This ETF is one of several options available to investors looking to access mid cap U.S. stocks exhibiting growth characteristics, such as low dividend yields and high pricing multiples. As such, RFG may be a useful tool for those looking to implement a tactical tilt towards a sector of the U.S. equity market that may perform relatively well in certain economic environments. It is probably too targeted for those looking to build a long-term, buy-and-hold portfolio, though it can potentially useful for fine-tuning exposure offered by other ETFs. RFG is noteworthy because of the "pure style" distinction, making this product is very different from funds like IJK and IWP, which often have considerable overlap with their value counterparts. RFG focuses on a much smaller universe of mid cap growth stocks, including only those with the most significant growth characteristics. So for investors seeking to establish a growth tilt, RFG will be a much more effective tool than broadly based funds that cast a significantly wider net and are likely to include value stocks as well.