(Bloomberg) -- The outsiders that Michael Hintze brought in to his secretive hedge fund firm didn’t last long. Nor did their growth plans. The billionaire’s firm, known as CQS, a bastion of money-making whose flagship fund has returned more than three times the average of hedge fund peers since it opened in 2005, is now headed in reverse. The Hintze-managed fund plunged as much as 45% in March and April -- its worst-ever loss -- missing the rebound that followed the initial shock from the coronavirus pandemic even as peers recovered to post gains in April.