Dushyant Chadha, the former head of equity derivatives for the Americas at Deutsche Bank in New York, has been hired by UBS. Chadha will join UBS in New York in an undisclosed role. It is understood that he will report to the bank's head of global equity derivatives, Roger Naylor , who is based in London. Chadha joined Deutsche Bank in 2009 as head of equity derivatives, global markets division North America. He was behind the expansion of the German bank's North America equity derivatives tea