Sector ETFs personal shares in corporations pursuing related types of business or offering related services. There is a big selection of equity ETFs to select from, so understanding about the various subtypes can help you discover one that fits your portfolio. Depending on the index tracked by the ETF, it might personal shares issued by corporations from around the globe or it may limit its investable universe to firms within the United States. Some ETFs allow companies of all shapes and sizes, whereas others restrict their holdings primarily based on the particular characteristics of an organization. Because there are such a lot of variables, the variety of stocks held by an ETF can range from lower than 25 to over 7,000. Shares of ETFs are bought and offered at market price and usually are not individually redeemed from the funds.