When Elon Musk walked onto the floor of the Nasdaq exchange in New York City as Elton John’s Rocket Man blared, he wasn’t just celebrating SpaceX’s stock market debut — he was making history. By the end of trading on Friday, the 54-year-old’s personal fortune had topped $1.1tn (£828bn), making him the world’s first-ever trillionaire.
The milestone came after SpaceX, the rocket, satellite and artificial intelligence company Musk founded nearly 25 years ago, went public in the largest initial public offering (IPO) in history. The company raised $75bn from investors, and its shares opened at $150, well above the pre-offer price of $135. By market close, the stock had risen to around $161, giving SpaceX a valuation of roughly $2.1tn to $2.2tn.
“Elon Musk becomes world's first trillionaire after SpaceX IPO; what it means for UK readers.”
Musk owns 42% of SpaceX, a stake worth about $767bn at the close of trading. He also holds significant shares and options in Tesla, the electric carmaker, valued at roughly $284bn combined, plus other assets. According to Forbes, his net worth jumped more than $62bn on the day of the IPO alone.
The term “trillionaire” is hard to grasp. A trillion dollars is roughly the annual economic output of a medium-sized rich country — similar to Poland or Switzerland. Only about 21 countries produce more than $1tn in goods and services each year. Musk’s wealth is almost entirely tied up in stock and options, not cash he can quickly spend. He cannot sell his SpaceX shares for at least a year.
Musk’s ascent to trillionaire status has reignited debate about wealth inequality. Democratic US senators such as Bernie Sanders and Elizabeth Warren condemned the milestone, with Warren calling it a “wake up call” and arguing it shows the need for wealth taxes. Musk is a deeply polarising figure: he gave hundreds of millions of dollars to Donald Trump’s re-election campaign, led the Department for Government Efficiency (Doge) in the US, and was responsible for closing the US Agency for International Development (USAID). Researchers in the Lancet medical journal have warned that such cuts could cause more than 14 million additional deaths by 2030. Musk has also clashed with UK Prime Minister Sir Keir Starmer over issues including immigration and the murder of 18-year-old British student Henry Nowak.
For UK readers, Musk’s trillionaire status matters because it underscores the immense concentration of wealth in a single individual — and the political influence that comes with it. His net worth is now comparable to the entire annual economic activity of a country the size of Poland or Switzerland, yet he has faced no UK wealth tax. Meanwhile, his actions at Doge led to cutbacks in foreign aid that could have devastating health consequences globally, including in developing nations the UK supports.
Q: How did Elon Musk become a trillionaire? Musk became a trillionaire primarily because SpaceX went public in a record-breaking IPO. His 42% stake in the rocket and AI company, combined with his holdings in Tesla, pushed his net worth above $1.1tn.
Q: Does Elon Musk actually have a trillion in cash? No. The vast majority of Musk’s wealth is tied up in shares and stock options in SpaceX and Tesla. He cannot sell any of his SpaceX stock for at least a year, so his trillionaire status is “on paper” only. Q: Why does this matter for people in the UK? Musk’s wealth gives him outsized political influence: he has criticised UK leadership, donated heavily to US political campaigns, and led drastic cuts to US government spending that researchers say could cause millions of additional deaths worldwide. It also reignites the debate over wealth inequality and whether the super-rich should pay more tax.
What happens next is uncertain. Musk’s SpaceX shares will remain locked for a year, but he can still exercise options and potentially convert them to cash. The debate over wealth taxes is likely to intensify, with figures like Elizabeth Warren already calling for action. Meanwhile, Musk continues to wield influence in US and global politics, including through his role at Doge and his involvement in controversial aid cuts. For the UK, the immediate focus will be on Musk’s ongoing clashes with the government and the global ripple effects of his policy decisions.