What moved it
The list gives the figure without a single reason. Between lists his fortune moved with his Tesla shares and the value put on his SpaceX stake.
Against today
Our checkpoint at the close on 15 October 2026 was $924.3 billion, which is 66 times his March 2017 figure. Against the $22 million he took from selling Zip2 in 1999, the 2017 figure was 632 times as much.
Where the figure comes from
His entry on the Forbes World’s Billionaires list, published each March and measured a few weeks before: Forbes, 23 August 2017 . Every year is on History.