1. The investment target is the national economy, not the performance of listed companies;
2, is a bilateral trade, can buy up or sell down, which can avoid the restrictions;
3, can carry out margin trading, low investment cost;
4, the volume is large, not easy to be controlled by large customers;
5. T+O transaction;
6, can grasp the loss range (set stop loss), will not incur greater losses because there is no buyer or seller to undertake;
7, 24 hours trading, sales can be carried out at any time;
8. High interest rate (stocks only pay out four times a year at most, while investors can enjoy interest every day if they hold high-interest contracts).