U.S. corn stocks heading into the new marketing year were substantially higher than a year ago, according to the latest USDA Grain Stocks report. Old-crop corn stored on farms and at commercial facilities totaled 2.10 billion bushels as of September 1, up 35 percent from a year earlier. USDA says 787 million bushels were stored on farms, a 22 percent increase from last September, while off-farm stocks totaled 1.31 billion bushels, up 44 percent. Corn disappearance from June through August totaled 3.20 billion bushels, compared with 3.09 billion during the same period in 2025. Soybean stocks were down three percent from a year earlier, while all-wheat stocks fell 14 percent to 1.85 billion bushels. USDA also revised its 2025 production estimates slightly, reducing corn production by less than one percent and soybean production by a small amount. The report comes as harvest gets underway, with larger old-crop corn supplies adding another factor for farmers watching prices this fall.