1229 ET - CBOT corn futures are down 1.4% midday, leading row crop futures lower as fund traders are seen closing long positions that they hold in corn. Last Friday's Commitment of Traders report from the CFTC showed a net long position among managed money traders that's almost 415,000 contracts. This week's update may show sizable selling among these traders. "[Corn is] down on more long liquidation, a touch of harvest pressure, and forecasts for perfect harvest weather starting next week to last for two weeks," says Charlie Sernatinger of Marex in a note. Soybeans slide 0.6%, and wheat is down 0.2%.