Generally speaking, it is the amount of funds used by A shares when the main force buys stocks. If we know this data, it will be of great reference value to our investment. But this kind of information is hard to get, even if you know it, it will only be immediate, because others' subsequent operations will lead to changes in costs. Here is a simple method to calculate the main cost, but there are preconditions. First, stocks must be fund heavyweights, and second, they must be calculated in strict accordance with the quarter. Because the fund will release reports every quarter, it is generally planned and operated according to the quarter. For example, if the time interval of Guodian Nanrui is 7. 1 to 9.30, we can use a small function called regional statistics in our own software to calculate the average stock price during this period, which is basically equivalent to the cost position of the fund this quarter.

If you want to refer to the non-quarterly fund position cost, you can only look at it. The accuracy is not high, that is, the 60-day moving average, which is basically equal to the fund position cost position. The longer the time, the more accurate it is. Because the fund operates on a quarterly basis, a quarter is three months, which is about 60 trading days, then the 60-day moving average is a more reliable calculation method.

Of course, all the above are limited to the fund's heavy stocks, and the rest are difficult to figure out.