Hello, the margin rate of CSI 500 stock index futures exchange is 30%, and the first-hand margin needs 350 thousand; The margin rate of Shanghai and Shenzhen 300 stock index futures exchanges is 20%, and the first-hand margin needs 320,000; The margin rate of SSE 50 stock index futures exchange is 20%, and the first-hand margin needs 654.38+0.5 million.