The investment seeks to provide inflation protection and income consistent with investment in inflation-linked securities. The fund seeks to provide inflation protection and income by investing primarily in inflation linked securities. Normally, at least 80% of the fund's assets will be invested in inflation linked bonds issued by U.S. and non-U.S. governments, their agencies or instrumentalities, and corporations. Inflation linked bonds are structured to protect against inflation by linking the bond's principal and interest payments to an inflation index so that principal and interest adjust to reflect changes in the index.