PowerShares DB Agriculture Fund(DBA) Investors looking to benefit from surging food prices could consider DBA that invests in widely traded agricultural commodities through futures. Click to get this free report >> PWRSH-DB AGRIC (DBA): ETF Research Reports GRNHVN-CONT CMD (GCC): ETF Research Reports US-COMMODITY IF (USCI): ETF Research Reports To read this article on Zacks.com click here. Underperformance in the last couple of years, mainly due to increased output and economic slowdown in emerging markets, left investors wondering whether the commodities "super-cycle" was dead.