The American Century Strategic Allocation Aggressive Fund R6 Cl (AAAUX) is a mutual fund that aims to provide aggressive growth by investing in a diverse mix of stocks, bonds, and other securities. It is managed by American Century Investments and is designed for investors with a higher risk tolerance. The fund's portfolio is actively managed and may shift its asset allocation based on market conditions. With a focus on long-term growth, this fund may be suitable for investors seeking higher potential returns.