Theodore Rosen Aronson was born in Pennsylvania, United States.
Theodore Aronson is the founder of AJO (Aronson,Johnson & Ortiz). AJO is an institutional investment advisor. The company has approximately $20 billion under management. Theodore Aronson was a member of the Quantity Shares Group in 1974, when he was still young, which provided innovative practical applications to modern quantitative portfolio management theories. His group managed a large fund, which was the first to be registered with the SEC and the first to use modern portfolio theory.
Aronson is the founder of AJO (Aronson,Johnson & Ortiz). AJO is an institutional investment advisor. The company has approximately $20 billion under management. Theodore Aronson was a member of the Quantity Shares Group in 1974, when he was still young, which provided innovative practical applications to modern quantitative portfolio management theories. His group managed a large fund, which was the first to be registered with the SEC and the first to use modern portfolio theory. Before Théodore Aronson, he founded Addison Capital Management. In addition, Theodore was formerly Chairman of the CFA Institute, and he is also the charter owner of the CFA.