If you can observe so carefully, then you are not far from success. The opposite of the analysis results should be mainly due to the KDJ passivation phenomenon.

The KDJ indicator is an overbought and oversold indicator, while the Bollinger Band is a support and pressure indicator. The advantage of combining the two is that it can make the signal of the KDJ indicator more accurate. At the same time, since the Bollinger Band indicator in the daily price K-line indicator system often reflects the mid-term operating trend of the price, use these two Indicators play a certain role in determining whether prices fluctuate in the short term or in the mid-term. They are especially suitable for determining whether prices have peaked (bottomed) in the short term or entered a mid-term rise (fall), and have a relatively good research and judgment effect. We know that the upper rail of the Bollinger Bands has a pressure effect, and the middle rail and the lower rail have a support (pressure) effect. Therefore, when the price falls to the middle rail or the lower rail of the Bollinger Bands, you can ignore the signal sent by the KDJ indicator. And take action. Of course, if the KDJ indicator also reaches a low level, it should be regarded as the result of mutual verification of the short-term trend and the mid-term trend, and a more active operating strategy should be adopted. However, it should be noted that when the price falls to the lower Bollinger Band, even if it is supported and stabilizes, the KDJ indicator will rise simultaneously, but the signal of trend reversal has been sent, so at most it can only rebound once. When the KDJ indicator reaches a high of 80, it is safer to take selling action, because when the stock price falls below the middle track of the Bollinger Band, it will cause the opening of the Bollinger Band to narrow. At this time, it will take at least a long time to repair the indicator. Consolidation, so no matter from the perspective of preventing the risk of decline or considering the opportunity cost of holding, it is not appropriate to continue to hold.

Section 4: Practical skills of BOLL indicator

The practical skills of BOLL indicator mainly focus on the stock price K-line (or American line) and the upper, middle, and middle levels of BOLL indicator

The relationship between the lower rails and the opening and closing conditions of the Bollinger Bands. Since the BOLL

indicator is on the main chart on some software, in order to more accurately analyze and judge the market, we can use the combination of the BOLL indicator and the TRIX indicator

to study and judge the market. The following takes the BOLL indicator on the analyst as an example to reveal its buying and selling and wait-and-see functions.

(Note: On most software, the parameters of the BOLL indicator are generally not modified).

1. Buying and selling signals

1. When the K-line volume of the stock price breaks through the upper track of the Bollinger Band upwards, and the TRIX indicator has also issued a low "gold"

< When "p>cross", it means that the stock price is about to enter a medium and long-term rising channel, which is a buy signal sent by the BOLL indicator. At this time, investors should buy stocks promptly. As shown in Figure (20–1).

2. After the Bollinger Band track moves in a narrow horizontal range at a low level for a long period of time, once the stock price K-line moves upward

it breaks through the upper track of the Bollinger Band, and at the same time When the originally narrow Bollinger Bands channel suddenly opens upward, it means that the stock price is about to break away from the original horizontal channel and enter a new rising channel. This is also the buying signal issued by the BOLL indicator.

Input signal. As shown in Figure (20–2).

3. When the K-line of the stock price breaks through the middle track of the Bollinger Band downwards, and the TRIX indicator has also issued a high "death cross"

, it means that the stock price is about to enter a middle track. In the long-term downward channel, this is a sell signal sent by the BOLL indicator

. At this time, investors should clear their positions as soon as possible. As shown in Figure (20–3).

4. After the Bollinger Band track has moved at a high level and in a narrow range for a long time, once the stock price K-line breaks through downward

The lower track of the Bollinger Band, while the original narrow range When the Bollinger Bands channel suddenly opens downward, it means that the stock price is about to break away from the original horizontal channel and enter a new downward channel. This is also a sell signal sent by the BOLL indicator

< p>No. As shown in Figure (20–4).

2. Signals of holding stocks and holding coins

1. When the Bollinger Bands open upward, as long as the stock price K-line always runs above the middle track of the Bollinger Bands,

p>

It means that the stock price has been on a mid- to long-term upward track. This is a signal of holding shares waiting to rise sent by the BOLL indicator

. If the TRIX indicator also sends a signal of holding shares, this kind of The signal is more accurate. At this time, investors should

hold their shares firmly and wait for the price to rise. As shown in Figure (20–5).

2. When the Bollinger Bands open downward, as long as the stock price K-line always runs below the middle track of the Bollinger Bands,

It means that the stock price has been in a medium to long-term trend. In the downward trajectory, this is a signal to hold the currency and wait and see sent by the BOLL indicator

. If the TRIX indicator also sends a signal to hold the currency, this signal will be more accurate.

At this time, investors should

resolutely hold the currency and wait and see.