Look at this latest chart from Bloomberg.com, CRB (green line) has reached -40 a few days ago and if the current down does not go below -40, most likely -40 is the current bottom, commodities should move up from here to just below 0 for a 50% rebound over the next 8 to 12 months. If commodities can move up, it means economy has reach a temporary bottom(or ultimate bottom ?), it also means stock should be moving up.