Learn what the relative strength index (RSI) is, how it works, and how to read overbought and oversold signals, along with the formula behind this popular indicator.

How the Relative Strength Index (RSI) Works As a momentum indicator, the relative strength index compares a security's strength on days when prices go up to its strength on days when prices go down.

In the world of technical analysis, there is one reliable indicator for measuring market risk. The relative strength index measures overextension. Investors commonly use a lookback period of 14 days ...

The financial markets can often feel like a massive, churning ocean, unpredictable and driven by forces beyond your control. You may be proficient in fundamental analysis, knowing what a great company ...