This ETF gives investors a way to play regional banks, a sub-sector of the financial sector that offers a unique risk/return profile relative to traditional financial exposure. Whereas financial funds such as XLF are dominated by large cap companies, IAT maintains significant exposure to small and mid cap banking stocks, many of which are not impacted by the factors that drive performance of big Wall Street banks. While IAT casts a reasonably wide net--it includes more than 60 individual holdings--exposure is concentrated in a handful of companies. The top two holdings account for close to a third of assets, meaning that a couple of stocks will have a major impact on total fund returns. Other regional bank ETFs include KRE and RKH, which is not technically an ETF and may present significant concentration issues. IAT is a decent option for regional bank exposure, but we like KRE much better; the equal-weighting strategy of that fund delivers more balanced exposure, while the lower expense ratio delivers better cost efficiency.