Current grain and soy futures markets remind us of two old market clichés. The first is, “bears make money, bulls make money, but hogs get slaughtered.” The second is, “you never go broke taking a profit.” It appears that some fund managers may have forgotten or ignored both sayings. They have stubbornly held on to long positions in corn futures despite the considerable fundamental and technical signs during the past few weeks that it was time to exit those positions. To be fair, there has been a fair amount of fund liquidation in recent days. At yesterday’s close, though, funds were still estimated to be long at least 100,000 contracts with aggregated losses that are still growing. We can be rightfully...