When the price rises, those foundations that have not bought short positions have regrets and frustrations, expecting the market to give them another chance. Therefore, when the price breaks through the resistance of a certain region and returns to this region, there will be short-term funds entering the market, so that the price will be supported.

Resistance is just the opposite. Those funds that have not been sold in a certain area will have the same psychology in the process of falling stock prices. When the price returns to that area, they will be eager to sell, making this area a resistance.