Bollinger Band Width

The width of Bollinger Band shows middle price value in percent for the last PERIOD time periods. Sharp price changes tend to occur after the bandwidths tighten. You must be careful after the bandwidth’s tighten, because upon the historical experience, the market often starts the false movement just before the big price changes in another direction.

Syntax:

BollingerBandWidth
BollingerBandWidth()
BollingerBandWidth(“Period”,”Deviation”)
BollingerBandWidth(“OutPutStartCell”, ”Period”, ”Deviation”)

Inputs:

'Close' column values

Parameters:

• Period (default=14)
• Deviation (default=7)
• OutPutStartCell (default=the next blank column in the worksheet)

Examples:

BollingerBandWidth
BollingerBandWidth()
BollingerBandWidth(“14”,”7”)
BollingerBandWidth(14,7)
BollingerBandWidth(“G2”, “14”,”7”)
BollingerBandWidth(G2,14,7)