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George Soros

George Soros (b. 1930): founder of the Quantum Fund and theorist of reflexivity — markets do not reflect reality, they alter it. On 16 September 1992 his position against sterling bent the Bank of England.

On this page

The Alchemy of Finance (1987): "It's not whether you're right or wrong, but how much money you make when you're right and how much you lose when you're wrong."
Period b. 1930
Founded Quantum Fund (1973, with Jim Rogers)
Lens Global macro
Famous moment Black Wednesday, 16 September 1992: ~$1 billion on sterling's exit from the ERM

Who he is

Portrait — George Soros

A survivor of occupied Budapest, an émigré to London trained in philosophy under Karl Popper before finance, Soros built with the Quantum Fund one of the most extraordinary track records in the history of money management: compound returns above 30% a year for over two decades. The wider public knows him for 1992: the bet that sterling could not stay in the ERM, pressed until it broke the Bank of England's defence — "the man who broke the Bank of England".

Contribution

  • Reflexivity — his central idea: prices do not merely reflect fundamentals, they feed back into them (easy credit inflates the collateral that justifies more credit…). Boom-bust cycles are not anomalies: they are the physiology of a reflexive system. For the practitioner: regimes exist, feed themselves, then break.
  • Operational fallibilism — from Popper: every thesis is a hypothesis awaiting refutation. The talent his colleagues cite most was not being right: it was liquidating without hesitation when facts contradicted the thesis.
  • Going for the jugular — when conviction and asymmetry coincide, the position is sized big (Druckenmiller proposed the '92 short; Soros told him to multiply it). Exposure is not constant: it follows the quality of the opportunity.
  • The body as an indicator — famous and only half a joke: back pain as the signal that something in the portfolio is wrong — the instinctive version of risk monitoring.

What today's students learn from him

  1. Look for the points where collective perception and facts diverge unsustainably: that is where the great asymmetries live.
  2. Conviction is for sizing, not for resisting the facts: strong thesis + refutation = immediate exit.
  3. The P&L is made of how much you win when you win: frequency and magnitude are separate variables (see expectancy).

Study path

In preparation — This entry will be extended with the boom-bust model and the 1992 case step by step. The basics: scenario-analysis and market-regime.

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