
Bollinger Bands is a technical analysis tool invented by John Bollinger in the 1980s. Bollinger Bands used to measure the "highness" or "lowness" of the price relative to previous trades.
Bollinger Bands consist of:
an N-period moving average (MA)
an upper band at K times an N-period standard deviation above the moving average (MA + Kσ)
a lower band at K times an N-period standard deviation below the moving average (MA − Kσ)
When the markets become more volatile, the bands widen (move further away from the average), and during less volatile periods, the bands contract (move closer to the average).
Bollinger Bands strategy on working of the trend capturing :
1. Entry at outer bands of upper level and lower :
Attachment 12554
2. Entry at middle lines of moving average :
Attachment 12555
Different use on working of the supports on analytics to run the strategy available with the different offers on occupying the different indy syatem as trader to works of the decision according to personal preference on matching of the rules as supported the strategy with the trading plan.
read more :
_http://en.wikipedia.org/wiki/Bollinger_Bands
_http://www.investopedia.com/terms/b/bollingerbands.asp