World's Billionaires: Elon Musk Tops the List — September 11, 2026

Elon Musk closed out September 11, 2026 atop the World's Billionaires list, an estimated $399.42B, built primarily on Tesla, SpaceX. Right behind: Michael Dell and Jeff Bezos follow in the next spots, at $374.63B and $271.74B respectively. Combined, the 51 people we track here are worth $3.80T, down $43.57B from the prior session.

Larry Page posted the day's biggest gain, adding $1.37B (0.55%) to reach $247.82B (#5). The move traces to Alphabet (Google) (GOOGL), which climbed 0.59% 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 $20.04B (5.08%) to $374.63B (#2). The move traces to Dell Technologies (DELL), which fell 5.35% 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 $79.07B. Mukesh Ambani was the day's biggest move in that group, down $461.08M (0.58%) to $79.07B.

Among the 11 women we track, Alice Walton stays on top at $102.87B. Françoise Bettencourt Meyers was the day's biggest move in that group, down $786.59M (1.13%) to $68.62B.

Among the 8 billionaires under 45 we track, Mark Zuckerberg stays on top at $255.53B. Mark Zuckerberg was the day's biggest move in that group, down $3.26B (1.26%) to $255.53B.

Changpeng Zhao made the biggest rank jump, climbing from #18 to #17, with Daniel Ek and Zhong Shanshan also moving up. Zhong Shanshan slipped the furthest, from #17 to #18, alongside Savitri Jindal and Changpeng Zhao.