nasdaq 100 around July 6, which would force ETFs and index funds tracking that benchmark, including the popular QQQ, to buy in. It is expected to enter the Russell 1000 around September or December. Because the debut appeared to go relatively smoothly, it may clear the path for more mega IPOs, with Anthropic and OpenAI seen as likely candidates this year. Successful debuts from those companies could reshape the broader stock market.