The Shanghai and Shenzhen 300 Index is a financial index jointly issued by the Shanghai and Shenzhen Stock Exchanges on April 8, 2005, which reflects the compilation goal and operation status of the Shanghai and Shenzhen 300 Index, and can be used as an evaluation standard of investment performance, providing basic conditions for indexed investment and innovation of index derivatives.
Extended data:
The Shanghai and Shenzhen 300 Index is based on 65438+February 3, 20041,and the benchmark date is 1000 points. The Shanghai and Shenzhen 300 Index is a sample of 300 A shares selected from the Shanghai and Shenzhen stock markets, including Shanghai 179 and Shenzhen 1.
Sample selection criteria are large-scale and liquid stocks. The sample of the Shanghai and Shenzhen 300 Index covers about 60% of the market value of the Shanghai and Shenzhen markets, which has a good market representation.
The Shanghai and Shenzhen 300 Index takes scale and liquidity as two basic criteria for sample selection, which gives greater weight to liquidity, in line with the characteristics of the index positioning as a transactional index. After the listed companies are sorted, they are selected and detailed selection conditions are stipulated. For example, listed new shares (except a few large-cap stocks) will not enter the index soon. Generally speaking, stocks listed for one quarter are likely to be selected as sample stocks of the index.
Exclude stocks suspended from listing, ST stocks, stocks with abnormal operating conditions or serious losses, and stocks with large stock price fluctuations that obviously manipulate market performance. Therefore, the 300 index reflects the comprehensive changes of the stock prices of representative stocks with strong liquidity and large scale, which can provide investors with authoritative investment direction, facilitate investors to track and combine, and ensure the stability, representativeness and operability of the index.
References:
Baidu Encyclopedia-Shanghai and Shenzhen 300 Index