What is an index? It’s hard to say these days. An index used to be a broad measure of market value. Today, it appears to mean any list of securities that are configured and managed in any way. This ...

Index funds are mutual funds that seek only to mirror the performance of an underlying stock market index — not to outperform it. Millions of investors hold them in their portfolios because they ...

An index fund is a mutual fund or ETF composed to match the composition of a benchmark stock index and mirror its performance. For example, The Vanguard Russel 2000 ETF is composed of the same stocks ...

Gordon Scott has been an active investor and technical analyst or 20+ years. He is a Chartered Market Technician (CMT). Katrina Ávila Munichiello is an experienced editor, writer, fact-checker, and ...

What Is the Relative Strength Index (RSI)? The relative strength index (RSI) indicates whether a security, such as a stock, is overbought or oversold. It’s a technical indicator that is a part of a ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...