World's Billionaires: Elon Musk Tops the List — August 15, 2026

Elon Musk closed out August 15, 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 $10.28B from the prior session.

Elon Musk posted the day's biggest gain, adding $1.14B (0.29%) to reach $390.67B (#1). The move traces to Tesla (TSLA), which climbed 0.68% on the day — most of a billionaire's daily swing simply follows their main stock's share price.

On the other side, Michael Dell took the day's steepest loss, down $4.57B (1.24%) to $363.57B (#2). The move traces to Dell Technologies (DELL), 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.

Among the 11 women we track, Alice Walton stays on top at $107.64B. Alice Walton was the day's biggest move in that group, up $312.50M (0.29%) to $107.64B.

Among the 8 billionaires under 45 we track, Mark Zuckerberg stays on top at $236.45B. Mark Zuckerberg was the day's biggest move in that group, down $1.27B (0.53%) to $236.45B.