The XLV ETF, or the Health Care Select Sector SPDR Fund, is an exchange-traded fund that focuses on the health care sector of the U.S. stock market. It aims to provide investors with exposure to companies involved in various health care industries, including pharmaceuticals, biotechnology, and medical devices. Investing in the XLV ETF allows individuals to diversify their portfolios by gaining access to a wide range of health care stocks without having to buy each one individually. This fund is designed to track the performance of the Health Care Select Sector Index, making it a popular choice for those interested in health care investments.