Understanding the RSI Strategy
Master the most popular momentum indicator. Learn how to identify overbought and oversold
conditions to time your market entries and exits with precision.
Momentum Analysis
Overbought/Oversold
Divergence Trading
Beginner Friendly
What is the RSI?
Quantifying Market Momentum
The Relative Strength Index (RSI) is a momentum oscillator that measures the speed and change of price movements. The RSI oscillates between 0 and 100. It is traditionally used to identify if an asset is "overbought" (price has risen too quickly) or "oversold" (price has fallen too quickly).
- Overbought (> 70): An RSI reading above 70 suggests the asset has been over-bought and may be due for a correction or a reversal to the downside.
- Oversold (< 30): An RSI reading below 30 suggests the asset has been over-sold and may be due for a bounce or a reversal to the upside.
Practical Trading Rules
Applying the RSI
While many beginners treat 70 and 30 as absolute "buy/sell" buttons, professional traders use them as contextual warnings:
- Wait for the Break: Don't sell just because the RSI hits 70. Wait for the RSI line to actually break back below 70 before considering a short position.
- Look for Divergence: The most powerful RSI signal is "Divergence." If the price makes a new high but the RSI makes a lower high, it signals that the trend is losing momentum, often predicting a major reversal.
Frequently Asked Questions
Can the RSI stay overbought for a long time?
Yes. In a very strong, sustained bull market, the RSI can stay above 70 for weeks. Never use the RSI in isolation—always confirm it with other indicators or price action.
What is the "50" level?
The 50-level is the neutral centerline. Many traders treat a move above 50 as a confirmation of bullish momentum, and a move below 50 as confirmation of bearish momentum.