I just saw that many people have been asking about RSI in trading forums lately. It's interesting because most don't really understand how this indicator works beyond seeing if it's above 70 or below 30.

Look, the Relative Strength Index is basically a way to measure market momentum. It compares bullish closes against bearish closes over a certain period, usually 14 candles, and gives you a number between 0 and 100. That's it. Sounds simple, but people overcomplicate it unnecessarily.

What many don't realize is that RSI is just a tool. By itself, it won't make you money. I've seen traders obsessed with waiting for it to reach 70 or fall to 30 as if it were a crystal ball. It doesn't work that way. The indicator smooths out extreme price movements, yes, but that doesn't mean it's infallible.

The real magic is in recognizing when an asset is truly overbought or oversold. When you see RSI above 70, yes, there's excessive buying pressure. But an asset can stay there for weeks if investors keep buying at higher prices. The opposite happens at 30, where panic selling may occur but weak fundamentals keep the price low.

Look at Tesla between 2019 and 2022. In May 2019, RSI was clearly oversold. People expected a drop, but what happened was that the price started forming higher lows. The indicator recovered, and between June and December 2020, it stayed in overbought territory for months, hitting multiple highs in that zone. That wasn't a sell signal; it was a very strong bullish trend. Only when in October 2021 RSI failed to reach those previous overbought highs and the price started making lower highs did we see a real change.

That brings me to the most important point: the middle level of RSI, 50. That invisible number is crucial. When the indicator oscillates between 50 and overbought territory, the price tends to go up. When it drops between 50 and oversold, it tends to go down. As long as RSI doesn't cross that middle level, we're dealing with corrections within a trend, not a trend reversal.

Now, divergence is where RSI really shines. Imagine the price making lower lows in a decline, but RSI making higher lows. That's bullish divergence and a strong signal that the market is losing downward momentum and could rebound. The opposite happens in bearish divergence: price making higher highs but RSI making lower highs.

I've seen this work incredibly well. Broadcom years ago showed clear bullish divergence in oversold territory and then rose for months. Disney showed bearish divergence with lower highs in RSI while the price was rising, and then it fell for over a year.

Of course, RSI has limitations. On very short timeframes, it constantly gives false signals. That's why many combine RSI with MACD. The idea is that when RSI reaches overbought or oversold, you wait for it to return to the fluctuation band, then look for MACD confirmation with a crossover. That gives you more confidence.

The golden rule I learned is this: RSI is a necessary condition but not sufficient. You need to validate with trend analysis. If RSI indicates overbought but the price keeps breaking new highs, the uptrend continues. Only when you see a break of a previous trendline combined with RSI movement do you have a trade.

It's not really complicated; you just need discipline to wait for the right confirmations instead of trading every time the indicator hits an extreme zone. RSI is a valuable tool when used correctly, but remember that trend analysis should always be your foundation.