It is hard to put a finger on what sponsored the stronger grain and soy markets. The rally was not widespread across other commodity markets. Last week's export sales were hardly impressive enough to prompt higher futures prices. General Comments The overnight session produced modest price changes and mixed results with soybeans trading higher but corn and wheat a bit lower. Volume may have been better than yesterday, although it was far from heavy. The overnight results did not prepare traders for another stout rally day that produced good gains across the entire grain and soy markets. The exception was soyoil, which fell 20 points but still remains near its 2015 highs.It is hard to put a finger on what sponsored the stronger grain and s...