URBANA, Ill. - Soybean prices moved lower last week despite the positive outlook in the USDA's May WASDE report. The report, released on May 9, projected that stocks of U.S. soybeans at the end of the current marketing year would total 530 million bushels, slightly less than generally expected. University of Illinois agricultural economist Todd Hubbs explains that the recent choppy price pattern reflects uncertainty in trade negotiations, the large Brazilian soybean crop, and weakening South American currencies.