To achieve its objectives the Fund invests at least 80 percent of its net assets (plus any borrowings for investment purposes) in common stocks of U.S. discovery growth companies and other U.S.-traded equity securities of discovery growth companies. As of the date of this prospectus, the Funds subadviser, Zevenbergen Capital Investments LLC (ZCI), considers discovery growth companies to be those companies that have higher-than-average revenue growth potential and are typically in earlier or more dynamic stages of their growth lifecycle, which may be attributable to the development and application of novel technologies to products, services or business operations, participation in industries undergoing significant technological transformation or other differentiating factors. This will typically be achieved through a concentrated portfolio of 20–40 holdings at a time.