American Century Mid Cap Value

Objective And Strategy

Objective
Long-term capital growth. Income is a secondary objective.

Strategy
The Portfolio managers look for companies whose stock price may not reflect the company's value. The managers attempt to purchase the stocks of these undervalued companies and hold each stock until the price has increased to, or is higher than, a level the managers believe more accurately reflects the fair value of the company. Under normal market conditions, the portfolio managers will invest at least 80% of the Fund's assets in medium size companies. The portfolio managers consider medium size companies to include those whose market capitalization at the time of purchase is within the capitalization range of the Russell 3000 Index, excluding the largest 100 such companies.

Principle Risks

* This portfolio invests in securities of foreign issuers which involves risks not typically associated with domestic issuers, including currency fluctuations and the possibility of political and economic instability. Emerging markets involve risks in addition to those generally associated with foreign securities, because political and economic structures in many emerging markets may be undergoing significant evolution and rapid development.

* This portfolio invests (or may invest) in securities of companies with micro-, small-, or mid-capitalization. Any investment in micro-, small-, or mid-capitalization companies involves greater risk than that customarily associated with investments in larger, more established companies because of the greater business risks of smaller size, limited markets and financial resources, narrower product lines, and frequent lack of management depth. As such, micro- or small-cap companies may be more subject to erratic and abrupt market movements than securities of larger, more established companies.