CBOT soybeans extended their decline on Monday, with the January contract closing 0.5% lower at 1188.25 cents per bushel, the 10th decline in the past 11 trading sessions and a near three-month low. U.S. soybean harvest is 92% complete, and pressure from the bumper crop entering the market continues to be released; the market widely expects the November USDA report to raise the yield to 53.6 bushels per acre, production to 4.601 billion bushels, and ending stocks to 336 million bushels. Ahead of the report, traders are actively adjusting positions to avoid risk. Brazil's planting progress has reached 64%, faster than the same period last year, and South America's bumper crop expectations are further weighing on deferred contracts.