Soros's Circle
The philosophers, investors, and policymakers who shaped Soros's thinking — or whose thinking Soros shaped.
Karl Popper
Intellectual mentor — Soros studied under Popper at LSE
Sir Karl Raimund Popper (1902–1994) was an Austrian-British philosopher widely regarded as one of the greatest philosophers of science of the 20th century. His concepts of falsifiability, the Open Society, and the critique of historicism became the foundational pillars of Soros' entire intellectual system — from his theory of reflexivity to his philanthropic mission.
Profile →Co-founder, Quantum FundJim Rogers
Early business partner — co-founded Quantum Fund in 1973
Jim Rogers is an American investor who co-founded the Quantum Fund with George Soros in 1973. During their partnership, the fund achieved extraordinary returns — reportedly over 4,000% in ten years. Rogers retired from the partnership in 1980 and went on to become known as a global macro investor and commodity specialist.
Profile →Portfolio Manager, Quantum Fund (1989–2000)Stanley Druckenmiller
Most important investing partner — executed the 1992 pound trade
Stanley Druckenmiller managed the Quantum Fund as lead portfolio manager from 1989 to 2000. He is widely credited with executing the mechanics of the 1992 British pound trade that made Soros famous. Druckenmiller has said the idea for the pound position was his, though Soros encouraged scaling it up to $10 billion. After leaving Quantum, he ran Duquesne Capital with exceptional results until 2010.
Profile →Development EconomistJeffrey Sachs
Intellectual collaborator on post-Soviet transition economics
Jeffrey Sachs is an American economist and Director of the Center for Sustainable Development at Columbia University. He and Soros collaborated extensively on economic reform strategies for post-communist countries in Eastern Europe in the early 1990s, with Soros funding economic reform programs through his Open Society Foundations that aligned with Sachs' shock therapy prescriptions.
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