Strategy. Under normal market conditions, the Fund invests at least 80% of its net assets in the equity securities of small-capitalization (small-cap) and mid-capitalization (mid-cap) companies. For this Fund, small-cap companies are companies within the market capitalization range of companies in the Russell 2500 Index, at the time of purchase, and mid-cap companies are companies within the market capitalization range of companies in the Russell Midcap Index, at the time of purchase. Under normal market conditions, the Fund invests predominantly in equity securities, predominantly in common stock. The Fund, from time to time, may have significant positions in particular sectors such as information technology (including technology services and technology equipment and hardware), consumer discretionary, healthcare and industrials. The Fund may make … Show more… Under normal market conditions, the Fund invests at least 80% of its net assets in the equity securities of small-capitalization (small-cap) and mid-capitalization (mid-cap) companies. For this Fund, small-cap companies are companies within the market capitalization range of companies in the Russell 2500 Index, at the time of purchase, and mid-cap companies are companies within the market capitalization range of companies in the Russell Midcap Index, at the time of purchase. Under normal market conditions, the Fund invests predominantly in equity securities, predominantly in common stock. The Fund, from time to time, may have significant positions in particular sectors such as information technology (including technology services and technology equipment and hardware), consumer discretionary, healthcare and industrials. The Fund may make private investments in companies whose securities are not publicly traded (including companies that have not yet issued securities publicly in an initial public offering ("IPO")), often in the form of private placements, which are exempt from registration under the federal securities laws and are only sold to certain investors meeting predefined criteria. The investment manager uses fundamental, "bottom-up" research to seek companies meeting its criteria of growth potential, quality and valuation. In seeking sustainable growth characteristics, the investment manager looks for companies that it believes can produce sustainable earnings and cash flow growth, evaluating the long term market opportunity and competitive structure of an industry to target leaders and emerging leaders. In assessing value, the investment manager considers whether security prices fully reflect the balance of the sustainable growth opportunities relative to business and financial risks. Show less