1. Party A and Party B sign a selling contract, which is equivalent to Party A's short selling, and the selling price is 100 yuan/hand.
2. After1month, the price drops to 80, so Party A only needs to perform the contract and sell the soybeans to Party B. This is equivalent to buying them in the market at the price of 80 yuan and then selling them to Party B at the price of 100 yuan.
Now answer your question:
1. Party A needs to buy 1 soybean contract in the secondary open market or 1 market at the price of 80 yuan per hand.
2. As Party A and Party B have signed a standard transaction contract, Party A needs to fulfill the contract purchased in the open market and sell the soybeans to Party B. After that, Party A has no contract. Of course, Party A can also sell the purchase contract to Party B, which is actually the same as physical delivery.
3. Party A's capital flow is to purchase and pay 80 yuan, and to sell and collect 100 yuan. The capital flow of Party B is to pay 100 yuan for purchase.
Finally, in fact, locking positions and closing positions are the same thing. Personally, I don't recommend locking the warehouse. It's meaningless.