This week provided a very good demonstration of how quickly attitudes and prices can change. The soybean rally continued to gain strength and set new highs, and corn even finally started to break out of the trading range it has occupied since the 2015 harvest was completed.Just last Monday, the vastly different positions that speculative funds had in commodity markets were discussed here. After holding big short positions in corn and wheat futures markets, they reversed to long positions in the soybean market two weeks ago. The lack of any fundamental trigger to force the funds to start to cover those shorts was also a topic in that day’s report. Planting progress was starting to accelerate across the Corn Belt, and it was too early to be c...