SpaceX SPCX finally arrived on the public markets, and the debut looked a lot like one of its Falcon rocket launches: loud, fast, and difficult to ignore.

Shares of Elon Musk’s space company surged 19% on their first day of trading Friday, closing at $160.95 after pricing at $135 in the largest initial public offering ever.

By the closing bell, SpaceX carried a market value of roughly $2.1 trillion, placing it ahead of companies such as Broadcom AVGO and Tesla TSLA and placing it sixth in the rankings of the world’s largest companies.

For a business that still reports losses and talks openly about Mars colonies, orbital data centers, and artificial intelligence infrastructure in space, investors appeared remarkably comfortable hopping aboard.

???? The Trillion-Dollar Milestone Arrives

The IPO raised $75 billion through the sale of 555 million shares, representing only about 4% of SpaceX’s nearly 13 billion shares outstanding.

That limited float is a key piece of the puzzle. Float refers to the number of shares available for public trading. When supply is relatively small and demand is enormous, prices can move quickly.

A large portion of those shares went directly to retail investors (20% to 30%), creating a rare situation where individual traders played a major role in powering one of Wall Street’s biggest debuts.

The rally also pushed Elon Musk into uncharted territory. Thanks to his massive ownership stake, the IPO officially made him the world’s first trillionaire, a milestone that once belonged firmly in the science-fiction section.

????‍???? Why Investors Showed Up

Ahead of the listing, some market observers wondered whether investors would embrace a company valued at $1.75 trillion despite ongoing losses.

Those concerns faded quickly.

The appeal goes beyond rockets and satellite internet. Investors increasingly view SpaceX as a combination of several businesses rolled into one. There is Starlink, the launch business, defense contracts, and now xAI, Musk’s artificial intelligence venture that was folded into the broader ecosystem earlier this year.

The story attracting buyers is less about what SpaceX earns today and more about what it could become over the next decade.

Wall Street loves growth. Wall Street especially loves growth wrapped inside a moonshot narrative.

???? The Next Catalyst Is Already Waiting

The IPO may be over, but the calendar remains packed.

The first major event investors are watching is SpaceX’s likely inclusion in the Nasdaq 100 NDX , which could happen within weeks. Index inclusion often forces funds and ETFs that track the benchmark to buy shares automatically.

Analysts estimate that Nasdaq 100 inclusion could generate between $5 billion and $10 billion of new demand.

After that comes the company's first quarterly earnings report as a public company (keep an eye on the Earnings calendar), expected in July. That report will offer investors another opportunity to evaluate whether the financial reality matches the ambitious vision. Spoiler: It likely won’t, but that’s not important.

???? Lockups, Analysts, and Plenty of Drama

The months ahead will also bring Wall Street insights on corporate activity, such as analyst coverage, fresh ratings, and plenty of price targets.

Another important milestone involves lockup expirations. A lockup is a period during which insiders and early investors can’t sell shares. As those restrictions begin to expire, additional stock may enter the market, increasing supply and potentially creating more volatility.

In other words, the easy part may have been Friday.

???? The Bigger Mission

Some investors already speculate that further consolidation across Musk’s empire could follow. SpaceX absorbed xAI earlier this year after xAI absorbed X. Rumors about deeper ties between SpaceX and Tesla continue to circulate throughout Silicon Valley and Wall Street alike.

Whether those ideas become reality remains to be seen. The rocket has left the launchpad. Now comes the part where investors find out how far it can fly.

Off to you: What’s your take on the SpaceX IPO and price performance? Share your views in the comments!