The fund invests in other American Century Investments mutual funds (the underlying funds) that represent a variety of asset classes and investment styles. Its asset allocation strategy emphasizes investments in equity securities, but maintains a portion of the fund's assets in fixed-income securities and short-term investments. The fund invests 79% of its assets in underlying funds that invest in stocks, 20% of its assets in underlying funds that invest in bonds, and 1% of its assets in underlying funds that invest in cash equivalents.