Elon Musk's net worth tops $800bn as SpaceX acquires xAI

Elon Musk has become the first person in history to surpass a net worth of $800 billion, following SpaceX’s all-stock acquisition of artificial intelligence (AI) startup xAI, announced earlier this week. 

The landmark deal has reshaped Musk’s business empire and created the world’s most valuable private company.

The transaction values SpaceX at roughly $1 trillion and xAI at $250 billion, resulting in a combined entity worth about $1.25 trillion. 

According to estimates from Forbes and Bloomberg dated February 4, 2026, Musk’s net worth now ranges between $800 billion and $852 billion, largely reflecting his approximately 43% ownership stake in the merged company, along with his holdings in Tesla and other ventures.

The merger brings together xAI’s advanced AI capabilities, including its Grok model, with SpaceX’s space exploration assets and Starlink satellite network. 

The combined company aims to accelerate innovation in areas such as AI-powered orbital data centres and large-scale space-based computing infrastructure.

Musk described the deal as the unification of his “most ambitious” projects and suggested the company could pursue an initial public offering later in 2026, a move that could further boost its valuation.

Beyond SpaceX and xAI, Musk owns about 12% of Tesla, currently valued near $178 billion, along with stock options estimated at $124 billion. 

These figures exclude a shareholder-approved compensation package that could eventually grant Musk up to $1 trillion in additional Tesla shares if long-term performance targets are met.