1, different themes. The subject matter of Shanghai-Shenzhen 300 stock index futures is Shanghai-Shenzhen 300 index (representing the overall stock trend of Shanghai-Shenzhen stock market), the subject matter of Shanghai-Shenzhen 50 stock index futures is Shanghai-Shenzhen 50 index (representing the heavyweights), and the subject matter of CSI 500 stock index futures is CSI 500 index (representing the constituent stocks).
2. The contract multipliers are different. The futures multiplier of Shanghai and Shenzhen 300 and Shanghai 50 stock indexes is 300, and the futures multiplier of CSI 500 stock indexes is 200.
3. The time to market is different. Shanghai and Shenzhen 300 stock index futures were listed on April 10, while CSI 500 and SSE 50 stock index futures were listed on April 15.