This ETF offers an option for investors looking to gain exposure to the U.S. financial sector but looking to avoid the potential pitfalls of products linked to market cap-weighted indexes--such as XLF. RWW is a revenue-weighted product, meaning that the allocation to each individual security is determined based on top line revenue (as opposed to market capitalization). This results in a unique risk/return profile, as revenue-weighting has performed reasonably well in recent years compared to other methodologies. This ETF can be a useful tool for those looking to overweight the financial sector in their portfolio. While RWW includes about 80 individual holdings, the concentration in the ten largest components is significant, as is the bias towards large cap securities. Those seeking more balanced exposure may consider the equal weighted RYF or the small cap PSCF. Those seeking to minimize expenses may prefer XLF or FFL, both of which are considerably cheaper than RWW.