Mastering the Relative Strength Index (RSI): How to read it correctly

Over two decades of watching charts on a daily basis, I’ve misused the RSI early on and missed its deeper signals. This PDF document shares the lessons I wish I had fully grasped sooner — insights that have proven to be reliable across markets, trends, and time. 
 
The Relative Strength Index (RSI) is one of the most popular momentum oscillators in technical analysis. While many traders treat it as a simple overbought/oversold signal, deeper research and long-term observation show that RSI’s behavior shifts depending on the underlying market trend.
 
This document explains how the RSI really works, why overbought readings can actually signal strength, and how traders and investors can apply these insights effectively across asset classes.