The risk control rules of Shanghai Stock Exchange change according to risks. At present, the suspension of trading on the Shanghai Stock Exchange is 5%, 7% and 9%, which means that the usual ups and downs are 5%, the second suspension in the same direction (daily limit and daily limit) is 7%, and the third suspension is 9%. After three suspensions, the market will be closed for one day.
The futures exchange implements the price limit system, and the exchange sets the daily maximum price fluctuation range of each futures contract. When a futures contract is closed at the price of the price limit, the principles of closing priority and time priority are implemented, but the principle of closing priority does not apply to new positions opened on the same day.
Extended data:
Futures trading must be conducted in a futures exchange. The futures exchange implements the membership system, and only members can enter the market for trading. Those off-site customers can only entrust trading agents, that is, futures brokerage companies to participate in futures trading. Therefore, the futures market is a highly organized market, and strict management system is implemented, and futures trading is finally completed in the futures exchange.
Futures trading implements margin system, that is to say, traders only need to pay a small amount of margin, which is generally 5%- 10% of the contract value, and can complete several times or even dozens of times of contract transactions. This feature of futures trading attracts a large number of speculators to participate in futures trading.
One of the characteristics of futures trading is that it can make a big investment with little money, which is vividly called "leverage mechanism". The leverage mechanism of futures trading makes futures trading have the characteristics of high returns and high risks.
Baidu encyclopedia-futures trading