CBOT wheat and soybean futures closed lower on Friday as investors sold to lock in profits after prices had rallied strongly earlier on geopolitical concerns and extreme heat, while corn futures ended flat. September wheat fell 18.25 cents, or 2.62 percent, to settle at 6.7800 dollars per bushel. November soybeans dropped 9.75 cents, or 0.77 percent, to close at 12.5350 dollars per bushel. December corn was unchanged at 4.8750 dollars per bushel. Analysts at Hightower Report noted the market was overbought and approaching month-end, triggering profit-taking, but the overall trend for grain prices remains upward. Soybean futures also drew intraday support from news that China had purchased a large lot of US soybeans following high-level meetings the previous week, raising hopes that China will import soybeans under the 25 million metric ton agreement. Meanwhile, a Wheat Quality Council survey found that wheat yields in the US Plains were 48 bushels per acre, slightly down from 48.3 bushels per acre in 2025, which was lower than expected.