The former chief risk officer of Man Group’s quant unit AHL is returning to his trading roots with the launch of a new hedge fund backed by Swedish manager Brummer & Partners.

Douglas Greenig, who left $70 billion alternatives manager Man Group in November, has teamed up with Brummer to launch Florin Court Capital, a Mayfair-based quantitative global macro manager that is expected to launch its fund in the first half of this year.