The energy sector seems to have all the momentum in a stock market that's been feeling downward pressure from inflationary fears, which is evident in the Invesco DB Energy Fund (DBE), which is up almost 60% for the year. DBE seeks to track the DBIQ Optimum Yield Energy Index Excess Return, which is intended to reflect the changes in market value of the energy sector. "Commodity exposure in a portfolio used to be a binary choice, either one invested in them, or they did not," an ETF Database analysis says.