The "Donchian Channel" shows the highest High an the lowest Low within a period.
Here FSB opens a long position at the 55 days Low and Closes it at the 55 days High.
The short logic is the same: Open short at High55 and close it at Low55.
The result is a reversible system.
A same direction signal - Does nothing
An opposite direction signal - Does nothing
[Opening point of the position]
Donchian Channel
Enter long at the Down Band
Base price - High & Low
Period - 55
Shift - 0
Use previous bar value - Yes
[Closing point of the position]
Donchian Channel
Exit long at the Up Band
Base price - High & Low
Period - 55
Shift - 0
Use previous bar value - Yes