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.

Investing in stocks can greatly increase long-term wealth if you buy high-quality companies and hold their shares over time. Millions of Americans do this when they fund retirement accounts, save for ...

The issue of insider trading has always been a hot one in the stock market and investment circles. Whereas illegal insider trading occurs when a person trades in stocks using non-public material ...

The indicator was developed by J. Welles Wilder Jr. and introduced in his seminal 1978 book, New Concepts in Technical Trading Systems. 1 In addition to identifying overbought and oversold securities, ...