BCIM is a passively managed, collateralized commodity investment. The fund generally tracks an index of four industrial metals futures (copper, aluminum, zinc, and nickel)combined with collaterals in an attempt to enhance returns. The underlying index includes futures contracts with maturities of 1 to 3 months, rolled according to a fixed schedule. At each annual rebalancing, these futures positions are weighted by liquidity and production data, subject to diversification rules. The fund manages its commodity exposure through a wholly owned Cayman Islands subsidiarya common structure in the commodity ETF space. On another note, its cash collaterals are invested mainly in 3-month US Treasuries whose returns are calculated using the most recent weekly auction high rate. BCIM comes on the back of BCI and BCD, and rounds out abrdn K-1 Free ETF trust.