SpaceX went public Friday, with shares trading at just above $150 in a hotly anticipated initial public offering that values Elon Musk’s rocket and AI company at $2 trillion. With this, Musk has now made history as the world’s first trillionaire. 

SpaceX began trading on the Nasdaq on Friday after pricing its IPO at $135 per share, valuing the company at nearly $2 trillion. 

Musk celebrated the market debut Friday, jointly ringing the Nasdaq opening bell from SpaceX headquarters in Texas. 

SpaceX, which Musk founded in 2002, sold 556 million shares Thursday at an initial price of $135 a share, the company confirmed, marking the biggest IPO in history. Friday’s market debut represents an 11% increase on that pricing.

The milestone marks a new chapter in the rapid accumulation of wealth among technology entrepreneurs, as private companies linked to artificial intelligence, space and advanced manufacturing create fortunes at an unprecedented pace.

Forbes estimated that Musk’s net worth increased by $188 billion after SpaceX priced its shares, rising from an estimated $982 billion on Thursday evening to $1.1 trillion following the market debut.

Musk, who serves as SpaceX’s chairman, chief executive and chief technology officer, owns about 4.8 billion shares in the company valued at roughly $715 billion, along with another 350 million stock options worth about $50 billion, giving him an estimated 38% stake, according to Forbes.

The SpaceX listing adds to Musk’s holdings across several technology companies, including electric vehicle maker Tesla and artificial intelligence ventures, reinforcing his position as the world’s wealthiest individual.

Musk first appeared on Forbes’ annual billionaire rankings in 2012 with an estimated fortune of $2 billion, placing him at No. 634 globally. He became the world’s richest person for the first time in January 2021 after a surge in Tesla’s share price pushed him ahead of Amazon founder Jeff Bezos.