Even as assets under management increased, hedge fund manager Och-Ziff Capital Management's initial public offering in November produced expenses that led to a net loss of $915m (€613.2m) for 2007, according to generally accepted accounting principles.

The company’s IPO produced $3.3bn in expenses stemming from a reorganization of the business. However, the hedge fund manager's revenues rose to $1.5bn in 2007 compared with $1bn in 2006.