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we will provide you free Forex signals as well as Forex learning .And if you want to learn Forex completely then contact me on 0301-4020797 Join our Facebook Group https://web.facebook.com/groups/forexchamps/ bollinger band 90% successful strategy by Zeeshan Mehar watch till end for a Secret Developed by John Bollinger, Bollinger Bands® are volatility bands placed above and below a moving average. Volatility is based on the standard deviation, which changes as volatility increases and decreases. The bands automatically widen when volatility increases and narrow when volatility decreases. This dynamic nature of Bollinger Bands also means they can be used on different securities with the standard settings. For signals, Bollinger Bands can be used to identify M-Tops and W-Bottoms or to determine the strength of the trend. Signals derived from narrowing BandWidth are discussed in the chart school article on BandWidth.