Meanwhile, grain futures slid, buffeted by expectations for large global ending stock this year. Corn prices brushed off stout export sales numbers, lowering after Brazil's crop agency, Conab, pegged the country's corn crop at 78.3 mil m, or 3.3 mil mt above USDA's recent forecast. This higher estimate comes after the USDA forecast larger-than-expected world supplies of the grain, forcing prices to decline. March corn shed 2 3/4 cents, or 0.7%, to $3.83 a bushel.