Stock indexes are collections of stocks meant to represent the market or a portion of it—they are used by investors as benchmarks against which to compare the performance of their own portfolios.

Like hemlines and haircuts, stocks go in and out of fashion. So do the ways companies communicate their performance to ...

A stock's beta indicates how volatile its price is compared to other stocks. Here's how to interpret beta when choosing ...

Whether you're a new investor or a seasoned pro, it helps to have a solid glossary at your fingertips to provide quick clarification on a particular term or to expand your overall stock market ...