Market makers look at the moving average when trading stocks.

If you set up a wave line in 30 minutes, you can set up more than ten lines, and then set up an 80 line and a 103 line, which are equivalent to the 10 day line and the 13 day line in the daily chart.

Why does the stock price suddenly rise when it falls below the 80 and 103 lines after 30 minutes of leveling or rising? It is because the 10 day moving average is the cost line of the market makers, and the purpose of pushing the stock price below the cost line is to shake off those who are not firm, and then suddenly rising is afraid that everyone will absorb the market makers' chips below the cost moving average. So he didn't dare to stay for a long time.

When you find that the 80 and 103 lines in the 30 minute chart are flat or rising, and the stock price falls to or below the line, you can actively absorb because these two lines have become the support and support lines of the stock price.