PDT Partners (Process Driven Trading Partners) is a hedge fund company, led by quantitative trader Peter Muller, that was founded in 1993 as part of Morgan Stanley's trading division and spun off as an independent business in 2012.

[5] In January 2011, Morgan Stanley announced that it would spin off PDT into a separate hedge fund in order to comply with the Dodd–Frank Wall Street Reform and Consumer Protection Act.

In October 2012, it was announced that the Blackstone Group had put $500 million into PDT, but without seeking any equity in the hedge fund.

In February 2013, it was announced that the fund had raised $2.3 billion in total and was beginning operations in London and Hong Kong in addition to New York City.

[5][7] In 2019, Forbes reported that Muller earned around $150 million in the previous year, making its list of the highest-earning hedge fund managers for 2018.