Don't forget old friends and make new ones.
First, the popular science section:
1. bollinger band indicator: boll
Trend index
Boll index is one of the commonly used tools for technical analysis of stock market. By calculating the "standard deviation" of stock price, we can find the "trust interval" of stock price.
The index consists of three lines in the figure, arranged in the order of up and down. They are the upper rail, the middle rail and the lower rail. Among them, the upper and lower lines can be regarded as the pressure line and the support line of the stock price respectively, there is an average line of the stock price between the two lines, and the parameter of the Bollinger Band Index defaults to 20. Generally speaking, the stock price will run in the channel formed by the pressure line and the support line.
The calculation method of BOLL index is relatively complicated, and the concept of standard deviation in statistics is introduced, which involves the calculation of middle trajectory (MB), upper trajectory (UP) and lower trajectory (DN). Take the daily BOLL index calculation as an example, and the calculation method is as follows:
Calculation formula of daily bell index
Calculation process of daily bell index
1) Calculate mA
2) calculate the standard deviation MD
3) Calculate MB, UP and DN lines.
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Maybe some friends will be confused when they see the above words. In the vernacular, the middle track can be compared to the moving average. For example, if the BOLL parameter is set to 20, the middle track can be understood as the MA20 moving average. If the default parameter is set to 100, the median analogy of BOLL is MA 100 moving average.
The upper rail is based on the middle rail, plus twice the standard deviation. This is the usual range indicating the upward elasticity of the stock price.
The lower rail is based on the middle rail line, MINUS twice the standard deviation, which is usually used to indicate the downward elasticity of the stock price.
Specific to the standard deviation, an algorithm in mathematics. This is only a detailed interpretation, and it is inevitable that friends will have difficulties in learning. Very practical.
It is precisely because of this unique design that there will be such a magical effect. More than 90% of K-line and price will run in the upper and lower rail range.
Bollinger Bands have the following functions:
1, bollinger bands can indicate support and pressure positions; (Usually the upper rail represents pressure and the lower rail represents support. )
2. Bollinger bands can show overbought and oversold; (The stock price is temporarily above the upper rail line and below the lower rail line)
3. Bollinger bands can indicate trends; (It can be judged according to the running direction of the middle rail line)
4. Bollinger Bands have the function of channels (channels formed by upper and lower rails).
First, within the normal range, the technology and methods used in the bollinger Band.
The normal range is usually that the stock price runs in a certain width band, which shows that the stock price is in a relatively balanced state and there will be no extreme ups and downs. At this time, the use of bollinger bands is very simple.
1, selling point signal when the stock price approaches the upper rail line;
2. When the stock price approaches the lower rail line, buy some signals;
Second, the application of the Bollinger Band in the unilateral rising market
In a strong market, share prices continue to rise. Usually, the stock price runs between the middle track and the upper track. When the stock price rises continuously for a long time, take the middle track as the support reference. Stepping back without breaking the middle rail line is regarded as a low-suction buying point. Being close to the upper rail line is regarded as a high selling point. If the broken middle rail line can't stand up quickly, it is regarded as a trend going bad and a stop loss point.
Third, the meaning of shrinking mouth:
1, necking represents consolidation and gaining momentum. At this time, the upper and lower limits of the Bollinger Band are extremely small, narrower and closer, and the difference between the highest price and the lowest price of the stock price is extremely small. There is no room for profit in the short term, and it is also gaining momentum.
When the stock price fell sharply after several waves, the opening of the upper and lower limits of the bollinger band could not be enlarged, and the pressure line on the bollinger band contracted from top to bottom in advance. When the lower support line of the bollinger band shrinks from bottom to top, a round of decline will come to an end.
A big market may be brewing. Once the trading volume increases, the stock price rises, the bollinger band opens wider and the rising market begins.
2, the opening represents the re-election direction,
When the stock price rises from a low level to a high level after several waves, the openings of the top pressure line and the bottom support line of the Bollinger Band have reached a great extent, and the openings cannot be further enlarged and turned into shrinkage. This is a selling signal, and usually the stock price is followed by a sharp decline or market adjustment.
If the opening of the bollinger band is extremely narrow at a high level, once the stock price breaks down, the opening of the bollinger band will be enlarged and a round of decline will be inevitable.
BOLL with default parameters is sometimes prone to frequent overbought and oversold.
To put it simply, it is obviously at the lower rail line, but it may last for many days in the future.
Obviously, the stock price is already on the upper track, but it may be on the upper track for many days to come.
Success means success, failure means that all laws are empty.
The above content is more popular science. Before use, it is necessary to understand. Know what bollinger bands are and what their characteristics are. And its core functions and functions.
I believe that seeing this, some friends who like to wrangle may think. Making money in the stock market can't be that simple. You can make money by learning a simple indicator?
First of all, stock market trading is never a simple matter.
Secondly, the difficulty is like a pony crossing a river, which varies from person to person. However, it is beneficial and harmless to know more about the market, demand more from yourself and fear the market.
Moreover, in the end, it depends on whether you belong to the minority or the majority after all kinds of efforts (7 losses, 2 draws 1 income)
After all, people are using tools and methods. People have come their own way, even the simplest method can be turned into a weapon to make money. No matter how good the method is, if your own way is not enough, it may not have a good result.
Note: Knowing and being familiar with a tool means using it well. It's only a hundred thousand miles away.
BOLLinger Band Boll is indeed a very good technical analysis tool. How to use this tool perfectly, make good use of it and combine it with your own trading system. There is still a lot to learn.
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Serve the large-band trading system.
Stock selection level: industry+performance+location
I. Default parameters (set to 100)
Second, (Tongda letter software) daily K-line chart
The default parameter of BOLL-M is 20. A week is five trading days. Set the default parameter to 100. It is equivalent to putting BOLL-M under weekly K-line chart into daily K-line chart. Even in the minute chart, the parameter is set to 100, which is equivalent to using a higher level BOLL as a reference at the current level.
It can effectively reduce and reduce the false signals of passivation/overbought and oversold.
Third, use volume, combined with MACD indicators.
Purchase conditions and sales methods:
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A kind of buying point: the +MACD bottom of the lower trajectory approaches+deviates from this, which is somewhat similar to the three major trading points of correcting the conclusion.
In the corresponding space, the intensity (rising amount) is close to the upper rail direction.
In the corresponding space, the second strongest (whether the increase can be continuously amplified) moves closer to the middle track.
This kind of buying point is not recommended for beginners or friends with weak technical level.
Because, it is easy to face back-to-back situations and eat sets. The backstepping buying point combined with entanglement theory is guaranteed by interval set. That is, the final confirmation is made through the second level and the second level.
A selling point corresponding to a buying point:
If the rebound is strong (continuous heavy volume), the space will be profitable near the track.
If there is a rebound (the rebound does not continue to be heavy), there is a profit near the space.
If it falls short of expectations, it will hit a new low (the stop loss is set within the cost price 10 point).
The second buying point: stepping back does not break the middle rail (the middle rail line is upward, after breaking through the middle rail), overlapping MACD gold forks (ideally, the gold forks above zero axis, or the state of the gold forks), which is somewhat similar to the three major trading points of the entanglement theory.
In the corresponding space, the strength (rising volume) broke through the upper track.
In the corresponding space, the second strongest (the increase can't keep up) is close to the upper rail line.
If it falls below the middle track, stop loss and leave in time.
Reference example 1: shenzhou information 000555, the middle rail line was supported, with a two-day increase of 15%. Close to the upper rail, if you can't pass quickly, you will face retreat. If we break through the upper rail line, the market will continue.
Three types of buying points: stepping back after breaking the upper rail will not break the upper rail. The strong always buy something. (The premise is that the front is in a long-term sideways state, the BOLL-M horn is in a shrinking state, and it rises rapidly and breaks through the upper rail, but it does not break the upper rail when stepping back), which is similar to the position of the three major trading points (the upward deviation section after the formation of the central platform, and the three types of buying points formed by stepping back do not break the central platform)
Reference case stock 2: Kechuang Information 300730, rising 35% for three consecutive trading days.
This kind of buying point, such as falling below the upper track and leaving in time, is the first to control risks.
On the other hand, if the strong stay strong, it is often the main force of rising waves.
The strong rise is accelerating. Once the obvious upper shadow line appears, the position will be lowered. If you can't make up the position, you will gradually take all the profits.
The most important thing is:
Band trading, different from short-term, is not a small profit that pursues fast forward and fast out. Is to catch a rising segment. The ideal time to grasp the main wave. The second best thing is to grasp an upward acceleration section. Second best, seize the rebound opportunity at the daily level.
If, you have no principles.
If, you don't have any standards.
Then, you must not know what is doomed to give up.
Then, you must not know what is right for you.
Then, you can't have this kind of consciousness to earn the money you should earn and give up opportunities that are not suitable for you.
The inevitable result is that you want everything, you want to chase all the hot spots, and finally you are not sure about anything.
Correspondingly, it is bound to be frequent chasing up and down, frequent regret and sadness, and frequent entanglement and confusion.
There are so many potential lovers to choose from, but you only choose one from those potential lovers.
Abide by your own trading methods
Opportunities to do business are in line with their own trading methods.
Strictly take profit and stop loss
If there is no problem with this method
There is no problem in execution.
Give and take.
Let the winning percentage guarantee the result.
Let time make profits.
Earn the money you deserve.
Be a simple, persistent and dedicated person.
You can also take it directly (collect or share it).
Positive feedback is also the motivation for my continuous creation.
-practicing Zen in the sea of stocks