What's the difference between one bean, three bean, one bean 1 105 and one bean 1 109 in futures?

Dalian commodity exchange soybean 1 futures contract, referred to as bean 1, code a.

Bean continuous- is the trend of connecting the current delivery monthly contract.

Beans rose three times in a row-the trend of the three contracts was connected backwards from the current delivery month.

Douyi1105-2011contract that expires in May.

Douyi1109-2011contract that expires in September.

In market research, the expiration of futures contracts will affect market analysis. People usually relate the market trends of some contracts to get a continuous market trend for easy analysis.

General trading is to look at the main contract, that is, the contract with the largest position.

Long-term judgment generally depends on the continuous market of the main contract.

At present, there are 9 soybean contracts traded, namely:

A 1509，A 15 1 1，A 1603，A 1605，A 1607，A 1609，A 16 1 1，a 17438

The delivery month is 1, 3, 5, 7, 9, 1 1, and the delivery date is the fourth trading day of the delivery month for physical delivery.

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