Relative vigor index (RVI)
How strongly bars close away from their open, relative to their range.
Formula
RVI = average over N of weighted(Close − Open) ÷ weighted(High − Low) weights 1, 2, 2, 1 over the last four bars; the signal uses the same weights
How to read it
Above zero, bars are closing above their opens — bullish vigor.
How to use it
Confirms trend strength; crossings of the signal line mark turns.
In Kereon
Charts · Superchart. Default 10; zero line drawn.
Also called: relative vigor, rvgi, vigor.