Elon Musk became the world’s first trillionaire after shares of his rocket company SpaceX soared in Wall Street’s biggest initial public offering of stock.

Shares in SpaceX jumped more than 19 per cent after opening for trading Friday, a sign that investors are looking past the billions the company is losing and instead betting that its massive investments in satellites, orbital data centers and artificial intelligence will pay off in the future.

SpaceX opened around midday at $150 a share, then rose to around $168, before finishing the day just below $161. 

That price gave the company a market value of $2.1 trillion, making it the sixth largest public US company — larger even than its founder and CEO’s other big business, the electric vehicle maker Tesla.

Between his holdings in SpaceX and Tesla, where he is also CEO, Musk is now worth an estimated $1.1 trillion, according to Forbes.

Why SpaceX is going public now

Musk says SpaceX, founded in 2002, is going public now because it needs money to fund its ambitions of putting satellites and data centers in space and eventually establishing a colony of people on Mars.

He marked the opening of trading on Nasdaq by joining a ceremonial bell ringing from Starbase, the South Texas home of SpaceX.

He reiterated his lofty goals “to make life multiplanetary.”

“Not just a few astronauts, I mean literally you,” Musk said. 

“Whoever you are watching this, SpaceX wants to be able to take you to the moon, take you to Mars and ultimately beyond.”

On a livestreamed conference Thursday with the CEO of JPMorgan Chase, one of the investment banks making big money off the IPO, Musk offered few details.

He entertained the crowd with talk of “moon hotels,” a future Martian colony and a network of Earth-orbiting data centers powered by the sun. But when asked about plans for his flagship chatbot offering Grok, he pivoted to talking about his satellites.

In addition to establishing a one-million person Martian colony, the company has promised to save humanity by establishing other outposts in space, launch data centers the size of football fields into orbit and outdo rivals Anthropic and OpenAI in the race to make money from artificial intelligence.

To reach its goals, SpaceX needs billions more than it currently takes in from its rocket and satellite business. Between the start of 2025 and March 31, 2026, the company, formally known as Space Exploration Technologies Corp., lost $8.7 billion.

Pros and cons for investors

Betting on SpaceX is in many ways a bet on Musk himself. In an unusual arrangement that has drawn criticism from shareholder watchdogs, he holds 82 per cent interest in a special B class of shares, giving him sweeping power to control the company even though his ownership stake is about half that.

“There’s a lot of hype, but I see the faith that investors have in Musk,” said Yordys Coro, an IT support contractor in Miami as he watched his $14,000 investment in SpaceX shoot up to $17,000 in just a few hours.

“I’m going to hold on.”

Wall Street bankers that helped take SpaceX public are also enthusiastic about the company — and the big fees they will earn — but not everyone thinks the stock price is justified.

Analysts at research firm Morningstar, which doesn’t earn any investment banking fees, wrote that the IPO is “significantly overvalued.”

Citing SpaceX’s technology challenges, including shielding its orbiting datacenters from radiation damage and catching up to leaders in AI such as Anthropic and OpenAI, they estimated the company is only worth $780 billion — less than half its IPO value.

SpaceX itself has hinted at the challenges, conceding in regulatory documents that some of its business plans rest on “unproven technologies.”

It also indicated that another part of the company, its artificial intelligence business called xAI, has no clear path to profitability and is burning cash to catch up with rivals.

On a livestreamed conference Thursday with the CEO of JPMorgan Chase, one of the investment banks making big money off the IPO, Musk offered few details.

He entertained the crowd with talk of “moon hotels,” a future Martian colony and a network of Earth-orbiting data centers powered by the sun. But when asked about plans for his flagship chatbot offering Grok, he pivoted to talking about his satellites.

How Elon made his fortune

Still, Musk has pulled off the seemingly impossible before.

The now-trillionaire — on paper at least — made his initial fortune by creating two companies, Zip2 and PayPal, that netted him about $200 million at sale. 

He used that money to start SpaceX and invest in Tesla, and defied the odds by creating a space company that figured out how to reuse rockets and a car company that made electric vehicles cool.

Musk has realized vast sums of wealth for himself, much of it in stock he has yet to cash in or grants for shares he’ll only receive if Tesla or SpaceX hit ambitious performance targets.

His recent pay package from Tesla was so large it even drew criticism from the Vatican. 

At Tesla, he’s worried shareholders by fighting with regulators or dividing his attention between multiple companies and last year by taking a role in the Trump administration.

But a rising stock price has cured all ills: Since it went public in 2010, Tesla has returned 20,000 per cent for shareholders, or more than $1.2 trillion in investor wealth.

SpaceX is the first of three “megacap” companies expected to go public this year, with Anthropic and OpenAI to follow. Nasdaq even revised its rules to allow SpaceX to gain entry into funds tied to its indexes in 15 days, which means investors will end up buying the rocket maker’s shares much earlier.

Not all investors are thrilled about SpaceX potentially showing up in their holdings of index funds.

Officials from pension funds for firefighters, teachers and other workers in California and New York sent a letter to SpaceX last month decrying some of the provisions in its IPO, including mandatory arbitration of shareholder claims and how much power Musk will hold over the company.