CBOT markets opened on the defensive after tensions between the U.S. and Iran continued to rise over the weekend. Dow futures opened 150 points lower for Monday’s trading and CBOT markets followed a mild risk-off mentality early as well. By mid-day, however, a different tone developed in Chicago markets with the dominant theme being that of sell corn/buy soybeans. Spread trading was active as funds and traders position for the January WASDE that is coming on Friday. The theme of 2019 was bearish surprises for corn, and traders seem to be bracing for more of the same in the January report. By some estimates, corn yields below 164 BPA are needed to create a truly bullish scenario. That, however, seems highly unlikely given USDA’s...