Strategy. The fund normally invests at least 80% of its net assets (plus any borrowings for investment purposes) in the common stocks of companies engaged in the research, development, production, or distribution of products or services related to health care, medicine, or the life sciences (collectively termed health sciences). Any derivatives that provide exposure to the investment focus suggested by the funds name, or to one or more market risk factors associated with the investment focus suggested by the funds name, are counted (as applicable) toward compliance with the funds 80% investment policy. While the fund can invest in companies of any size, the majority of fund assets are expected to be invested in large- and mid-cap companies. The fund defines … Show more… The fund normally invests at least 80% of its net assets (plus any borrowings for investment purposes) in the common stocks of companies engaged in the research, development, production, or distribution of products or services related to health care, medicine, or the life sciences (collectively termed health sciences). Any derivatives that provide exposure to the investment focus suggested by the funds name, or to one or more market risk factors associated with the investment focus suggested by the funds name, are counted (as applicable) toward compliance with the funds 80% investment policy. While the fund can invest in companies of any size, the majority of fund assets are expected to be invested in large- and mid-cap companies. The fund defines the health sciences industry broadly and divides it into four main areas: pharmaceutical companies; health care services companies; medical products and devices providers; and biotechnology firms. The funds allocation among these four areas will vary depending on the relative potential the adviser sees within each area and the outlook for the overall health sciences sector. The fund uses fundamental, bottom-up analysis that seeks to identify high-quality companies and the most compelling investment opportunities. In general, the fund follows a growth investment strategy, seeking companies whose earnings are expected to grow faster than inflation and the economy in general. When stock valuations seem unusually high, however, a value approach, which gives preference to seemingly undervalued companies, may be emphasized. The fund generally seeks investments in companies that are developing new and effective medicines, as well as companies whose business models reduce costs or improve quality in health care systems. While most assets are typically invested in U.S. common stocks, the fund may invest in foreign stocks in keeping with its objective(s). The funds investments may include holdings in privately held companies and companies that only recently began to trade publicly. Show less