ZCU18-ZCZ18 has started its seasonality in March (precisely March, 14) and will end on August, 4. Spread that now is back interesting for open a short position for several reasons. Not only the seasonality (20 winning years in last 20), the Relative Strenght Index is in strong overbought and there is a "fundamental" consideration.
The September delivery future will increase its value more when corn is harvested compared to the December contract. In practice, there will be an expansion of the contango. The price of the corn (but not only) is always higher before the harvest. Then it arrives on the market and increases the offer, and if there is not also an increase in demand, the price will start to fall (as the seasonal patterns suggest) and it is for this reason that I sell the corn in hedging between May and June.
The September delivery future will increase its value more when corn is harvested compared to the December contract. In practice, there will be an expansion of the contango. The price of the corn (but not only) is always higher before the harvest. Then it arrives on the market and increases the offer, and if there is not also an increase in demand, the price will start to fall (as the seasonal patterns suggest) and it is for this reason that I sell the corn in hedging between May and June.