Relative Strength Index (RSI)
The Relative Strength Index (RSI) is a tool that measures whether a crypto price has mostly risen or fallen recently. It helps show whether the price may have risen or fallen too quickly.
What is the Relative Strength Index (RSI)?
The RSI is a technical indicator. It’s a calculation based on past price movements. The result is always between 0 and 100 and usually appears in a separate chart below the price chart.
The RSI compares average gains with average losses, often over a 14-day period. Above 50, gains were stronger during that period. Below 50, losses were stronger.
A value above 70 is often called overbought: the price has risen sharply in a short time. Below 30 is often called oversold: the price has fallen sharply. These are warnings, not certain predictions.
An example of the RSI
Suppose the RSI for Bitcoin is 75. The Bitcoin price has risen sharply recently and is in overbought territory.
That doesn’t mean the price will drop right away. It only means someone might watch more closely for weakening momentum or a possible temporary pullback.
Why is the RSI important in crypto?
The RSI often appears in technical analysis of crypto. Analysts use the indicator to describe whether momentum—the strength behind a price movement—is increasing or decreasing.
News about a sharp rise may mention a high RSI. During a steep drop, a low RSI may appear instead. Think of this as a clue about recent price movements, not a buy or sell signal.
The RSI can give misleading signals. In a strong bull market, it can stay above 70 for a long time while the price continues to rise. In a bear market, it can stay below 30 for a long time while the price continues to fall. That’s why analysts usually use the RSI alongside other forms of technical analysis.
