Margin system is one of the bases to ensure market security. It is in the interest of all participants to provide a safe and well-funded trading place for futures contracts. All buyers and sellers must be in deposits received to enter the futures market. Deposit is a performance bond, which proves the sincerity of the buyer or seller, helps to prevent breach of contract and ensure the integrity of the contract. The deposit can be cash, treasury bills allowed by the exchange, standard warehouse receipts, etc. Every customer must pay a certain amount of trading margin to the futures brokerage company, and the brokerage company will deposit the customer's margin into a special account, which is different from the company's own funds. Then, the brokerage company deposits the deposit in the exchange. The margin required for buying and selling futures contracts varies, but it usually accounts for only a small proportion of the contract value, generally between 5%- 15% of the contract value. The amount of margin is stipulated in the futures contract. Generally speaking, the greater the price fluctuation of futures contracts, the more margin is needed. As a part of the margin system, all members' accounts are priced at market value at the end of the trading day. According to the number of positions held in the account and the settlement price of futures contracts, the Exchange calculates the margin that members should pay. If the deposit is below the specified level, the member will receive a notice of deposit recovery, requesting to replenish the deposit in the account within the specified time. Example of settlement:? Date settlement price The counterparty account of your account sells 10 soybean futures contract at 2 188 yuan/ton on the first day, buys 10 soybean futures contract at 65438 yuan +065438 yuan +00 yuan on the second day, and buys1650 yuan/ton on the second day. Need to recover: 1200 yuan (loss) +60 yuan (margin change) deposit 1 1000 yuan, which can be repaid: 1200 yuan (profit) -60 yuan (margin change) on the third day 2 170 yuan/ton deposit 6544. Reimbursable: 3000 yuan (profit)+150 yuan (change of deposit), deposit 10850 yuan, to be recovered: 3000 yuan (loss)-1565438 yuan (change of deposit), the fourth day, 2/kloc-0. Payable: 1.900 yuan (profit) +95 yuan (margin change) margin 1.0755 yuan, to be recovered: 1.900 yuan (loss) -95 yuan (margin change) Note: the margin of soybean futures contract is 5% of the contract value. If you think it is appropriate to buy and close the position at the price of 2 1, 5 1 yuan/ton, you can issue a closing order and make a profit. Please note that suppose the other party holds the futures contract for the same time as you. In fact, the other party may have changed hands many times, or will hold it for a longer time. What is said here is the general procedure of futures settlement. The settlement bill you get is definitely different from the above, but the settlement principle is the same. ?