How to avoid default in futures trading, and what if speculators disappear after short selling?
This is easy to handle. When your loss reaches a certain proportion, the futures company requires you to make up the trading (position) margin before the market opens the next day, otherwise you have the right to close your position forcibly according to the contract rules until the balance is enough to meet the margin requirement. This is how to avoid default.
It's the same when you run away When the futures contract is about to expire, the margin ratio will be increased according to laws and regulations. When you can't provide it, you will also forcibly close some of your contracts until you can meet the margin requirements.