UK hedge fund manager Brevan Howard has more than doubled its partnership with 14 promotions designed to spread the ownership among its staff.

The partnership has grown from five members at launch, led by former Credit Suisse trader Alan Howard, to 24. It has a total of 250 staff. Brevan Howard, which this year listed a feeder to its flagship global macro fund, has $13.5bn (€10bn) assets under management, making it one of the UK's five largest hedge fund managers.