An issue that will soon be celebrating its one-year anniversary of live performance is United States Commodity Index Fund (NYSEArca: USCI), which brings a unique methodology to the commodities exchange traded fund space.

The ETF is based on the SummerHaven Dynamic Commodity Index Total Return, which employs a rules-based quantitative formula designed to rebalance underlying positions on a monthly basis in reaction to price signals in these underlying commodities.

Currently, 27 futures contracts are eligible for potential inclusion in the index and 14 are ultimately selected at any given time for investment in the fund.

Currently, top holdings in USCI include Brent Crude oil futures, RBOB Gasoline futures, copper futures, tin futures, and corn futures among others in the metals, energy, and agricultural spaces. [ETF Spotlight: U.S. Commodity Index Fund]