Strategy. The Fund seeks to meet its objective by investing in a portfolio of equities, which include common stock and other equity securities, of issuers located in the U.S. The portfolio managers seek to identify exceptional growth businesses in the U.S. and to own them for long enough that the advantages of their business models and the strength of their cultures support positive relative performance over the long term. Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in common stocks and other equity securities of companies whose principal activities are in the U.S. The Fund invests in equity securities either directly or indirectly, such as through depositary receipts, and may … Show more… The Fund seeks to meet its objective by investing in a portfolio of equities, which include common stock and other equity securities, of issuers located in the U.S. The portfolio managers seek to identify exceptional growth businesses in the U.S. and to own them for long enough that the advantages of their business models and the strength of their cultures support positive relative performance over the long term. Under normal circumstances, the Fund invests at least 80% of its net assets (plus any borrowings for investment purposes) in common stocks and other equity securities of companies whose principal activities are in the U.S. The Fund invests in equity securities either directly or indirectly, such as through depositary receipts, and may invest in preferred stocks, convertible securities and warrants. The Fund typically invests primarily in issuers with a market capitalization of more than $1.5 billion at the time of purchase and may participate in initial public offerings ( "IPOs" ). The portfolio managers employ a bottom-up approach to stock selection, seeking to identify companies they believe have attractive long-term growth prospects, and select companies without being constrained by a benchmark. Under normal circumstances, the intended outcome is a portfolio typically consisting of between 30 and 50 growth companies with the potential to outperform the Fund's benchmarks over the long term. The portfolio managers focus on company research and the long-term outlook of companies and industries. Ideas can come from a wide variety of sources, including, but not limited to, research trips, company meetings, and relationships with industry thought leaders and academic institutions. Stock ideas are normally researched to assess a range of factors, including: long-term growth potential, geographic and industry positioning, competitive advantage, management, financial strength and valuation. The Fund is a non-diversified fund, which means that it may invest a relatively large percentage of its assets in a small number of issuers, industries or sectors The Fund aims to hold securities for long periods (typically at least 5 years) which generally results in relatively low portfolio turnover and is in line with the portfolio managers' long-term investment outlook. When assessing a company's long-term growth prospects, the portfolio managers seek to identify and to incorporate a range of factors that are material to managing the Fund's investment risks and maximizing capital appreciation. Such factors potentially include the environmental, social, and/or governance characteristics of the company, such as stewardship, sustainable business practices, and/or corporate culture. Show less