CHICAGO, Illinois (Agriculture.com)--The pre-opening prices for the CME Group grain commodities for Wednesday, August 11, 2010 are mostly lower. The early calls for corn are 1-2 cents lower, soybeans down 3-4 cents and wheat up 1-2 cents.

In overnight electronic trading, the Dec. corn futures contract traded 1/4 of a cent lower at $4.08 3/4 per bushel. The Nov. soybean futures contract traded 3 3/4 cents lower at $10.18 1/4 per bushel. The Sep. wheat futures contract traded 2 cents higher at $6.96 3/4. For Dec. soymeal futures, the contract traded $1.50 per short ton lower at $288.30, and Dec. soyoil down 0.03 point at $42.20.

The outside markets are not supportive for Wednesday's grain trade. The real factor driving the lower early calls are the lower overnight markets.