1. Reduce the cost of futures trading. Futures can be leveraged, and investors can make large investments only by paying a certain percentage of margin;

2. Ensure the performance of futures contracts, if there is no margin system, it will increase losses;

3. Control market risks. When the futures market is active, the margin system can not only control the trading scale, but also control extreme risks; When the futures market is depressed, the margin can be reduced and the activity of the futures market can be increased.

Tips: The above instructions are for reference only and do not make any suggestions. There are risks in entering the market, so investment needs to be cautious. Before you make any investment, you should make sure that you fully understand the nature of the investment and the risks involved, and then judge whether to participate after detailed understanding and careful evaluation.