This indicator measures "Compression and Expansion" of current bars volume against 10 day average volume(Can be user defined)
Avg Volume = 10 day avg volume Wide volume = AvgVolume x 1.25 (Volume bar will be Blue color) Narrow Volume = AvgVolume x 0.65 (Volume bar will be Magenta color)
Yellow line -- 5 bar avg volume White Line -- 10 bar avg volume