The investment portfolio, which is designed to track a specific index, typically consists of between one and six standardized futures contracts tied to various base metals. These contracts pertain to commodities like aluminum, copper, lead, zinc, nickel, and tin, and are primarily traded on prominent exchanges such as the Chicago Mercantile Exchange (CME) or LME Inc. To achieve its investment objective, the fund generally adopts a "replication" strategy, meaning it invests in all components of the underlying index, maintaining roughly proportional allocations.