The fund primarily aims to achieve its investment goals by allocating at least 80% of its total capital to investment-grade, U.S. dollar-denominated short-term debt instruments. This capital encompasses both the fund's net assets and any borrowed funds used for investment purposes. The debt investments it targets can carry fixed, variable, or floating interest rates. As a fundamental part of its investment approach, the fund may acquire various securities, including corporate bonds, asset-backed securities, and different forms of mortgage-backed and mortgage-related instruments. It also invests in high-quality money market tools, such as commercial paper and certificates of deposit.