What is RSI?Relative Strength Index
A 0–100 indicator comparing average gains with average losses over a period; above 70 is overbought, below 30 oversold.
Learn “RSI” in an animated lesson
- Oscillators & MomentumDivergence
Price makes a new high but the indicator doesn't. Divergence is often an early warning that a trend is tiring, but it needs price to confirm.
- Oscillators & MomentumRelative Strength Index (RSI)
Compare the average gain and average loss over the last 14 candles and squeeze it into a 0–100 reading: what share of the force is pushing up.
- Oscillators & MomentumRSI in Trends: The Range Shifts
In uptrends RSI tends to swing between 40 and 80, in downtrends between 20 and 60. Identify the trend first, then decide where your overbought and oversold lines go.
- Indicators in Practice & BacktestingIndicator Confluence
Any single indicator is often wrong. When trend, momentum and volume all point the same way, the signal tends to be more reliable, but rarer.
- Volume & Volatility IndicatorsMoney Flow Index (MFI)
An RSI with volume: also 0–100, overbought above 80 and oversold below 20.
Related terms
See how “RSI” works for yourself with an animation you can drag and play.
Go to “Divergence”