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Billionaire Index

A daily ranking of the world's richest people

Last updated: November 11, 2026 · $11.70T tracked

Methodology

No. 54Italy

Andrea Pignataro

Financial software · St. Moritz

Net worth

$40.3B

Today

−$269−0.00%

Past month

−$131M−0.32%

As of Nov 11, 2026, 1:50 PM EST

Andrea Pignataro is the founder and CEO of ION Group, a London-based financial data and technology firm. Born in Italy, he founded the firm in 1998 while working as a bond trader at Salomon Brothers. ION Group had $31 billion in net assets in 2024 and owns firms ranging from financial markets platform Dealogic to trading software group Fidessa. The group is organized in five main divisions: markets, analytics, core banking, corporates and credit information. Pignataro also owns a collection of luxury villas and hotels on the island of Canouan in St. Vincent and the Grenadines.

Net worth over time

−0.32%−$131M over the past month
$41B$40B$40B
Oct 12Nov 11

Principal holdings

1 positions
CompanyShareValue

Private holdings

100.0%$40.3B