Back in April, when we first discussed the hike in daily corn trading limits from $0.30 to $0.40, we had some cynical observations, namely that "inviting not only more vol (read bottom line for the business) but more margin, the CME is exposing speculators to far greater impacts from margin hikes (and drops). Which of course means a far great capacity and ability to kill any commodity rally dead in its tracks." Well, there is no margin hike today (yet), although based on today's action we fully expect one. The reason, we are currently at today's down 40 cent limit, a price of $5.925 a bushel, the lowest since July 1, and by the looks of things it will get far worse: as the chart below demonstrates right now sellers outnumber buyers by a ratio of 2000 to 1. Expect this ratio to get even bigger once the CME hikes corn (and who knows what other commodity) margins as soon as today.