First of all, it depends on what your trading method is. Futures are all matchmaking transactions, just like buying and selling things. The price you quoted must match your home before you can close the deal! Moreover, the market fluctuates too fast, and the price you quoted is too late to respond, so it will pass, and naturally you can't make a deal! When doing it, it is best to choose a contract with a large number of main players, so that the transaction can be completed quickly and the transaction can be completed at the price you expect to the greatest extent. If the transaction can't be completed as expected, it's more or less normal, just understand what's going on!