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Reportedly, Musk reportedly owns nearly half of SpaceX. Therefore, if the company reaches the projected valuation, his stake could be worth around $841 billion. All of this combined would give Musk a combined fortune of roughly $1.11 trillion.
However, the majority of his net worth is tied to the value of his company shares, which means that if the stock prices of Tesla or SpaceX fluctuate, his net worth would change accordingly.
What a $1 trillion fortune looks like
A net worth of $1 trillion would be larger than the GDP of the majority of countries worldwide. According to the International Monetary Fund, over 20 countries have a GDP of more than $1.1 trillion. The economies of Taiwan, Ireland, Sweden, and Singapore would still fall short of the trillion-dollar mark.
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In comparison to other tech billionaires, Musk is already the richest Billion as per the Bloomberg. If Musk's net worth reaches the estimated $1.11 trillion, it would be greater than the combined fortunes of the next four richest individual that includes Google’s co-founders Larry Page and Sergey Brin, Oracle’s Larry Ellison, and Amazon’s Jeff Bezos. Together, their estimated wealth is calculated at around $1.09 trillion, which is slightly less than Musk's projected $1.11 trillion fortune.
Apart from this, Musk $1 trillion mark is also projected to be larger than the annual economic output of Manhattan, and more than all residential and commercial property combined in Houston.