Then futures is a commercial transaction. If someone buys it, someone must sell it, right? Therefore, the purchase amount and sales amount of the transaction must be equal.
That is, buy and open positions (long positions)+buy and close positions (short positions) = sell and open positions (short positions)+sell and close positions (short positions)
Then there is why it is more open. The buying quantity must be equal to the selling quantity before the transaction can be concluded, but if it is equal, why should it be displayed?
Because the opening amount is not necessarily equal to the closing amount, and the more the opening amount, the more; Therefore, the number of open spaces is shown as multiple openings. You can imagine that the buying position in the above formula is very small, so small that it is close to zero. What kind of situation is it to ensure that the buying amount is equal to the selling amount?
Buy open position (long position) +0 = sell open position (short position)+sell close position (long position)
This formula must be established, and it is necessary to open it so many times. Open? Because the stimulant is > 0, he will be more open. Similarly:
Buy open position (multi-flat)+buy close position (empty flat) =0+ sell close position (multi-flat) is displayed as multi-flat.
Buy Open Position (multiple orders)+Buy Open Position (blank) = Sell Open Position (blank) +0 is blank.
0+ buy open position (short position) = sell open position (short position)+sell open position (multiple positions) is displayed as short position.
Then it changed hands. Changing hands means closing positions with old bulls and opening positions with new bulls, that is
Buy and open positions (long positions) +0=0+ sell and close positions (long positions)
Short-selling is an old short position closing and a new short position opening, that is to say,
0+ buying and closing (short position) = selling and opening (short position) +0
Finally, it is double-open and double-flat, that is, both sides are open or flat.
Buy open position (multi-open position) +0= sell open position (short position) +0 means double opening.
0+ buy position (flat) =0+ sell position (flat) is flat.
Finally, talk about the +8 lot in your question. First of all, futures is the principle of transaction by poke, price priority and time priority. Whoever has the best price submits the order early, and the transaction is early. Because Party A submitted the order first, the computer will poke Party C's five hands 1 to trade with Party A first, and the remaining four hands will trade with Party B 10/0, which means a total of 10 hands (1+/kloc-)
Pure hands! ! I was also struggling with this problem last month, and then I figured it out myself. Sorry ~ I hope I can help you