The data of external market and internal market are cumulative, that is, from opening to closing. This data is used to compare the strength of buyers and sellers throughout the day, but the commission ratio is dynamic. This second is different from the next one, and it is used to see the instantaneous strength comparison between the two sides. It may be negative now, but it will be positive in three seconds, so a negative commission ratio does not mean that the external market cannot be greater than the internal market. Similarly, the commission ratio is.

Especially after the market closes, all the data stops beating, and you can see it clearly. At that time, the commission ratio refers to the data at the moment before the market closes, while the data on the outer disk and the inner disk are the accumulation of all data from the opening to the closing.