All serious money managers know that the smart money is made not when the market is stable but when the market goes through a sudden state of change. Take for example, the end of a bull run or the imploding of an asset bubble.
Bollinger bands actually comprise three separate indicators and each tells you something about the price activity at a current point in the chart. This article looks at the Bollinger indicator, what each component of the indicator means.
Trends are common in currency markets yet often traders find it impossible to profit from them. The vertical grid gets around this by aggregating the trend so that you enter the market near to the average.