Is it time to short the Corn Market??? CORN FUTURES (CONTINUOUS: CURRENT CONTRACT IN FRONT) CBOT:ZC1! RickVBlack CBOT:ZC1! In recent times most commodities have been heavily inflated. So when is it time to short these things on a macro scale? Well, if seasonality tells us anything, typically corn prices start to fall once we enter the month of June. There are 2 areas of supply on this chart, 1 of which we are already sitting in while the other is sitting at 627-680.