A volatile week finished with a retreat in the soy complex, driven by rumors of China forcing a fund out of a long position on the Dalian exchange and farmer selling in Brazil, that led corn and wheat lower today. General Comments Markets were mixed overnight with soybeans again stronger and wheat and corn steady to lower. That pattern changed quickly this morning when the soy complex went from trading higher to trading sharply lower. Corn and wheat need a strong soy complex to hold their own these days and when the soy complex broke lower, corn and wheat concurrently lost more ground. There was a rumor the Chinese government might have forced a fund to exit its long positions in the Dalian market because they had exceeded their position...