U.S. trading offices were likely only half-staffed today and possibly less than that. It is always tempting to expand a Thursday holiday into a Wednesday-Sunday affair, especially when grain markets are doing little of significance. That certainly describes their performance of late, and the result has been very light trading volume. Of course, that means it is easier to push prices around. The negative side of the soybean futures range occurred mostly during the overnight session in response to a statement from the U.S. Trade Representative (USTR) that China had not altered its unfair trading practices – hardly a surprise since those are the reason for the current trade dispute. Meanwhile, grain futures prices did not stray far from...