The most liquid commodities have been sold, which suggests to me that this is speculative profit-taking or other traders liquidating losing long positions that they placed at overbought price levels. I consider this to be a very good opportunity to buy into the dips if this correction is short-lived. If, however, the sell-off continues over several days, this could be a correction in commodities prices that may be needed and healthy. Could this be a pin prick in what some are calling a commodities bubble? Only time will tell!
DBC ETF (Powershares Liquid Commodity Index)

Crude Oil

Gold
Cocoa
Sugar