Recently, I’ve noticed that many beginners still have misconceptions about how to use RSI during trading. Instead of blaming the indicator itself, it’s more about not understanding the proper parameter settings and trading strategies.

First, let’s clarify what RSI is. In Chinese, it’s called the Relative Strength Index, which uses a scale from 0 to 100 to measure the strength of price movements over a certain period. A high value indicates that the upward momentum is dominant, while a low value suggests that the downward momentum is in control. Many people know that RSI above 70 is overbought and below 30 is oversold, but that’s just a surface-level understanding.

From my experience, rather than rigidly sticking to these absolute values, it’s more important to understand how to choose RSI parameters. The default RSI 14 is used by most exchanges and is suitable for 4-hour and daily charts, making it a balanced choice for beginners. However, if you are a short-term trader, you might try RSI 6, which reacts faster and can more easily trigger overbought or oversold signals during significant price movements. The downside is that it may generate more false signals, so it should be combined with other filters. Conversely, a longer-term parameter like RSI 24 is better suited for weekly or higher timeframes, providing fewer but more reliable signals.

I think many people fall into this trap: they don’t adjust RSI parameters according to their trading cycle, resulting in being fooled by false signals in strong trending markets. For example, during a rapid rally, RSI might already be above 80. Seeing an overbought condition, you might want to short, but the price continues to rise. The problem isn’t RSI being a bad indicator; it’s that you don’t recognize that RSI can stay at extreme levels for a long time during strong trends.

Besides overbought and oversold signals, divergence is also worth paying attention to. When the price hits a new high but RSI doesn’t follow, it’s a bearish divergence, indicating that momentum may be waning. Conversely, a bullish divergence occurs when the price hits a new low but RSI doesn’t, suggesting selling pressure is weakening. However, divergence isn’t an absolute signal; it’s best to confirm with candlestick patterns or trendlines before entering a trade.

Another common mistake is ignoring the differences in timeframes. You might see an oversold RSI signal on a 15-minute chart but overlook that the daily RSI has already fallen below 50. In this case, the smaller timeframe’s signal can be suppressed by the larger trend, leading to losses.

Ultimately, RSI is just a supplementary tool used to gauge whether the market is overreacting and whether momentum is aligned with price movements. To improve your trading success rate, it’s essential to combine RSI with MACD, moving averages, or candlestick patterns for comprehensive analysis. Finding the RSI parameters that suit your trading style and developing a complete trading strategy is the more reliable approach. Beginners should start with the default RSI 14 to familiarize themselves and then gradually adjust parameters based on experience, rather than blindly copying others’ settings.