These four questions are actually the question of 1, that is, who is the opponent. In fact, no one knows who the opponent is.

In the market, there are only two behaviors, namely "buying" and "selling".

In the futures market, "buying" includes "long position opening" and "short position closing"; "Selling" includes "short opening" and "long closing".

If your behavior is "sell" (question 1, 4), the other party's position is definitely "buy" (that is, "long position" and/or "short position").

If it is a "buy" (questions 2 and 3), the opponent's position must be a "sell" ("short" and/or "long").

For example, the question 1: 10 has a short hand,

A, if this 10 lot is the first batch of 10 lots of new contracts/new varieties just listed, then if the position can be opened successfully, it is a long position of 10 lots from others. Of course, it can also be said that the long position of 10 comes from your short position of 10. At this time, the "Masukura" on the market software shows 20 pairs.

B. If this 10 is a short (sell) or main contract, then the opponent has a long or/and a short 10 hand (buy).

B 1。 If all 10 hands are from long positions, it is the same as A. ..

B2。 If 10 all come from short positions, then "Masukura" means that 0 changes hands (short positions change hands).

B3。 If 7 hands of 10 come from long positions and 3 hands come from short positions, "Masukura" is 14.

B4。 If 3 hands of 10 come from long positions and 7 hands come from short positions, "Masukura" is-14.

C. If a non-main contract with very few transactions is selected for 10 hand, it is likely that 10 hand cannot make a transaction because there is no opponent. You can look at the current fuel contract.

Questions 2, 3 and 4 and so on.