Robert Ziff inherited a large stake in the Ziff family fortune, then joined his brothers in building Ziff Brothers Investments into a vehicle that materially increased the family's wealth. [1][2]
The publishing sale supplied the starting fortune
Robert Ziff's fortune began with Ziff Davis, the publishing company co-founded by his grandfather and expanded by his father into a major magazine business. [1]
His father sold Ziff Davis for $1.4 billion in 1994, and Robert and his brothers inherited the resulting family wealth rather than creating that initial capital pool. [1][2]
Forbes' historical coverage classified Robert's source of wealth as inheritance and hedge funds, reflecting the combination of inherited publishing proceeds and later investment activity. [2]
The family investment platform compounded the inherited base
Robert and his brothers created Ziff Brothers Investments and deployed the family capital through hedge funds in the United States and London, alongside other securities investments. [1]
Forbes says the brothers greatly expanded their inheritance through those investments. Robert therefore fits a mixed pattern: active investment work materially increased the fortune, while the original inherited hundreds of millions remained a major economic advantage from the outset. [1][2]
Sources for background
Sources reviewed Sep 26, 2026.
- Robert Ziff · Forbes · Mar 10, 2026
- The World's Billionaires: North America by Age · Forbes · Mar 8, 2007
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