1, the variety of meal is a single-month contract, that is, one year, three, five, seven, nine. Eleven. Single-month contract this six contract month trading data is often interlinked, interdependent, and divided into primary and secondary. In the operation is generally operating the main contract, such as one, five, nine of the three-month contract. However, the movement of other contract months is often reflected through the meal futures index. Therefore, before analyzing the main contract to see the movement of the meal futures index.

2, the meal futures index in this variety of also played a smoothing role, eliminating the other contract month price fluctuations burr. Therefore, analyzing the meal futures index often receive an overall view.