Elon Musk's Net Worth Surpasses $600 Billion as SpaceX's Valuation Skyrockets

On Monday, December 15, 2025, Elon Musk officially became the first person in the world to achieve a net worth exceeding US$600 billion.

This figure marks a new milestone in personal wealth accumulation.

Forbes estimated Musk's wealth at US$677 billion as of Monday afternoon US time, making him the first individual to surpass the US$600 billion mark.

Meanwhile, the Bloomberg Billionaires Index recorded Musk's wealth at nearly US$638 billion.

This drastic increase was largely driven by the significant increase in the valuation of SpaceX.

Previously, Musk had surpassed the US$500 billion threshold in October 2025.

SpaceX, Elon Musk's innovative rocket company, recently launched a tender offer in early December 2025, valuing the company at approximately US$800 billion.

This valuation represents a dramatic jump, more than double the valuation in August 2025 of around US$400 billion.

The company surpassed the previous record held by OpenAI, owner of ChatGPT, which reached US$500 billion in October 2025. This achievement places SpaceX at the forefront of the private space industry and advanced technology.

Elon Musk is estimated to own approximately 42% of SpaceX's shares.

With this substantial stake, Musk's assets in SpaceX are valued at approximately US$336 billion.

This makes SpaceX the most valuable asset in Musk's wealth portfolio, far surpassing the contributions from his other companies.

Elon Musk's financial future looks increasingly bright with news that SpaceX is preparing for an initial public offering (IPO) planned for 2026.

This IPO is targeted to achieve a highly ambitious valuation of around US$1.5 trillion.

This plan has attracted the attention of many global investors eager for the opportunity to invest in this leading space company.

If the IPO valuation is realized as targeted, Elon Musk's net worth is estimated to increase by around US$168 billion.

This substantial increase in wealth has the potential to make him the world's first trillionaire, a title never before held by anyone in history.

This prospect further solidifies Musk's position as one of the most influential figures in the world of business and technology.

Besides his dominance in SpaceX, Elon Musk's wealth also stems from his ownership of Tesla, a leading electric vehicle manufacturer.

Musk is known to own approximately 12% of Tesla's shares, which continues to be a key pillar of his wealth.

Tesla's stock has performed solidly, rising approximately 13% through 2025 and Tesla shareholders also approved a US$1 trillion compensation package for Musk in November 2025, 

Furthermore, Musk's artificial intelligence startup, xAI, also contributes significantly to his wealth.

xAI is reportedly in advanced talks to raise US$15 billion in new equity funding, with the company's valuation estimated at around US$230 billion.

Forbes estimates that Musk owns approximately 53% of xAI Holdings, which is valued at approximately US$60 billion.