2. In terms of volume, the diffusion speaker horn maintains a high and irregular volume during the entire formation process, and does not decrease with the development of the shape;
3. The pattern may also break upwards, especially the top of the horn loudspeaker pattern, which is connected by two highs of the same level, the third probe has extremely shrinking volume, and then the stock price breaks upwards with high volume (the closing price exceeds the resistance level by 3%) . Then the originally expected analytical significance of this pattern will be revised, indicating that the previous upward trend will continue, and the future increase will be considerable;
4. There is no calculation formula for the small decline of this form to estimate the future decline, but in general, the decline is very large;
5. The downward breakthrough does not require heavy volume cooperation. It can be confirmed as long as it falls below the connection between the two points below; when the diffusion horn pattern appears, the following operation strategies can be adopted: Since the diffusion horn speaker pattern tends to break down, investors should try not to participate in it. Trading activities, pay attention to the operation of sterling reduction. A good selling point is to sell near the upper line, followed by a decisive stop loss when it falls below the lower line and pulls back.

