RSI
Relative Strength Index: a 0–100 oscillator comparing recent gains with recent losses.
Formula
RSI = 100 − 100 ÷ (1 + Average gain ÷ Average loss)
How to read it
Above 70 is conventionally overbought, below 30 oversold — in a strong trend it can stay there for weeks.
How to use it
Spot stretched moves and momentum divergences — price making a new high while RSI does not.
Limitations
In strong trends it stays overbought or oversold for weeks.
In Kereon
Investing · price record. 14 sessions, Wilder's smoothing.
Charts · Superchart. Wilder-smoothed over 14 bars; levels at 70 and 30. A window with no losses reads 100.
Also called: rsi, rsi 14, rsi14.