Hungarian immigrant who founded market-making firm Timber Hill and electronic brokerage Interactive Brokers, achieving 70-80% profit margins through relentless automation; 81 years old, still works seven days a week developing new products like forecast trading.
no scored calls yet — needs a stated position or a categorical verdict, with a matured window vs SPY
Relentless automation of brokerage operations creates structural cost advantage, enabling 70-80% profit margins and capital efficiency without outside investors; the firm sits at the intersection of globalization, technology adoption, spreading equity culture, and resource optimization.