CHICAGO, Illinois (Agriculture.com)--The pre-opening prices for the CME Group grain commodities for Friday, July 23, 2010 are mostly lower. The early calls for corn are 1-2 cents higher, soybeans and wheat 1-2 cents lower.

In overnight electronic trading, the Dec. corn futures contract traded 1 1/4 cents lower at $3.91 1/2 per bushel. The Nov. soybean futures contract traded 1 1/2 cents lower at $9.78 per bushel. The Sep. wheat futures contract traded 1 3/4 cents lower at $5.94 3/4. For Dec. soymeal futures, the contract traded $1.10 per short ton higher at $283.40, and Dec. soyoil down 19 points at $39.51.

The outside markets are mildly supportive for Friday's grain trade. The real factor driving the mostly lower early calls is the predominantly lower overnight market.