1, 090 1, fighting a main contract, fighting a continuous k-line chart is far from it. Why? Other goods don't seem to be like this.

The main contract of Douyi is generally in 1, May and September, and it is not active in other months. Douyi is not a continuous single contract, but is displayed by linking the contracts of each expiration (delivery) month (some contracts are active and some contracts are inactive), so it is different from 090 1 contract.

2.Douyi 090 1 There was no transaction price for a period of June-July 2007. Why?

Bean-1 contract is listed and traded once or twice. The predecessor of 090 1 contract was 070 1 contract. After delivery due in 2007 1 month, it stopped for 6 months and went public in July 2007. Then 070 1 contract k-line chart shows.

Therefore, Douyi 090 1 had no transaction price for a period of time from June to July 2007.

All contracts (except one soybean and one third soybean) have this six-month vacancy in the market.