What is b-band-width-ratio Indicator?
B-Band Width Ratio is an MT5 subwindow indicator that displays the relative width of Bollinger Bands as a line. Bollinger period and standard deviation control the range used for the displayed ratio.
Lower and higher readings provide visual context for changing band width and market activity. The line describes recent volatility for comparison across bars.
How to Use It in Practice
Place the width line below the same chart that shows Bollinger Bands. The subwindow makes expansion and contraction easier to see without occupying the main chart: a subdued line indicates narrower displayed bands, while a rising line shows that their width is increasing.
- Compare the subwindow line with the width of the Bollinger Bands on the main chart.
- Review low, rising, and falling portions as changes in the displayed range rather than standalone directives.
- Use BBands Period and Standard Deviation to inspect a different band calculation sample.
Relative band width is condensed into one readable line, and simple period controls support comparison of changing volatility.
MT5 Indicator Parameters
The screenshot above shows the default input parameters in the MT5 settings window.
| Parameter | Description |
|---|---|
| BBands Period | Sets the number of bars used to calculate the Bollinger Bands. Shorter periods make the indicator react faster, while longer periods smooth out volatility cycles. |
| Standard Deviation | Defines the distance of the upper and lower Bollinger Bands from the moving average. Higher values widen the bands, reducing sensitivity to smaller price movements. |
