Steve Ballmer Gains $20.17B in a Day as MSFT Jumps 15.51%

Steve Ballmer added $20.17B of net worth on July 31, 2026, one of the day's biggest moves among the world's richest people. The swing (+$20.17B, or 14.93%) leaves the fortune at an estimated $155.22B, ranked #9 on our real-time list.

The move traces to MSFT, the listed company behind most of the fortune, which climbed 15.51% on the day to 451.10 USD per share. Because a billionaire's wealth is concentrated in stock, daily net worth simply follows the share price multiplied by the shares held.

The gain narrows the gap to Larry Ellison, who sits one place higher at $155.32B — now $99.70M away. Behind, Bernard Arnault follows at $134.55B.

Former CEO of Microsoft and owner of the Los Angeles Clippers.

Figures are our real-time estimates, derived from public stock holdings plus a static estimate for private assets — directional, not audited, and they will move again with the next trading session.