The bollinger band is a price range calculated according to the principle of mathematical statistics. In fact, if you use the bollinger band to make a reply, you will feel accurate, but when you really apply it in actual combat, you will find all kinds of inaccuracies.
The role of the golden section line is mainly to accurately find the location of the callback rebound, and many people are using it. However, when using the golden section, there will be several split points, such as 0.236, 0.382, 0.5, 0.6 18, 0.764. Where will the market reverse? There must be five positions, and there may be a position reversal that is not the golden section, which shows that the golden section also has great disadvantages.
Trend line: the use of trend line is relatively simple. In the uptrend, go back to the vicinity of the trend line to do more, and the downtrend line joins the downtrend line to short. However, in the actual trading process, there will also be cases where the trend line has not been tested back or the trend line has been broken.
But generally speaking, it is the easiest to find a suitable trend line and use it according to the principle of trend line.
Average: The average is the most widely used indicator, which can be used to indicate the trend and also play the role of pressure support. However, it must be a trend indicator. The rising trend of the moving average is an upward trend, and the downward trend is a downward trend. However, it is not reliable to use the moving average to find pressure support, but the moving average in the critical period will indeed play a role in pressure support. But I think it is more appropriate to use the moving average to reflect the trend.
All these four indicators have been mentioned above. Generally speaking, indicators still have a certain role, but if you rely on too many indicators to trade, you will be dizzy. If you make money by indicators, the transaction is too simple. Why go to the construction site to move bricks? However, the simplest is often the most effective. Personally, I think the trend line and the moving average are the most practical.
In fact, trading is more like an art. At first, I fell in love with various indicators. Finally, when I was truly enlightened, I only acted according to one or two indicators, or even just looked at the K-line. Among them, the construction of personal experience, sentiment and trading psychology is the key to trading profit.
The above is just a personal opinion, for reference only.