The fund normally invests at least 80 percent of its net assets (plus any borrowings for investment purposes) in the securities of health care companies. The fund defines health care companies as companies engaged in health care innovations, such as developing new and effective therapies, pharmaceuticals, biotechnology, life sciences tools and services, managed health care, and/or health care equipment, supplies, providers, services, distributors, and facilities. The fund references the MSCI GICS (Global Industry Classification Standard) Health Care sector to identify such companies.