The investment seeks to replicate, net of expenese, theSummerHaven Copper Index. The fund will invest to the fullest extent possible in the Benchmark Component Copper Futures Contracts. It also invests in Treasuries and holds cash and/or cash equivalents to meet its current or potential margin or collateral requirements with respect to its investments in Copper Interests and invests cash not required to be used as margin or collateral. The index is a single-commodity index designed to be an investment benchmark for copper as an asset class. The Copper Index is composed of copper futures contracts on the COMEX exchange.