Invesco S&P SmallCap Low Volatility ETF(AMEX:XSLV)

XSLV offers a small-cap version of its well-known large-cap sibling fund, SPLV. By targeting low volatility, XSLV takes a different approach to the small-cap US equity space than most of its competitors. To construct its portfolio, the fund starts with the S&P SmallCap 600 (commonly known as the S&P 600) and selects the 120 least volatile securities. It then weights those securities inversely by volatility. That is, lower volatility means higher weighting. XSLVs low-volatility agenda leads the fund to different sector and industry exposure than its vanilla counterparts. The index is rebalanced on a quarterly basis.