CBOT大豆期货转跌，美国农业部（USDA）数据显示美国库存扩大。

Core Viewpoint - CBOT soybean futures have turned lower due to the USDA data indicating an increase in U.S. inventories [1] Group 1: Market Impact - The USDA report shows a rise in U.S. soybean stocks, which has negatively affected market sentiment and led to a decline in futures prices [1]