| Commodity ETFs have piqued the interest of many investors, especially after a prolonged drop in prices. While some detailed academic research has highlighted the potential benefits, the live track records have generally been disappointing.
Below are five charts that illustrate the significant impact — both good and bad — that an allocation to commodities can have on a portfolio. The following chart shows the performance for the PowerShares DB Commodity ETF (DBC) since its launch in 2006. Though DBC had doubled at one point, it has now lost more than one-third of its value since formation...............................................Full Article: Source
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