The investment seeks to provide total return by focusing on investments in income and yield-generating assets. The fund invests substantially all of its assets in the SSgA Income Allocation Portfolio, a separate series of the SSgA Master Trust with an identical investment objective as the fund. As a result, the fund invests indirectly through the Portfolio. It invests the assets of the Portfolio among ETPs that provide exposure to four primary asset classes: (i) domestic and international equity securities; (ii) domestic and international investment grade and high yield debt securities; (iii) hybrid equity/debt securities; and (iv) REITs.