This fund offers exposure to the U.S. financial services industry, a sub-sector of the general financial sector that includes many of the country's largest banks, as well as real estate and general finance firms. Given this narrow focus, IYG likely doesn't have much appeal to those building a long-term portfolio; it is more appropriate for those looking to tilt exposure towards the financial sector or even pull off a short-term trade designed to capitalize on short-term mispricings. IYG is dominated by large caps, and subject to significant concentration issues. Though there are well more than 100 individual components, a small handful of banks account for the bulk of the underlying portfolio. Those seeking to fine tune exposure may have use for IYG, but most will prefer broader financial ETFs such as XLF or FFL, both of which are considerably cheaper than this fund.