2. There are several stock index futures exchanges in the United States, and the rules of different exchanges are different, including trading time, leverage, variety and delivery time. Most futures are traded 24 hours a day, which is not easy to be manipulated and the contracts are more diversified. However, many varieties have no price limit, so the risk is high. It is relatively difficult for domestic investors to exchange foreign exchange in US dollars.
3. However, the futures trading volume is large and the information is transparent. Occasionally, there is big money to do business. The transaction is basically fair, the policy is stable, and it will not change after the rules are formulated, while domestic exchanges often adjust the handling fees and change the futures trading rules.