American Century Short Duration Fund A Class

Over

The fund invests at least 65% of its assets in investment-grade, non-money market debt securities. It invests in debt securities such as notes, bonds, commercial paper, mortgage- or asset backed securities, collateralized loan obligations, collateralized mortgage obligations, and U.S. Treasury securities. These securities may be payable in U.S. or foreign currencies. The fund may invest up to 35% of its assets in high-yield debt securities.