Though they became known for employing leverage and taking risk, the defining attribute of most hedge funds was the enormous amounts of money the people running them were taking in: The fees they charged were generous, typically a “management fee” of 2 percent of assets and a “performance fee” of 20 percent of the profits each year. Before earning anything for his or her investors, the manager of a $2 billion fund would be positioned to make $40 million in fees just to keep the place running.

