What is the difference between spot and position of stock index futures?
The current number of lots is the number of lots that have just been closed, and the position difference is the difference between the current position and the position that was closed yesterday. The trading volume and positions of stock index futures are calculated according to unilateral transactions, which is different from that of commodity futures according to bilateral transactions. Therefore, the single digits of futures trading volume and positions can be odd, but the futures trading volume and positions of commodities can only be even.