Corn and soybean futures retreated as traders repositioned ahead of the U.S. Department of Agriculture’s September World Agricultural Supply and Demand Estimates report, scheduled for Friday, Sept. 11. Corn fell below $5.10 per bushel after reaching $5.21 on Sept. 1, its highest level in more than three years, while soybeans eased to $12.90 after reaching $13.10, their highest level since December 2023. Markets are focused on potential revisions to U.S. corn and soybean yields, production and ending stocks. StoneX lowered its average 2026 U.S. corn-yield estimate to 182.9 bushels per acre from 184.8, while soybean crop conditions held at 58% good to excellent, above expectations. Chinese soybean purchases, stronger oil prices and concerns about Black Sea supply disruptions provided support. USDA’s August report reduced old-crop corn carryout by 75 million bushels and soybean stocks by 5 million bushels.