Elon Musk's estimated fortune reached $1.061 trillion on Tuesday as SpaceX shares extended their advance, keeping the world's richest person above the trillion-dollar threshold after a sharp rally at the start of the week.
Forbes' real-time billionaire profile showed his net worth up $14.7 billion, or 1.4%, on October 6. The tracker measures that change against 21:00 UTC on the previous trading day, so it is separate from Monday's stock-market gains.
The estimate places Elon about $61 billion above the trillion-dollar mark. His fortune remains heavily concentrated in company stakes, with SpaceX accounting for the bulk and Tesla a smaller share.
SpaceX extends Monday's advance
Nasdaq's market data showed SpaceX trading at $172.96 at 18:01 UTC on Tuesday, up $1.87, or 1.09%, from Monday's close. The intraday quote is a snapshot, rather than a final closing price.
The latest advance followed a much larger move on Monday. SpaceX closed October 5 at $171.09, compared with $158.96 on Friday, an increase of approximately 7.6%. Monday's session ranged from $158.62 to $172.47, with about 135.7 million shares changing hands.
That left the stock roughly 15.5% above its October 1 close of $148.07 by the end of Monday. Tuesday's quote extended that climb, although the shares remained below the $225.64 high shown in the exchange's trading-range data.
Equity stakes drive the wealth estimate
The billionaire profile puts Elon's SpaceX ownership at 38%, including options. It also lists a Tesla stake of nearly 11%, excluding unvested restricted shares from his 2018 performance award that could add another 8% before taxes if they vest.
Those distinctions matter because a net-worth estimate depends on both asset prices and which holdings are counted. A rising share price can lift the estimated value of a founder's stake without the founder selling stock or receiving cash.
Elon first became a trillionaire on June 12, when SpaceX went public, according to the profile. The company opened its first trading day at a valuation of nearly $2 trillion, making the rocket maker central to the size of his fortune.
His other business interests include The Boring Company and Neuralink. SpaceX also acquired xAI in February in a transaction that valued the combined company at $1.25 trillion; Twitter had been merged into xAI nearly a year earlier.