The investment seeks high current income with liquidity and stability of principal. The fund normally invests its assets exclusively in debt securities issued or guaranteed by the U.S. government, or by U.S. government agencies or instrumentalities or GSEs, and repurchase agreements fully collateralized by U.S. Treasury and U.S. government securities. The dollar-weighted average maturity of the fund will be 60 days or less and the dollar-weighted average life to maturity will be 120 days or less. It may invest significantly in securities with floating or variable rates of interest. Their yields will vary as interest rates change.