The decisive factor of stock index fluctuation is the price trend of specific stock varieties that are publicly traded on the stock exchange and constitute the index. Although ordinary investors can't participate in stock index futures trading, the Shanghai and Shenzhen 300 Index, as the subject matter of stock index futures launched by CICC at present, is mutually influential. The constituent stocks of the Shanghai and Shenzhen 300 Index are related to the broader market index. Therefore, if ordinary investors want to operate better, they need to know the trend of stock index futures, especially the trend of Shanghai and Shenzhen 300 Index and its constituent stocks. Thank you for your interest in telecom products. I wish you a happy life. If the above information can't solve your problem, you can also log in to Guangdong Telecom Mobile Mall () to seek help from online customer service, which is available 7X24 hours a day!