What moved it
His first year on the annual billionaires list, on his Tesla and SpaceX stakes.
Against today
Our checkpoint at the close on 15 October 2026 was $924.3 billion, which is 462 times his March 2012 figure. Against the $22 million he took from selling Zip2 in 1999, the 2012 figure was 91 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, 12 March 2012 . Every year is on History.