The investment objective of the Fund is to seek to provide investors with a total return, taking into account both capital and income returns, which reflects the return of the Bloomberg US Mortgage Backed Securities Index. The Index measures the performance of investment grade US Dollar (US$) denominated pass-through mortgage backed securities (MBS) guaranteed and issued by the U.S. Government agencies Ginnie Mae (GNMA), Fannie Mae (FNMA), and Freddie Mac (FHLMC).