Invesco DB Commodity Index Tracking Fund (DBC) Investment Type: Commodity Futures Market cap: $4.44 billion Expense Ratio: 0.87% 52-Week Range: $17.55 – $28.75 During times of inflation, commodities offer diversification to one’s portfolio. DBC tracks the DBIQ Optimum Yield Diversified Commodity Index Excess Return. Given the rise in commodity prices, DBC outperformed the broader equity market and delivered an exceptional gain of over 51% in the past year.