Strategy. The fund invests primarily in equity securities of U.S. issuers. For purposes of the fund's investment policies, equity securities include common stocks and other equity instruments, such as securities of other investment companies (including mutual funds, exchange-traded funds and closed-end funds) that invest primarily in equity securities, depositary receipts, warrants, rights, equity interests in real estate investment trusts (REITs) and preferred stocks. The fund may invest in issuers of any market capitalization. The fund may invest in securities in any industry or market sector. The fund may invest in fewer than 40 securities. The fund may invest in initial public offerings of equity securities. In addition, the fund may invest up to 20% of its total assets in securities of … Show more… The fund invests primarily in equity securities of U.S. issuers. For purposes of the fund's investment policies, equity securities include common stocks and other equity instruments, such as securities of other investment companies (including mutual funds, exchange-traded funds and closed-end funds) that invest primarily in equity securities, depositary receipts, warrants, rights, equity interests in real estate investment trusts (REITs) and preferred stocks. The fund may invest in issuers of any market capitalization. The fund may invest in securities in any industry or market sector. The fund may invest in fewer than 40 securities. The fund may invest in initial public offerings of equity securities. In addition, the fund may invest up to 20% of its total assets in securities of non-U.S. issuers, including up to 5% of its total assets in the securities of emerging market issuers. The fund may invest in debt securities. Generally, the fund may acquire investment grade debt securities, but the fund may invest up to 5% of its net assets in below investment grade debt securities (known as junk bonds), including below investment grade convertible debt securities. The fund also may hold cash or other short-term investments. The fund may, but is not required to, use derivatives, such as stock index futures and options. The fund may use derivatives for a variety of purposes, including: in an attempt to hedge against adverse changes in the market price of securities, interest rates or currency exchange rates; as a substitute for purchasing or selling securities; to attempt to increase the fund's return as a non-hedging strategy that may be considered speculative; to manage portfolio characteristics; and as a cash flow management technique. The fund may choose not to make use of derivatives for a variety of reasons, and any use may be limited by applicable law and regulations. The funds investment adviser uses a valuation-conscious approach to select the funds investments based upon the recommendations of the advisers research teams. The research teams use a two-step process in selecting securities that combines fundamental and quantitative research. First, the teams assess whether a companys fundamentals - financial condition, management, and position in its industry - indicate strong prospects for growth and attractive valuations. Second, the teams employ a quantitative, growth-oriented approach to construct the portfolio, emphasizing those securities believed to have attractive prospects for earnings and revenue growth. The adviser generally sells a portfolio security based upon the same criteria it uses to select securities. The adviser integrates environmental, social and corporate governance (ESG) considerations into its investment research process by evaluating the business models and practices of issuers and their ESG-related risks. The adviser believes ESG analysis is a meaningful facet of fundamental research, the process of evaluating an issuer based on its financial position, business operations, competitive standing and management. This process considers ESG information, where available, in assessing an investments performance potential. The adviser generally considers ESG information in the context of an issuers respective sector or industry. The adviser may consider ESG ratings provided by third parties or internal sources, as well as issuer disclosures and public information, in evaluating issuers. ESG considerations are not a primary focus of the fund, and the weight given by the adviser to ESG considerations in making investment decisions will vary and, for any specific decision, they may be given little or no weight. Notwithstanding the foregoing, the adviser generally will not invest fund assets in companies engaged in the production, sale, storage of, or providing services for, certain controversial weapons, including chemical, biological and depleted uranium weapons and certain antipersonnel mines and cluster bombs. Show less