Assets under management (AUM) held in short and leverage (S&L) exchange-traded products at the end of August stood at $60bn, unchanged from the end of July but up 3% from the end of December 2013, according to the monthly report from specialist short and leverage exchange-traded product provider Boost ETP. The Boost Short & Leveraged ETFs/ETPs Global Flows Report for August revealed that S&L investor sentiment in equities was mixed during the month. While bearish repositioning drove