The investment seeks current income with capital preservation while maintaining liquidity. The fund invests primarily in liquid, high quality U.S. dollar-denominated money market instruments of U.S. and foreign financial issuers and non-financial issuers. It also invests in obligations issued or guaranteed by the U.S. government and its agencies and instrumentalities. The fund's money market investments may include commercial paper, corporate debt obligations, debt obligations (including certificates of deposit and promissory notes) of U.S. banks or foreign banks, or of U.S. branches or subsidiaries of foreign banks, etc.