Handicap data faithfully and directly records and describes the objective situation of the market from a dynamic perspective. It is original, first-hand information, without deduction. It is the most important fundamental basis for professional traders to judge the operation law of stock price trend, and all other technical indicators are derived from it. Sell 1, sell 2, sell 3 can be seen in the general stock trading software. In many cases, we can see that selling is much bigger than buying 1 buying 2 and buying 3. It gives people a feeling of great selling pressure, but the stock price has been rising. This is because we see that buying 1, buying 2 and buying 3 are all passive bills, and they are just hanging there. And many people take the initiative to pay the bill, that is, the purchase price is at least higher than the price of 1, and we can't see the list of 1 cent. These measures keep eating up the orders on the sell 1, which makes the orders on the subsequent sell 1 keep pushing up the price. So the final transaction price is rising all the way.