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.

Pinpointing the right moment to apply your trading strategy is critical to forex trading. Trends help you accurately read the market's directional movements so you can jump on a trade at the right ...

Forbes contributors publish independent expert analyses and insights. John Navin is a Colorado-based journalist who writes about stocks. The S&P 500 on Friday hit another new high – it was brief as ...