“PDBC, meanwhile, uses a more active strategy, which may be attractive to investors who are looking for a fund that attempts to select the most promising commodity futures at any given time,” according to Invesco. Investors can access the asset class in broad fashion with the Invesco DB Commodity Index Tracking Fund (DBC) and the Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC). Evaluating DBC and PDBC Even if inflation disappears tomorrow (probably won't), there's still a near- to medium-term case for either DBC or PDBC because the funds are levered to the global economic reopening.