United States Commodity Index Funds Trust operates two exchange-traded commodity pools that provide public investors with passive exposure to diversified commodities through futures contracts. The USCI fund tracks a 27-component broad commodity index spanning energy, metals, and agriculture, while CPER specializes in copper futures; both are managed by U.S. Commodity Funds LLC to track their respective SummerHaven indices with monthly rebalancing. The trust generates revenue primarily from management fees charged as a percentage of net assets, serving individual shareholders who purchase shares on NYSE Arca and working with authorized institutional participants (market makers) to create and redeem share baskets, thereby offering retail and institutional investors systematic commodity exposure for portfolio diversification and inflation protection without active management.