The CSI 300 is just an index. Basically, all large fund companies have special index funds, and 5 103 10 comes from E Fund. There are also 300 index funds that can be subscribed by Huaxia Fund, harvest fund Fund, Bosera Fund and Guo Fu Fund.
Each company's index fund is different. Take the E Fund for example. There are two funds tracking the 300 Index, namely, E Fund CSI 300ETF Link (1 10020) and E Fund CSI 300ETF(5 103 10). Other fund companies are similar, and different funds track the same index. Of course, depending on the nature of the fund, it can be purchased in a fund company or a consignment agency, or it can be traded directly on the floor.
For which index fund to choose, you can check the deviation between the historical net value of the relevant fund and the 300 index. The smaller the deviation, the better the tracking effect.
Extended data
The sample selection space of index constituent stocks, the listing and trading time is more than one quarter; Non-ST and *ST stocks, non-suspended stocks; The company is in good operating condition, and there are no major violations of laws and regulations, and there are no major problems in its financial report in the last year; There is no obvious abnormal fluctuation or market manipulation in the stock price; Exclude other stocks identified by experts that cannot enter the index. The sampling standard is to select stocks with large scale and good liquidity as sample stocks.
The sampling method is as follows: firstly, calculate the average daily total market value, average daily circulating market value, average daily circulating shares, average daily turnover amount and average daily turnover shares of the stocks in the sample space in the latest year (since the listing of new shares), then carry out weighted average on the ratio of the above indicators according to 2: 2: 2: 2: 1, and then sort the calculation results from high to low to select the top 300 stocks.
The index is weighted by adjusting the share capital. For example, if the proportion of tradable shares (circulating share capital/total share capital) of a stock is 7% and less than 10%, the circulating share capital will be the weight; The circulation ratio of a stock is 35%, which falls within the range of (30,40), and the corresponding weighting ratio is 40%, so 40% of the total share capital is used as the weight.
In principle, the index constituent stocks are adjusted once every six months, generally in early October and early July of 65438+/kloc-0, and the adjustment plan is announced two weeks in advance. In principle, a stock with the latest financial report loss will not enter the newly selected sample unless this stock affects the representativeness of the index.
The Shanghai and Shenzhen 300 Index is based on 65438+February 3, 20041and the adjusted market value of 300 constituent stocks on that day. Base designated as 1000 point, officially released on April 8, 2005.
The calculation formula is: reporting period index = adjusted market value of constituent stocks in the reporting period/adjusted market value of constituent stocks on the benchmark date × 1000.
Baidu Encyclopedia-Shanghai and Shenzhen 300 Index