Elon Musk said he holds less than 0.1% of his net worth in cash, despite being widely ranked as the world’s richest person.

The comment was posted on X in response to a prediction by Kalshi suggesting a high probability that Musk could eventually become a trillionaire.

“My ‘net worth’ is almost entirely due to my ownership stakes in Tesla and SpaceX. I have <0.1% that is cash,” Musk wrote.

Musk’s fortune is largely tied to his equity in Tesla and SpaceX. He also noted that employees at both companies receive stock compensation, and that Tesla is majority-owned by retail and institutional investors.

According to Forbes, Musk’s estimated net worth stands at approximately $849.3 billion. If less than 0.1% of that total is held in cash, his liquid holdings would amount to roughly $850 million.

Wealth vs. Liquidity
While the figure may appear staggering, most of Musk’s wealth is not held in readily accessible cash. Instead, it fluctuates based on stock valuations. This means that large swings in Tesla’s share price can significantly impact his net worth on paper.

Financial analysts often distinguish between “paper wealth” — based on equity ownership — and liquid assets that can be quickly deployed. For founders of major companies, net worth is typically concentrated in stock rather than cash reserves.

The exchange has renewed discussion about how billionaire wealth is structured, and how much of it exists as market-based valuations rather than liquid capital.