The CME Group corn, soybean and wheat markets are positioning themselves for a weaker open Friday, due to lower overnight trading. 

The Early Calls for the commodities on Friday, August 3, 2012, are lower. Corn is seen opening 5-7 cents lower, soybeans 5-7 cents lower, and wheat 3-4 cents higher.

In overnight trading, the Sep. corn traded 4 cents lower at $7.90 per bushel, while the Dec. contract traded 5 cents lower at $7.90 3/4.  Nov. soybean futures traded 6 cents lower at $16.10 1/2 per bushel. Sep. wheat futures traded 3 cents higher at $8.68.

The outside markets are favorable for Friday's grain trade. The real factors driving the calls will be the lower overnight markets.

Discuss the corn, soybean and wheat markets in Marketing Talk.