World's Billionaires: Michael Dell Tops the List — September 12, 2026

Michael Dell closed out September 12, 2026 atop the World's Billionaires list, an estimated $417.10B, built primarily on Dell Technologies. Right behind: Elon Musk and Jeff Bezos follow in the next spots, at $400.20B and $276.24B respectively. Combined, the 51 people we track here are worth $3.86T, up $61.89B from the prior session.

Michael Dell posted the day's biggest gain, adding $42.47B (11.34%) to reach $417.10B (#1). The move traces to Dell Technologies (DELL), which climbed 11.98% on the day — most of a billionaire's daily swing simply follows their main stock's share price.

On the other side, Larry Ellison took the day's steepest loss, down $2.93B (1.6%) to $180.31B (#7). The move traces to Oracle (ORCL), which fell 1.74% 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 $78.18B. Mukesh Ambani was the day's biggest move in that group, down $902.75M (1.14%) to $78.18B.

Among the 11 women we track, Alice Walton stays on top at $103.58B. Alice Walton was the day's biggest move in that group, up $710.00M (0.69%) to $103.58B.

Among the 8 billionaires under 45 we track, Mark Zuckerberg stays on top at $256.81B. Mark Zuckerberg was the day's biggest move in that group, up $1.28B (0.5%) to $256.81B.

Michael Dell made the biggest rank jump, climbing from #2 to #1, with Elon Musk also moving up. Elon Musk slipped the furthest, from #1 to #2, alongside Michael Dell.