The pressure level and support level in the form are usually formed in three situations

The first is that pressure and support are easily formed at the early high point or low point, and before the high point breaks through It is the support after the pressure breaks through, the support before the low point breaks downward, and the pressure after the breakthrough.

The second type is the pressure and support of the trend line or orbit line. Connecting two low points will form a support line, and connecting two high points will form a pressure line

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The third type is the support of trading volume. Because there are a large number of chips, the price will usually form pressure and support where the previous trading volume has accumulated (can be used in combination with the first two situations)

In addition, Bollinger Bands, Golden Section, and band theory can also be used to calculate the support and pressure levels on the price.