The Zacks Micro Cap Index is designed to identify a group of micro-cap stocks with the greatest potential to outperform passive benchmark micro-cap indexes and other actively managed U.S. micro-cap strategies. Due to their low correlation to large, medium and small-sized companies, micro caps may complement existing blended portfolios by improving risk-adjusted performance. The Index constituent selection methodology utilizes a proprietary methodology that identifies securities that offer the greatest potential to outperform on both an absolute and risk adjusted basis while maintaining industry diversification.