Today, someone in the community asked me that if the contract makes money, it will be fine if you move up and set a stop loss. I can only say that this is the case with a 90% chance. There is also a 10% chance that the exchange will crash, and the price of Bitcoin will plummet, which will force you to close the account. I have been playing with coins for so many years and have encountered this three times. I lost more than 30,000 U in total. It is not recommended to use large funds to enter contracts at night. Be careful, it will be cleared out for you.