เมษายน 29, 2025 - OneRoyal Academy

What is the RSI?

If you’ve ever found yourself wondering whether a market is overheating or undervalued, the Relative Strength Index better known as RSI is one of the first tools you should have in your trading arsenal. RSI is a momentum oscillator that measures the speed and magnitude of a security’s recent price changes to evaluate whether it’s overbought or oversold. In simple terms: RSI helps you gauge when a market might be due for a reversal or a correction and when it’s probably not the best idea to jump on an already moving train. How Does RSI Work? Imagine RSI like the temperature gauge on your car dashboard. You don’t need to know exactly what’s happening under the hood you just need a clear reading telling you if things are running too hot or too cold. RSI moves on a scale from 0 to 100: Above 70 = typically considered overbought (potentially overvalued and a candidate for a pullback). Below 30 = typically considered oversold (potentially undervalued and could be due for a bounce). However, a key point that often trips up new traders: just because the RSI hits these thresholds doesn’t guarantee an immediate reversal. Markets can stay “overbought” or “oversold” longer than you might expect. Think of it as a warning light, not a full-stop command. Why is RSI Such a Key Indicator? Timing Potential Entries and Exits In volatile markets, timing is everything. RSI can offer a crucial edge by helping traders anticipate when momentum may be running out of steam. If you’re considering entering a long position but notice the RSI is spiking above 80, it might be wise to wait for a more favourable setup. Spotting Divergences Another powerful use of RSI is in spotting divergences between price action and momentum. For example, if prices are making new highs but RSI is making lower highs, it’s often a red flag that the rally could be weakening a classic setup for savvy traders. Flexibility Across Markets Whether you’re trading forex, stocks, crypto, or commodities, RSI adapts seamlessly. It works just as well on a 5-minute chart as it does on a monthly timeframe, making it one of the most versatile tools around. Final Thoughts: Using RSI the Smart Way Like any indicator, RSI is best used in combination with other technical tools, not in isolation. Think of it as a piece of the puzzle rather than the whole picture. Combine it with price action, support/resistance levels, or candlestick patterns, and you’ll greatly improve your decision-making. Remember: successful trading isn’t about predicting every move it’s about stacking probabilities in your favour. With RSI on your side, you’ll have a sharper eye for when those probabilities are

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