Is to open a position. There are two kinds of opening positions: buying and selling.

Close position: as long as you close the original order, whether you are long or short, it is closed position.

There are two forms of liquidation: buying liquidation and selling liquidation.

Specific operation: 1, bullish

Buy and open a position-wait until the price reaches a certain target-sell and close the position.

2. bearish:

Sell and open a position-wait for the price to reach a certain target-buy and close the position.

Operation 1 Like stocks, operation 2 is a short-selling mechanism, that is, you can do it if you think the price is going to fall.

Do not buy until the price really drops to a certain level, as long as you do it before the contract expires.

You can earn the difference by hedging the same amount in the opposite direction.