Recently, a friend asked me what RSI means, and I realized that many new traders are still a bit unfamiliar with this indicator. Actually, the meaning of RSI, to put it simply, is to determine whether an asset has been overhyped or sold off too aggressively.

Let me briefly explain what RSI represents. The full name of this indicator is the Relative Strength Index, which is a momentum oscillator with values ranging from 0 to 100. When RSI exceeds 70, it usually indicates that the asset is in an overbought condition and may be due for a correction; conversely, below 30 suggests oversold conditions, often signaling a rebound opportunity.

This tool was developed in 1978 by J. Welles Wilder Jr. The calculation method uses the average gains and losses over a 14-day period. The RSI formula is RSI = 100 - (100 / (1 + RS)), where RS is the average gain divided by the average loss during the upward and downward periods. It sounds complex, but in essence, it quantifies the internal strength of an asset.

The most common signal I use with RSI in trading is divergence. For example, if the price hits a new high but RSI is trending downward, it indicates that although the price is rising, the momentum is waning, which may suggest a bearish reversal is coming. Conversely, if the price hits a new low but RSI is rising, it could be a bottoming signal.

Regarding the practical application of RSI, many professional traders use it to optimize buy and sell points. By identifying overbought and oversold conditions, traders can better time their entries and exits, profiting from price pullbacks or rebounds. I’ve also seen many quantitative trading strategies that automatically execute based on RSI thresholds, especially in volatile markets like cryptocurrencies, where some platforms offer RSI tools for quick decision-making.

In fact, RSI simply provides a quantitative reference to help you gauge market sentiment. When combined with other technical indicators and fundamental analysis, it can significantly improve prediction accuracy. Whether in stocks, forex, commodities, or cryptocurrencies, RSI is a standard tool in the technical analysis toolbox. If you're interested, you can check out the RSI performance of various assets on Gate and experience the power of this indicator in actual trading.