Under normal circumstances, the contract with the largest position has the largest turnover. Because it is the most active contract in the market and the easiest contract to clinch, speculators are basically participating in this contract.

The difference between futures and stocks is that the life cycle of futures contracts is limited and will not be delivered until after the last trading day of the contracts. The so-called main contract refers to the contract with the largest position.

The main contract of commodity futures is only produced in three contracts: 65438+ 10/May/September. For example, 140 1, 1405, 1409 will be used as the main contract in turn over time. Stock index futures is the main contract of the month.