The mainland stock market implements the t+ 1 rule. Simply put, you can't sell what you bought that day, and you can't do circular trading that day. If you buy a daily limit, you can't sell it that day. If you held it before, you can sell it.
When a futures contract has a buy (sell) declaration with a stop-loss price, a sell (buy) declaration without a stop-loss price, or a deal is made as soon as a sell (buy) declaration is made, but no stop-loss price is set, that is, it is not enough to quote unilaterally or to quote unilaterally.
Extended data:
Precautions:
Trading hours: there is no night market on Friday night of natural day; Secondly, the unfinished orders related to the entrustment are considered valid within one trading day, that is, from 9: 00 pm to 3: 30 pm on the second natural day.
Execution of forced liquidation: At present, it is calculated according to the ratio of 12%, and the daily settlement price shall prevail. Before the compulsory liquidation, when the margin is lower than 15%, the system will automatically send a short message to the customer to inform the customer to add the margin. If the customer says that he can't add the deposit in time, he will continue to lose money. When the margin is lower than 12%, he will lose money.
Calculation of daily rise and fall: the settlement price of the previous trading day is the base, not the closing price, just like futures. The method of price settlement is: settlement price = (price 1* number of transactions+price 2* number of transactions+…+price n* number of transactions)/total number of transactions.
Baidu encyclopedia-Baiyin T+D
Baidu encyclopedia-daily limit board