Expressed as a percentage, it is used to measure the upper and lower limits of the belt lining line and the width from the middle average line
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Brin limitThe width (BOLL WIDTH) is expressed as a percentage and is used to measure bandingBoll The upper and lower limits of, and the width from the middle average.
BOLL、Brin limitBB、Boll WIDTH, Boll WIDTH and Boll WIDTH constitute an indicator group, which are used together with high accuracy.
initialBrin indexBOLL is a very simple and practical method designed by American stock market analyst JOHN BOLL according to the standard deviation principle in statisticstechnical analysisIndicators.In general,price of stockThe movement ofaverage, cost line, etc.) within a certain range,Bollinger line indexIt is on the basis of the above conditions that the indicators are introduced“price of stockThe concept of "channel", which believes thatprice of stockThe width of the channel varies withStock price fluctuationThe range changes, and the stock price channel has variability, which will automatically adjust with the change of the stock price.Therefore, this indicator is also called "Bollinger Line" and "Bollinger Channel".
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(Channel) is one of the technical indicators frequently used by professional investors and some old investors.This indicator belongs to the path indicator,price of stockUsually fluctuates between the upper and lower limits.The width of Bollinger line can followprice of stockAnd automatically adjust the position.Because of this variation, the Bollinger Line has the characteristics of flexibility and compliance with the trend. It not only has the nature of the channel, but also overcomes the weakness that the channel width cannot be changed.
This indicator was later applied outside the stock market, for examplefutures、foreign exchangeIn the analysis of the price trend of precious metals, because of its flexibility, intuition and trend, BOLL indicators have gradually become popular indicators in the market widely used by investors.At the same time, it derivedBrin limitIndicator BB.
When BB>1, the stock price crossesBoll upper limit;BB<0，Represents that the stock price crosses the lower limit of the Brin Line.
When BB is lower than one,price of stockThe upper limit of BrinSell signal, high reliability;When% BB is higher from bottom to bottom, the buy signal generated by the stock price crossing the lower limit of Brin is highly reliable.
Judge according to the principle of deviation.Whenprice of stockIf BB fails to go up synchronously or even turns down when it is in a high level area and keeps rising, it indicates that the stock price will reverse and fall. YesSell signal；When the share price is atLow price zoneAnd when it continues to fall, if BB does not fall synchronously or even gradually too high, it indicates that the stock price will reverse and rise, which is a buying signal.
In the real market,Individual sharesOr the limit compression value of investment varieties is different. Readers should review the historical data in the past and correct the limit compression value by themselves according to their frequent low points.
