The net capital flow of the day is: the number of hands in the external market MINUS the number of hands in the internal market, multiplied by the transaction price of the day to get the net capital flow of the day. When the outer disk is larger than the inner disk, it is a net inflow of funds, and vice versa. Of course, different software has different algorithms. The so-called "never leave the market", the basic principle is to distinguish the outer disk and the inner disk for calculation according to the transaction situation of market return.

The more correct calculation method is: when the closing price of the calculation object in one minute is higher than the closing price in the previous minute, the transaction volume is recorded as positive inflow, otherwise it is negative inflow, and the statistical value of all-day capital flow is that the minute inflow is worth accumulating all day.

First, observe the hot spots of capital flow in turnover: the top 20-30 stocks in daily turnover are the hot spots of capital flow. What needs to be observed is whether the stock has occupied the trading list for a long time and whether it is concentrated in certain sectors.

Second, observe the fluctuation of capital flow: there are big funds and idle funds. Large funds are good at exploring investment varieties with rising space, while the concentration of idle funds often shows the improvement of the market.