A price charting method. A price move is registered as a “brick” in the direction of the trend, as long as the move is equal to the box size, i.e. the minimum amount. There are two types of bricks – white and black. A reversal to the downside takes place when a black box emerges after a series of white bricks. Conversely, a reversal to the upside takes place when a white brick is registered after a series of black bricks. The concept of box size helps to smooth out “noise” as price movements less than the box size are not registered.
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