World's Billionaires: Elon Musk Tops the List — August 17, 2026

Elon Musk closed out August 17, 2026 atop the World's Billionaires list, an estimated $390.67B, built primarily on Tesla, SpaceX. Right behind: Michael Dell and Jeff Bezos follow in the next spots, at $363.57B and $281.64B respectively. Combined, the 51 people we track here are worth $3.83T, down $127.11M from the prior session.

Prince Alwaleed bin Talal posted the day's biggest gain, adding $135.05M (0.61%) to reach $22.31B (#33). The move traces to Kingdom Holding (4280.SR), which climbed 1.43% on the day — most of a billionaire's daily swing simply follows their main stock's share price.

On the other side, Tadashi Yanai took the day's steepest loss, down $249.05M (0.33%) to $74.93B (#15). The move traces to Fast Retailing (Uniqlo) (9983.T), which fell 0.75% on the day — most of a billionaire's daily swing simply follows their main stock's share price.

Among the 7 Indian billionaires we track, Mukesh Ambani stays on top at $80.90B. Mukesh Ambani was the day's biggest move in that group, up $10.36M (0.01%) to $80.90B.

Among the 11 women we track, Alice Walton stays on top at $107.64B. Françoise Bettencourt Meyers was the day's biggest move in that group, up $35.60M (0.05%) to $68.95B.

Among the 8 billionaires under 45 we track, Mark Zuckerberg stays on top at $236.45B.