The State Street DoubleLine Total Return Tactical ETF seeks to maximize total returnProvides actively managed core fixed income exposure benchmarked to the Bloomberg US Aggregate Bond IndexCombines traditional and non-traditional fixed income asset classes with the goal of maximizing total return over a full market cycle through active sector allocation and security selectionSeeks to outperform the benchmark, in part by exploiting mispriced areas of the bond market while also including asset classes not included in the index such as high yield bonds and emerging markets debt