The investment seeks to provide shareholders of the fund with liquidity and as high a level of current income as is consistent with the preservation of capital. The fund invests at least 99.5% of its total assets in cash, securities issued or guaranteed by the United States or certain U.S. government agencies or instrumentalities and/or repurchase agreements that are collateralized fully by these types of obligations. It will invest in securities with maturities of (or deemed maturities of) 397 days or less and will maintain a dollar-weighted average portfolio maturity of 60 days or less and a dollar-weighted average portfolio life of 120 days or less.