Gannanwei's eight buying and selling rules were proposed by Gannanwei based on the price cycle rule of the wave theory. They are eight rules for determining the timing of buying and selling according to the different positional relationships between prices and moving averages or between moving averages.

Long buying rules:

1. The moving average gradually flattens from a downward trend and begins to turn upward. At the same time, the price crosses the moving average and closes above the moving average. Long buying. As shown in the figure, buy point 1.

2. The moving average rises, the price is above the moving average, and it does not fall below the moving average during a callback, and then rises again. Long buying. As shown in the figure, buy point 2.

3. The price runs above the moving average, and falls below the moving average during a callback, but the moving average continues to rise, and the price quickly stands on the moving average again. Long buying. As shown in the figure, buy point 3.

4. The moving average goes down, the price runs below the moving average, and then suddenly plummets, far away from the moving average. At this time, it will get closer to the moving average again, and you can buy long in the short term. As shown in the figure, buy point 4.

Rules for short selling:

1. The moving average goes up, the price runs above the moving average, and then suddenly soars, getting farther and farther away from the moving average. At this time, it will get closer to the moving average, and you can short sell. As shown in the selling point 4 in the figure.

2. The moving average gradually flattens from the upward trend and begins to turn downward. At the same time, the price crosses the moving average and closes below the moving average. Short sell. As shown in the selling point 1 in the figure.

3. The moving average goes down, the price is below the moving average, and it does not break through the moving average during the rebound, and then falls again, short sell. As shown in the selling point 2 in the figure.

4. The price runs below the moving average, breaks through the moving average during the rebound, and the moving average continues to go down. The price soon falls below the moving average again, and short sell. As shown in the selling point 3 in the figure. (The relationship between the price and the moving average in the rule can be replaced by the relationship between the short-term moving average and the long-term moving average, and the application method is the same)