The third part is the special analysis method of BOLL index. 1. The judgment of the "angle" of the BOLLinger band is a unique method of boll index.

The so-called "bell mouth" of Bollinger Band refers to the special shape similar to bell mouth formed when the upper and lower rails of Bollinger Band expand or approach the middle rail from two opposite directions respectively. According to the different running directions and positions of the upper and lower rails of the Bollinger Band, we can divide the "bell mouth" into three types: open bell mouth, closed bell mouth and closed bell mouth.

Open bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell. Bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bell bollinger band's upper and lower rails gradually shrink, and the distance between the upper and lower rails is getting smaller and smaller. With the gradual enlargement of trading volume, the stock price suddenly rose sharply. At this time, the upper rail of the bollinger band also rises rapidly, and the lower rail moves downward at an accelerated speed, so that the shape between the upper and lower rails of the bollinger band forms a special shape similar to a big horn.

The open trumpet is a form that shows a sharp upward breakthrough in short-term stock prices. It is a trend formed when the stock price faces upward changes after a long period of low and sideways bottoming.

The upper and lower tracks of the Bollinger Band appear in opposite directions but with great strength, which indicates that the bulls are getting stronger and the bears are gradually exhausted, and the stock price will rise sharply in the short term. There are two conditions for the formation of the shape of the open bell mouth.

First, the stock price has to undergo a long period of sideways consolidation. The longer the consolidation time, the smaller the distance between the upper and lower rails, and the greater the future ups and downs; Second, when the bollinger band begins to open, there should be considerable turnover. The shape of open bell mouth is based on the fact that the American line (or K line) breaks through the upper rail line and the stock price breaks through the medium and long-term moving average.

For the appearance of open bell mouth, if investors can buy it in a short time, it will be profitable. 2. Convergence trumpet When the stock price rose sharply after a short period of time, the upper and lower rails of the Bollinger Band gradually expanded, and the distance between them became larger and larger. With the gradual reduction of trading volume, the stock price fell sharply at a high level. At this time, the upper rail of the bollinger band began to turn around quickly, and the lower rail was still accelerating, so the shape between the upper and lower rails of the bollinger band became a special shape similar to an inverted horn. We put the bollinger band.

Convergence trumpet is a form that shows a sharp downward breakthrough in short-term stock prices. It is a trend formed when the stock price faces a downward change after a short period of sharp rise.

The upper and lower tracks of the Bollinger Band are in opposite directions, and the strength is very strong, indicating that the short-term strength becomes stronger, the long-term strength begins to decline, and the stock price will be in a state of sharp decline in the short term. Although there is no requirement for the formation of convergent flare shape, it must also meet a condition, that is, after a large short-term increase in the previous period, the greater the increase, the greater the distance between the upper and lower rails, and the greater the future decline.

The formation of convergence horn is based on the fact that the stock price began to turn down on the upper rail and the stock price fell below the short-term moving average. For the emergence of convergence trumpet, if investors can sell in time, they can keep profits and reduce big losses.

3. When the stock price of tight-mouthed trumpet falls for a long time, the upper and lower rails of Bollinger Band gradually move closer to the middle rail, and the distance between the upper and lower rails is getting smaller and smaller. With the volume getting smaller and smaller, the stock price oscillates repeatedly at a low level. At this time, the upper rail of the bollinger band is still running down, while the lower rail is slowly rising. In this way, the shape between the upper rail and the lower rail of the bollinger band becomes a special shape similar to an inverted horn. We call this bell mouth of the bollinger band a tight bell mouth.

Tight-lipped trumpet is a form, indicating that the stock price will be slightly consolidated for a long time and bottom out. It was formed after the stock price fell sharply for a long time.

Facing the trend of long-term adjustment. The gradual approach of the upper and lower rails of the Bollinger Band indicates that the strength of both sides is gradually balanced, and the stock price will be in a long-term sideways consolidation market.

The forming conditions and confirmation criteria of closed bell mouth shape are relatively loose. As long as the stock price has fallen sharply for a long time, the transaction has shrunk extremely, and the distance between the upper and lower rails has become smaller and smaller, it can be considered that a tight-lipped trumpet has initially formed. When tight horns appear, investors can wait and see, or they can open a small number of positions.

Second, the trading sign of the middle rail is 1. When the US line (or K line) breaks through the middle track of the Bollinger Band, if the stock price also breaks through the medium-term moving average of the stock price, it means that the short-term upward trend of the stock price begins to take shape, which is a sign of short-term buying revealed by the Bollinger Band indicator. 2. When the US line (or K-line) breaks through the middle of the Bollinger Band, if the stock price rises in the middle of the Bollinger Band, it means that the short-term and medium-term rising trends of the stock price have complemented each other, which is a sign of buying or holding shares on dips revealed by the Bollinger Band index.

3. When the US line (or K-line) falls below the middle track of the Bollinger Band, if the stock price also falls below the short-term moving average, it means that the short-term downward trend of the stock price begins to take shape, which is a short-term selling sign revealed by the Bollinger Band indicator. 4. When the US line (or K line) breaks through the middle of the Bollinger Band, if the stock price is suppressed by the middle of the Bollinger Band, it shows that the short-term and medium-term downward trends of the stock price have complemented each other, which is a sign of holding money and waiting to see.

Third, the combination of BOLL indicator and KDJ indicator KDJ indicator is overbought and oversold indicator, while Bollinger Band is the supporting pressure indicator. The advantage of combining the two indicators is that it can make the signal of KDJ indicator more accurate. At the same time, because the bollinger band index in the daily K-line index system often reflects the mid-term running trend of the price, it is useful to use these two indicators to judge whether the price fluctuates in the short term or in the medium term, which is especially suitable for judging the price.

What does boll mean?

BOLLinger Band) Boll indicator Boll indicator is also called Bollinger Band. Its full English name is "Bollinger Bands", which is named after the surname of john bollinger, the founder of this index. It is a medium-and long-term technical analysis tool to judge the trend of stock price movement.

The principle and calculation method of BOLL indicator The principle of BOLL indicator is a very simple and practical technical analysis indicator designed by John Brin, an American stock market analyst, according to the standard deviation principle in statistics. Generally speaking, the movement of stock price always changes within a certain range around a value center (such as moving average and cost line). ). On the basis of the above conditions, the Bollinger Band Index introduces the concept of "stock price channel", which holds that the width of stock price channel changes with the fluctuation range of stock price, and the stock price channel is variable and will automatically adjust with the change of stock price.

It is precisely because of the characteristics of flexibility, intuition and trend that BOLL index has gradually become a popular index widely used by investors in the market. Among many technical analysis indexes, BOLL index belongs to a special kind.

Most technical analysis indicators are constructed by quantitative methods, independent of trend analysis and shape analysis, while BOLL indicators are closely related to the shape and trend of stock prices. The concept of "stock price channel" in BOLL index is an intuitive expression of stock price trend theory.

BOLL uses the "stock price channel" to display the various price points of the stock price. When the stock price fluctuates slightly and is in consolidation, the stock price channel will narrow, which may indicate that the stock price fluctuation is in a temporary quiet period; When the stock price fluctuates beyond the upper track of the narrow channel of the stock price, it indicates that the extremely fierce upward fluctuation of the stock price is about to begin; When the stock price fluctuates beyond the lower track of the narrow stock price channel, it also indicates that the extremely sharp downward fluctuation of the stock price will begin. Investors often encounter two of the most common trading traps. One is to buy low. After investors bought at the so-called low level, the stock price did not stop falling, but continued to fall. The second is the high selling trap. After the stock was sold at the so-called high point, the stock price rose all the way.

The bollinger band is especially suitable for Einstein's theory of relativity, which holds that all kinds of markets are interactive, and all kinds of changes within and between markets are relative, and there is no absoluteness. The stock price is relative, and whether the stock price is higher or lower than the upper rail line only reflects the relatively high or low stock price. Before making investment judgment, investors must also comprehensively refer to other technical indicators, including quantity-price coordination, psychological indicators, analogy indicators, and relevant data between markets. In a word, the stock price channel in BOLL index has an important reference function for predicting the future market trend, and it is also a unique analysis method of bollinger band index.

Calculation method of BOLL index Among all the index calculations, the calculation method of BOLL index is the most complicated one, in which the concept of standard deviation in statistics is introduced, which involves the calculation of middle trajectory (MB), upper trajectory (UP) and lower trajectory (DN). In addition, like other indicators, BOLL indicators include daily BOLL indicators, weekly BOLL indicators, monthly BOLL indicators, annual BOLL indicators and minute BOLL indicators.

Daily BOLL index and weekly BOLL index are often used in stock market research. Although their calculated values are different, the basic calculation method is the same.

Taking the calculation of daily BOLL index as an example, the calculation method is as follows: 1. In the calculation formula of daily BOLL index, trajectory = upper rail of N moving average = middle rail+double standard deviation; Lower trajectory = middle trajectory-double standard deviation 2. Calculation process of daily BOLL index 1) Calculate the sum of closing prices expressed in days MA=N ÷N 2) Calculate standard deviation MD MD= the square root of the sum of (C-MA) expressed in days divided by N 3) Calculate lines MB, UP and DN MB=(N- 1) Where the upper trajectory UP is the connection line of UP value, which is represented by yellow line; The middle track MB is the connection line of MB value, which is represented by white line; The lower rail line DN is the connecting line with DN value, which is indicated by purple line; The price line is represented by American line, and the color is light blue.

Like other technical indicators, in actual combat, investors do not need to calculate BOLL indicators, but mainly understand the calculation method and process of BOLL, so as to grasp the essence of BOLL indicators more deeply and lay the foundation for the use of indicators. The general criteria for judging the BOLL index mainly focus on the meaning of the upper, middle and lower tracks in BOLL index 1. The moving range of the stock price channel formed by the upper, middle and lower tracks in BOLL index is uncertain, and the upper and lower limits of the channel change with the fluctuation of stock price.

Under normal circumstances, the stock price should always run in the stock price channel. If the stock price runs out of the stock price channel, it means that the market is in an extreme state.

2. In the BOLL indicator, the upper and lower tracks of the stock price channel are the highest and lowest prices that show the safe operation of the stock price. The upper rail, middle rail and lower rail can all support the operation of the stock price, and the upper rail and middle rail sometimes put pressure on the operation of the stock price.

3. Generally speaking, when the stock price runs above the middle rail of the Bollinger Band, it shows that the stock price is in a strong trend; When the stock price runs below the middle of the bollinger band, it shows that the stock price is in a weak position. The relationship between the upper, middle and lower rails in BOLL index is 1. When the upper, middle and lower rails of the Bollinger Band run upward at the same time, it shows that the stock price is very strong and will continue to rise in the short term. Investors should resolutely hold shares to rise or buy on dips.

2. When Brin runs down with the upper and lower rails at the same time, it shows that the weakness of the stock price is very obvious, and the stock price will continue to fall in the short term. Investors should resolutely wait and see or buy on rallies. 3. When the upper rail of the Bollinger Band runs downward, while the middle rail and the lower rail are still running upward, it shows that the stock price is in a consolidation trend.

If the stock price is in a long-term upward trend, it shows that the stock price is a strong consolidation on the way up, and investors can wait and see or buy on dips.

What is bollinger band boll?

BOLL Brin indicator generally judges the future trend of stock price through the relationship between three BOLL indicator lines, namely, the upper rail line, the middle rail line and the lower rail line, and then guides our operation.

1. When the upper, middle and lower tracks of the BOLL index run upward at the same time, it shows that the market power is very obvious and will continue to rise in the short term. Investors should resolutely hold more shares. At the same time, pay attention to the position of the stock price in the bollinger band. If the bollinger band is above the middle rail line at this time, it represents strength and can participate.

2. When the upper, middle and lower tracks of the BOLL index run down at the same time, it shows that the weak characteristics of the market are very obvious. If the stock price is below the middle track at this time, investors should resolutely short. Go out and wait and see

3. When the upper rail line of BOLL indicator runs downward, while the middle rail line and the lower rail line are still running upward, it indicates that the market is in a consolidation situation. At this time, the stock maintains its previous running trend. If the stock was at the top before, it will continue to be sorted at a high level; If it is in a downward trend, then at present, the stock is due to the weak consolidation in the decline, and investors should wait and see and wait for the market outlook before making a decision.

4. When the upper rail line of 4.BOLL exponent runs upward, it is very unlikely that the middle rail line and the lower rail line will run downward at the same time, which is of little significance for guiding the actual operation. We won't judge here.

5. When the upper, middle and lower tracks of the BOLL index are running horizontally almost at the same time, it shows that the stock fluctuates very little at present, and it has been in this situation for a long time, mainly on the sidelines.

The bollinger band channel limits the fluctuation range of the stock price, and the general price will not exceed the bandwidth of the bollinger band. At the same time, the bollinger band can see that the stock price is overbought and oversold, overbought when approaching the upper rail line and oversold when approaching the lower rail line; Strong above the middle rail line, weak below the middle rail line.

These can be understood slowly. For beginners, you can refer to relevant books and systems to learn about it, and practice with a simulation disk, so that you can master skills quickly and effectively by practicing theory. At present, Niu Gubao's simulated stock trading is not bad, and there are many indicators to guide. Each indicator has a detailed description, how to use it, how to operate it in what form, and it is very helpful to use it. I hope I can help you, and I wish you a happy investment!

What is the bollinger band?

What is the bollinger band? What does the bollinger band mean? BollingerBands is called Bollinger Bands in English, and the name is taken from the surname of the founder john bollinger.

Its exact meaning is; The stock price fluctuation band shown by the bollinger band. In practical application, people often abbreviate it as Boll.

Bollinger Band is a very practical technical index designed according to the standard deviation principle in statistics. It consists of three track lines, of which the upper and lower lines can be regarded as the pressure line and the support line of the price respectively, and there is an average price line between the two lines. Generally, the price line runs in a belt-shaped interval composed of upper and lower tracks, and the position of the track is automatically adjusted with the change of price.

When the band narrows, there may be fierce price fluctuations immediately; If the high and low points cross the band boundary line and immediately return to the band, there will be a gear back. Bollinger Bands have four main functions: 1. Bollinger bands can indicate support and pressure positions; 2. The bollinger Band can show overbought and oversold; 3. Bollinger bands can indicate trends; 4. Bollinger Bands have channel function.

The actual effect will be better if the bollinger band is used comprehensively with static indicators. Bollinger bands are generally shown as three lines. If the switch parameter is set to 1, the graph will be displayed as four lines.

The outermost two are the support line (downward line) and the resistance line (upward line) of this trend. The width of the band shows the range of price changes.

The wider the width, the greater the price change. The theoretical application principle of static indicator Bollinger Band is that when the price crosses the outermost pressure line (support line), it means that the selling point (buying point) appears.

When the price moves up (down) along the pressure line (support line), although the price does not cross, if it breaks through the second line, it is a selling point or a buying point. Accordingly, the main trading rules are as follows: 1. When the price crosses the downward line from bottom to top or the upward line from top to bottom, it can be regarded as a reversal signal.

2. When the price crosses the midline from bottom to top, the price will accelerate, which is a signal to increase the position and buy. 3. When the price fluctuates between the middle line and the upward line, it is a bull market, and you can wait and see more positions.

4. After the price runs between the middle line and the upward line for a long time, the selling signal is that the price falls below the middle line from top to bottom. 5. When the price fluctuates downward between the midline and the downtrend, it is a short market. At this time, investors should wait and see with money.

6. When the bollinger band closes, it is likely that the market will break out.

What is the bollinger band and what is its function?

Bell-bell line

I. Introduction:

This index was created by john bollinger. First, the standard deviation of the stock price was calculated, and then the confidence interval of the stock price was obtained. This indicator and Mike's indicator are both "path indicators", and the stock price fluctuates within the range of "upper limit" and "lower limit", but BOLL has only one "upper limit" and one "lower limit". In fact, an average line of the stock price must be drawn graphically.

The stock price hovers between the "upper limit" and "lower limit". The width of this band varies with the fluctuation of stock price. When the stock price fluctuates greatly, the band becomes wider, and when the fluctuation is narrow, the band becomes narrower. In other words, the bollinger band is variable and can automatically adjust its position as the stock changes. Because of its flexibility and adaptability, the bollinger Band has become one of the most commonly used technical indicators in the international financial market in recent years.

Second, the application rules

The banded area of 1. bollinger bands can be regarded as being in the "normal range" when moving horizontally. At this time, when the stock price exceeds the "upper limit", a short-term retracement will be formed, which is a short-term selling signal; When the stock price goes down beyond the "lower limit", it will form a short-term rebound, which is a short-term buying opportunity.

2. When the banded region first moves to the upper right and then moves to the lower right, it is abnormal. When the stock price continuously exceeds the "upper limit", it implies that the stock price will run upward; When the stock price continuously crosses the "lower limit", it implies that the stock price will run downward.

Although the bollinger band is a pressure support indicator, it also has the characteristics of overbought and oversold. When it is used with ROC (rate of change) and CCI (homeopathic indicator), it can make up for blind spots.

What does the bollinger band mean?

Bollinger Bands, the Brin index, was created by Mr. John Brin. He used the statistical principle to find the standard deviation of stock price and its confidence interval, so as to determine the fluctuation range and future trend of stock price, and used bands to represent the safe high and low price of stock price, so it was also called Bollinger Bands.

The upper and lower limits are not fixed, but change with the stock price rolling. Like Mike's indicator, the Brin indicator belongs to the path indicator, and the stock price fluctuates in the upper and lower range. The width of this band varies with the fluctuation of stock price. When the stock price rises and falls, the banded region becomes wider, the fluctuation range becomes narrower and the banded region becomes narrower when it is consolidated.

What is the bollinger band? What's the point? How to use it?

It was john bollinger, a market analyst and critic of American Consumer News and Business Channel, an American financial television station, who invented a stock trading tool called "Bollinger Band" in the early 1980s.

Abbreviation: BOLL

English full name: bollinger band

English full name: Bollinger Band

Indicator hotkey: BOLL

Original parameter value: 20

Indicator application rules:

1. When the stock price rises and crosses the bollinger band, there is a high probability of file inversion.

2. When the stock price falls below the lower limit of the Bollinger Band, the rebound probability is high.

3. When the vibration band of the bollinger band narrows, it means that the change of the disk surface is imminent.

4. Cotton peach must be used with %BB and width.

5. If the switch parameter is set to 1, the chart is represented by four lines.

The "four noes" principle of bargain-hunting in Bollinger Bands

1. The bollinger Band will not continuously fall below the lower rail. At the same time, it fell below the lower rail of Bollinger Band and the upper limit bb of Bollinger Band.

Don't shoot until you see the freezing point. The capital flow index mfi can be regarded as the rsi index with trading volume. A. Being a microfinance institution

3. If the adjustment time is not enough, the William indicator will not bottom out four times. At the same time, the medium-term decline in the market has been large, and the sign of William's bottoming out in the medium-term adjustment is buying opportunities.

4. There is no panic selling in the market. After selling * * *, the stock price suddenly fell sharply on the basis of long-term decline. At the same time, the volume of transactions increased greatly, and small and medium-sized investors were forced to reduce their positions on a large scale because of large losses and insurmountable panic. The volume at the bottom suddenly expanded to the maximum. At this time, the short position was successful, and the heavy hand greatly broke Brin's next track, which was an opportunity to "lure the enemy deeper." Once the attack volume of this huge bottom stock rises, it can often capture the opportunity of reversal and rapid rise above the medium term.

Bohr principle:

This index was created by john bollinger. First, the standard deviation of the stock price was calculated, and then the confidence interval of the stock price was obtained. This indicator and Mike's indicator are both "path indicators", and the stock price fluctuates within the range of "upper limit" and "lower limit", but BOLL has only one "upper limit" and one "lower limit". In fact, an average line of the stock price must be drawn graphically.

The stock price hovers between the "upper limit" and "lower limit". The width of this band varies with the fluctuation of stock price. When the stock price fluctuates greatly, the band becomes wider, and when the fluctuation is narrow, the band becomes narrower. In other words, the bollinger band is variable and can automatically adjust its position as the stock changes. Because of its flexibility and adaptability, the bollinger Band has become one of the most commonly used technical indicators in the international financial market in recent years.

Apply rules:

The banded area of 1. bollinger bands can be regarded as being in the "normal range" when moving horizontally. At this time, when the stock price exceeds the "upper limit", a short-term retracement will be formed, which is a short-term selling signal; When the stock price goes down beyond the "lower limit", it will form a short-term rebound, which is a short-term buying opportunity.

2. When the banded region first moves to the upper right and then moves to the lower right, it is abnormal. When the stock price continuously exceeds the "upper limit", it implies that the stock price will run upward; When the stock price continuously crosses the "lower limit", it implies that the stock price will run downward.

What is the bollinger band?

Bollinger Band is a very practical technical index designed according to the standard deviation principle in statistics.

It consists of three track lines, of which the upper and lower lines can be regarded as the pressure line and the support line of the price respectively, and there is an average price line between the two lines. Generally, the price line runs in a belt-shaped interval composed of upper and lower tracks, and the position of the track is automatically adjusted with the change of price. When the band narrows, there may be fierce price fluctuations immediately; If the high and low points cross the band boundary line and immediately return to the band, there will be a gear back.

The Bollinger Band, also known as the Bollinger Band, consists of three lines, usually a 20-balanced moving average in the middle, and the upper and lower lines are an upper line and a lower line respectively. The algorithm is to calculate the standard deviation SD (standard deviation) of the closing price of the standard bollinger band in the past 20 days, and usually multiply it by 2 to get the standard deviation twice. The upward line is 20 average plus 2 standard deviations, and the downward line is 20 average minus 2 standard deviations. You don't understand (1 20225? 7 8 3 7 9 4 8). Got it! Midline =20-day moving average upward = 20-day moving average+2SD (closing price on the 20th) downward = 20-day moving average-2SD (closing price on the 20th).