The reasonable setting of margin system is to make sure index futures transaction in efficient and safe operation.
保证金制度的合理设定是确保股指期货交易高效和安全进行的保证。
The futures brokerage firms, which assume the main futures transaction risks, are in the important chain of risk control system.
而期货经纪公司作为风险的主要承担者，在风险控制体系中处于重要地位。
应用推荐