The chipmaker Nvidia will replace its rival Intel on the stock index. And the paint company Sherwin-Williams will sub in for the chemical giant Dow.

The ins and outs of membership in the 30-company group that represents success across industries and reflects stock market conditions.

A Dow Jones committee considers company growth and investor interest when deciding which stocks to include in the index.

Financial experts love to toss-around this catch-all term. What does it actually mean?

Stock movements in after-hours markets get a lot of attention. But trading after markets close can be dangerous for small-time investors.

The market tells one story, but economic fundamentals have a different version

Companies that have been big winners, including tech firms, suffered steep declines.

Economic growth is strong, unemployment is low — there were no major global disasters that could trigger the Dow plunging more than 1,100 points today. So what happened?

Let's break down today's wild ride in the stock market. Should you be concerned?