As can be seen from the figure, the upper line is the upper rail line, which plays the role of pressure. The middle one is called the middle rail line, which plays the role of pressure and support. The bottom line is the lower rail line, which plays a supporting role.

Second, the classification of bollinger bands

1, the bollinger band rises with its mouth open.

The K-line slides along the upper rail of the Bollinger Band. This k line is the fish. The coping strategy is to sit tight and let the profits run.

2. Bollinger Bands are arranged horizontally

The K-line attacked the upper and lower rails of the Bollinger Band several times. This strategy in a volatile city is to throw high and suck low. Moreover, it should be noted that once there is a downward trend, you can decisively open positions. On the contrary, once we find an empty order, we can also place an order according to the market. Here, our transaction is different from the market. We can pay the bill in both directions, and the operation is extremely simple.

Third, actual combat training.

It takes time and process for novices to improve their trading skills. If you have the guidance of someone who has experienced it, you can take fewer detours and enter a profitable situation as soon as possible. A choice is a turning point! An attempt is an opportunity! Every opportunity is the beginning of your success!

After deep adjustment, the product price completely releases the downside risk and is in the early stage of rising. With the cooperation of trading volume, the stress test trend of the cross star was successfully realized, and the golden section line was perfectly broken. This is the best time to buy!

Fourth, matters needing attention

1, a buying signal, is to see whether the volume can be appropriately enlarged.

2. Pay attention to the width change of an opening in the bollinger band.

3. We should not take the price crossing the support line as a buying signal, but take the connection of the lowest price crossing the lower rail of the Bollinger Band as a signal that we can initially pay attention to the product.

4. After the primary election signal appears, the price will generally be withdrawn. If the price retracement effectively breaks through the lower rail and the bollinger band support line turns its head upwards, it can take the opportunity to intervene.