The Fund invests at least 80 percent of its total assets in the securities of the Indxx U.S. Infrastructure Development Index (Underlying Index). The Fund's 80 percent investment policy is non-fundamental and requires 60 days prior written notice to shareholders before it can be changed. The Fund may lend securities representing up to one-third of the value of the Funds total assets (including the value of the collateral received). The Underlying Index is designed to measure the performance of U.S. listed companies that provide exposure to domestic infrastructure development, including companies involved in construction and engineering; production of infrastructure raw materials, composites and products; industrial transportation; and producers/distributors of heavy construction equipment (collectively, U.S. Infrastructure Development Companies), as defined by Indxx, LLC, the provider of the Underlying Index (Index Provider).