Inefficient movement, that is, the range market becomes a high number, the limit is reached at about 60 and a trend occurs When the range breaks and a trend occurs, the inefficiency drops to about 40 and many trends end. The full-scale trend goes down further and goes down to about 25, which is evaluated as an efficient movement, the limit is reached and the trend ends.
As for how to use this Inge, the direction of the trend needs to be considered in other ways. Create a position when you reach 60 Position closed or contrarian at 40 or 25 I assume the usage