The concept of position difference is also used in electronic spot trading. The calculation method is: the current position minus the difference between the reference position and the general position refers to the difference between the current position and the position of the previous trading day. A positive value indicates that there are more positions and transactions in the last trading day, which can be analyzed as new positions and increases, and vice versa. Simply put, yesterday's position was 100 lots, and today's position is 90 lots, so the position difference is-10.
We should also note that warehouse differences are also positive and negative:
1, warehouse difference is zero.
In other words, one of the buyers and sellers already exists, so it is zero. If an investor has opened more than one order before 12, and when the soybean price rises to 13, he wants to hedge more than one order, and he chooses to close his position. He is optimistic about the future trend and wants to open more than one order, so today's position difference remains unchanged, zero.
2. The warehouse variance is negative.
Simply put, both buyers and sellers exist in the past, and it is negative if both sides close their positions at the same time. If the soybean is in 12, an investor has more orders in one hand and an empty order in the other. At this time, the soybean has risen to 13, the first investor wants to close the position with more orders, and the second wants to close the position with empty orders, so the position difference at this time is negative.
Spot warehouse difference refers to the difference between the spot inventory of a futures product on a certain trading day and the spot inventory on the previous trading day. Simply put, it is the difference between the spot inventory of the day and the spot inventory of the previous day.
Spot warehouse difference is an important indicator of the futures market, which reflects the expectations of market participants on the future market supply and demand relationship. If the spot inventory decreases, it shows that the market has high expectations for future supply, which may lead to an increase in futures prices. Therefore, the change of spot warehouse difference can be used as an important reference index to help investors make investment decisions.