The CBOT and U.S. equity markets switched roles today with ag commodities generally finding solid gains while stocks retreated from recent highs. Market chatter that the U.S. is increasingly more competitive for corn and wheat exports was the biggest catalyst for today’s rally. With the U.S. dollar remaining off its highs set a few months ago and lower FOB NOLA offers, there is a good chance that Thursday’s Export Sales report could bring positive signs for corn and wheat shipments. Indeed, USDA this morning announced the sale of 191,000 MT of 2019/20 corn to unknown destinations.  Canada’s biggest rail line is shut down today from a strike that has been joined by over 3,000 Canadian National Rail workers. The union...