The LSE Directory / Hedge funds
PDT Partners is a quantitative investment management firm that trades global electronic markets using proprietary, research-driven statistical models rather than discretionary trading calls. Its own site describes the approach as predictions based on data: a research team builds and internally reviews forecasting models, and a technology team converts validated models into automated systems that execute trades across listed equities, futures, and other exchange-traded instruments with minimal manual intervention. The firm traces to 1993, when mathematician Peter Muller, who had joined Morgan Stanley as a proprietary trader in 1992, founded an internal group called Process Driven Trading. It operated inside the bank for two decades before becoming a fully independent hedge fund manager at the start of 2013, after Morgan Stanley announced in 2011 that it would spin the group out to comply with the Dodd-Frank Act's Volcker Rule restrictions on bank proprietary trading. Where many hedge funds compete on discretionary macro or fundamental calls, PDT specializes in statistical arbitrage and systematic, model-driven strategies, and organizes itself into three functions: Research, which develops and peer-reviews trading models; Tech, which builds the production trading systems and infrastructure; and Business Operations, which covers compliance and organizational support. Relative to the scale of capital it runs, the firm keeps a comparatively small headcount, around 250 people split between its New York and London offices, and describes its internal culture as scientific rather than that of a conventional trading floor, with new model ideas subject to internal research and review before being put into production. Muller studied mathematics at Princeton, played in a jazz band, and worked at the quantitative research firm BARRA before joining Morgan Stanley in 1992. He ran Process Driven Trading as an internal unit for roughly two decades, including a sabbatical around 1999 to 2000 during which he stepped back from day-to-day trading and took up busking in New York subway stations. When the group spun out at the start of 2013, its roughly 80-person staff and all of its trading positions moved with it; Blackstone provided early outside capital of $500 million on a seven-year lockup without taking an equity stake in the new firm, a structure Bloomberg described at the time as an unusual show of confidence in Muller. PDT reported approximately $10.8 billion in discretionary assets under management in a Form ADV filed in April 2024, up from roughly $4.5 billion reported in a 2016 profile of the firm; Bloomberg had earlier reported the strategy averaged annual returns of more than 20 percent through 2010 during its years inside Morgan Stanley. Muller remains the firm's founder and chief executive. Outside PDT, he maintains a separate career as a musician and composer, releasing albums under his own name and performing publicly, a detail frequently noted in profiles of the firm as reflecting its self-described culture of intellectual curiosity beyond conventional trading-house norms.
