You complicate the simple problem. Just consider the direction of the transaction, that is, buy and sell, and then the buying and selling price is appropriate, regardless of whether to conclude or transfer.

Signing and transferring refer to opening and closing positions respectively, so both of them have dual trading directions, which can refer to buying or selling.

If you must think so, the answer is no, buying is long-term buying and opening positions, and the direction is buying; Buying and turning is short-selling and closing, and the direction is also buying. The direction of both transactions is buying, not closing.

According to your idea, the possible transactions are as follows:

Purchase conclusion and sales conclusion

Buy and sell transfer

Purchase, transfer and sale

Buy transfer and sell transfer