There are two ways to ask this question. One is to log on to the Changjiang Futures website, click on the trading guide of the customer service center on the home page, and then click on trading tips in the trading guide to see the basic margin table. This form on the official website of Changjiang Futures will be updated automatically on a regular basis. In case of delivery month or special circumstances, please refer to the daily trading reminder in trading tips, and a table will be published every day to list the margin ratio of relevant futures trading varieties on that day. The other is to log in to the customer trading interface of the Yangtze River futures trading software Bloomberg Game Master (Jin Shida), click 6 to view the contract, click the query rate, select a specific trading product, and click the query rate to see the specific margin ratio of the product on that day. After investors know how to inquire about the margin ratio of futures, they usually have another question, that is, what is the difference between the margin ratio and the margin ratio of exchanges? Why do futures companies charge more than a certain margin? To understand this problem, we must first understand two concepts, namely settlement margin and trading margin. Settlement margin, which is actually explained in detail in Baidu Encyclopedia, refers to the funds paid by member units to the exchange in accordance with fixed standards and prepared in advance for transaction settlement, and the transaction margin is the actual deposit paid by member units or customers for holding futures contracts in futures trading; In the process of holding positions, traders will have floating profits and losses (the difference between settlement price and transaction price) due to the constant changes of market conditions, so the funds actually available in the margin account can be increased or decreased at any time. Floating profit will increase the balance of margin account, while floating loss will decrease the balance of margin account. Due to the existence of such trading risks, in order to prevent futures customers from opening positions when the market fluctuates greatly, futures companies will generally increase the settlement margin by about 3 points under the settlement reserve ratio of the exchange, mainly to reduce the risks borne by futures companies. Because the exchange does not settle accounts for individual customers, it mainly settles accounts with futures companies. Therefore, in order to prevent the risk of additional margin required by the exchange, futures companies generally increase the proportion of settlement margin as customer trading margin.