The CBOT started the week with some risk-off trade after Russia and Ukraine reached a deal to extend the Black Sea export corridor agreement over the weekend. The two countries are still arguing over the details of the agreement, but the major takeaway was that Ukraine can still ship grain in relative safety. The news sent global wheat futures sharply lower for the day and initially pressured CBOT soybeans and corn futures too. Both those markets, however, rallied back from a weaker start with corn paring losses and soybeans ending the day with small gains. Trouble for the Argentine crops, despite recent rains, continues to support CBOT trade, despite the massive Brazilian crops that will be marketed this year. Amid the volatility in macroe...