Bank of America has poached a portfolio manager from the buy-side. : Yet another high-profile portfolio manager has left the hedge fund world to return to the sell-side. Stephen D’Silva, who spent nearly a decade as a portfolio manager at two different New York hedge funds, has joined Bank of America as a managing director. D’Silva cut his teeth for more than three years in derivatives research and trading at Lehman Brothers until the crisis hit in 2008, according to LinkedIn. He spent the bulk of his career at hedge fund sponsor Laurion Capital Management as a portfolio manager.