1. Judging buying and selling signals by combining K-line.
For example, when the K-line of the stock price shows a W-bottom shape, if the first bottom is located at or below the lower rail of the Bollinger Band, and the second bottom does not reach the lower rail of the Bollinger Band, and the volume generated when the second bottom is formed is less than the first bottom, it indicates that the stock price is likely to rebound upward in the future.
2. Combine other technical indicators to judge trading signals.
For example, when the KDJ indicator shows the golden cross signal, the indicator line enters the overbought area. At this time, the bollinger band indicator channel is gradually widened, and the stock price runs along the upper track of the bollinger band indicator, indicating that the stock price is strong in the short term. If the KDJ indicator has a high dead fork, and the stock price K line also returns from the outside of the upper rail line of the Bollinger Band indicator to below the upper rail line, it is a clear selling signal.
I listened to the notes compiled by the lecturer of the open class in Zhiniu Finance, hoping to help you. If appropriate, help adopt it.