A 34-year-old trader at Goldman Sachs made a $100 million profit

A 34-year old trader at Goldman Sachs made a $100 million profit - and he is part of a dying breed

You might have heard that traders at the biggest US investment banks have been curtailed. So how is it that a 34-year old Goldman Sachs trader made a $100 million profit in just a matter of months?

http://www.businessinsider.com/goldman-sachs-tom-malafronte-junk-bond-trader-2016-10