COMT seeks to track the investment results of the S&P GSCI Dynamic Roll (USD) Total Return Index (the Underlying Index ), which measures the performance of futures contract ssuch as aluminum, Brent crude oil, cocoa, coffee, copper, corn, cotton, gasoil, feeder cattle, gold, heating oil, leanhogs, lead, live cattle, natural gas, nickel, silver, soybeans, sugar, unleaded gasoline, wheat, West Texas Intermediate crude oil and zinc. TheUnderlying Index is rebalanced on anannual basis.