The first paragraph of Article 4 of the Measures for the Implementation of the Suitability System for Stock Index Futures Investors (Trial) stipulates that members of futures companies can only apply for opening stock index futures trading codes for natural person investors who meet the following criteria: ① The balance of available funds in the margin account when applying for opening an account is not less than RMB 500,000; ② Have basic knowledge of stock index futures and pass relevant tests; (3) There are records of more than 20 stock index futures simulation transactions for 10 trading days, or there are records of more than 10 commodity futures transactions in the last three years; ④ No serious bad credit record; ⑤ There are no laws, administrative regulations, rules and business rules of the exchange that prohibit or restrict stock index futures trading. Article 5 stipulates that members of futures companies can only apply for opening stock index futures trading codes for general legal person investors who meet the following criteria: ① The net assets are not less than RMB 6,543.8+0,000 yuan; ② When applying for opening an account, the balance of available funds in the margin account shall not be less than 50 yuan RMB; ③ There are corresponding decision-making mechanisms and operational procedures; ④ Relevant business personnel have basic knowledge of stock index futures and passed relevant tests; (5) Having 10 trading days and more than 20 stock index futures simulation trading records; Or there have been more than 10 commodity futures transactions in the last three years; ⑥ No serious bad credit record; There are no laws, administrative regulations, rules and business rules of the exchange to prohibit or restrict the trading of stock index futures.