United States Commodity Index Funds Trust is a Delaware statutory trust that operates two commodity ETFs: USCI (United States Commodity Index Fund) and CPER (United States Copper Index Fund), both listed on NYSE Arca. USCI tracks the SummerHaven Dynamic Commodity Index Total Return, a diversified index of 14 commodity futures contracts selected monthly from a universe of 27 eligible commodities across petroleum, precious metals, industrial metals, grains, and a non-primary sector. CPER tracks the SummerHaven Copper Index Total Return, focused entirely on copper futures traded on COMEX. Both funds are managed by United States Commodity Funds (USCF), a registered commodity pool operator and subsidiary of The Marygold Companies. USCF charges annual management fees of 0.80% of average daily net assets for USCI and 0.65% for CPER, making fee revenue directly tied to AUM. Both funds invest proceeds from share sales into commodity futures contracts, with the bulk of assets held in short-term U.S. Treasuries as margin collateral, which earn interest income that accrues to investors. A key feature of both funds is their dynamic, rules-based index methodology that favors commodities in backwardation — where near-term futures are priced above longer-dated contracts — which is designed to reduce roll costs and improve returns relative to static-weight commodity indices. Shares can only be created or redeemed in blocks of 50,000 through a set of Authorized Participants, while regular investors buy and sell shares on the secondary market.