Vortex indicator
Upward against downward trend movement, each relative to the true range.
Formula
VI+ = Σ |High − prior Low| ÷ Σ True range VI− = Σ |Low − prior High| ÷ Σ True range
How to read it
VI+ above VI− is an uptrend; a crossing is the signal.
How to use it
Identifies the start of a trend and its direction.
In Kereon
Charts · Superchart. Default 14, a reference line at 1.
Also called: vi+, vi-.