The investment seeks to replicate as closely as possible, before fees and expenses, the price and yield performance of the Barclays AMT-Free Short Continuous Municipal Index (the "Short Index"). The fund normally invests at least 80% of its total assets in fixed income securities that comprise the Short Index. The Short Index is comprised of publicly traded municipal bonds that cover the U.S. dollar denominated short-term tax-exempt bond market. The fund is non-diversified.