1.   Chicago corn and soybean futures also tumbled.

2.   Chicago futures tumbled with U.S. stocks, bonds and the dollar amid expectations company earnings may lag this quarter.

3.   Copper futures tumbled to an eight-month low as rising world production and slowing demand boosts inventories.

4.   Corn and soybean futures tumbled for a sixth day as rain again doused Midwestern farms, raising the chances for a bountiful fall harvest.

5.   Crude oil futures tumbled amid expectations that Iraq could begin exporting oil next week after a two-month halt.

6.   Elsewhere, hog futures tumbled amid expectations that animal supplies are rising at a time of lackluster demand.

7.   Feeder cattle futures tumbled as grain prices surged to a five-month high, lowering profits for feedlots fattening animals for slaughter.

8.   Feeder cattle futures tumbled to a two-month low as strong grain prices force feedlots to reduce the number of young animals they buy.

9.   Gasoline futures tumbled as a drop in U.S. demand fueled an unexpected rise in inventories, which rebounded from their lowest point on record.

10.   Gasoline futures tumbled, dragging crude oil lower, amid expectations U.S. supplies will increase because of a seasonal drop in demand and a boost in production.