DBC follows the DBIQ Optimum Yield Diversified Commodity Index and is usually comprised of 14 actively traded commodities futures contracts, while PDBC is an active fund that attempts to top DBC's underlying index. Historically, investors turn to commodities to protect portfolios from inflation, putting a spotlight on 2021 opportunities with the Invesco DB Commodity Index Tracking Fund (DBC) and the Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF (PDBC). As a result, investors may want to consider having exposure to oil via DBC or PDBC,” adds Invesco.