The total position of stock index futures is the sum of the positions of four contracts. Bilateral calculation of trading volume means that both orders are counted as trading volume, that is to say, the trading volume of 1 is counted as 2 lots, while the unilateral calculation of trading volume is only counted as one aspect, and the trading volume of 1 is counted as 1 lot.

Suppose I short two futures contracts in Shanghai and Shenzhen 300, so as long as I don't close my position, my position is two; Suppose I buy more hands and short both hands at the same time, then my position is four hands.

How to forecast the futures price?

Volume refers to the number of contracts of a commodity futures in a certain trading time of an exchange. In the domestic futures market, the sum of trading volume is used to calculate trading volume.

Open position, also known as short position or open position, refers to the quantity of a commodity futures contract that has not been hedged and delivered in kind after buying or selling. The buyers and sellers of open contracts are equal, and domestic positions are calculated according to the total number of buyers and sellers.

Changes in trading volume and positions will affect futures prices, and changes in futures prices will also cause changes in trading volume and positions. Therefore, analyzing the changes of the three is conducive to correctly predicting the trend of futures prices. Generally speaking, there are the following rules:

(1) If the price rises:

With the increase of trading volume and positions, the price has the power to continue to rise;

The decrease in trading volume and positions shows that the kinetic energy of price increase is weakening;

The increase in trading volume, but the decrease in positions, indicates that the kinetic energy of price increase is weakening;

(2) If the price falls:

With the increase of trading volume and positions, the price has the power to continue to fall, but if it falls too far, the futures price will rebound strongly.

The decrease in trading volume and positions shows that the kinetic energy of price decline has been exhausted;

The increase in trading volume but the decrease in positions indicate that the possibility of further price decline is decreasing.

From the above analysis, it can be seen that under normal circumstances, if the increase of trading volume and positions is consistent with the direction of price change, the price trend can continue to be maintained for some time; If it is contrary to the price change, the price trend may turn. Of course, this needs to be further analyzed in combination with different price patterns.