A: Yes, if you close your position, there will be surplus funds, and there is no need to add margin.
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2. What is the relationship between liquidation, hedging, hedging liquidation and reverse trading?
A: Closing a position is the reverse operation of the same contract, such as buying and selling.
There is also a method called locking positions, such as buying and selling, which are all open positions, but in the opposite direction.
Personally, this operation is not recommended.