D avid Kabiller is an American billionaire and a co-founder of AQR Capital Management, a leading global quantitative investment firm. He founded the firm in 1998 alongside Clifford Asness, John Liew, and Robert Krail, all of whom he had worked with at Goldman Sachs. While his partners were the primary architects of the firm's quantitative models, Kabiller's crucial role was to build the business and communicate its complex strategies to a global client base.

As the Head of Client Strategies, he has been the public face and the business-building force behind AQR's growth into a major asset manager with hundreds of billions of dollars under management. The firm is a pioneer in factor-based investing, applying academic financial theories to real-world portfolios. Kabiller's ability to translate complex quantitative concepts for institutional investors has been instrumental to the firm's success. His wealth is derived from his founding stake in the company he helped build from the ground up.