Market volatility

David Gura and Nela Richardson join Kai to recap the week that was.

We ask Robert Whaley, the father of the index, what all that 'noise' is about.

So there has been all kinds of volatility on Wall Street lately — triple digit ups and downs. Well, consider this: 27 years ago yesterday, October 19, 1987, was ‘Black Monday.’ The Dow was off 22 percent that day which came out to 508 points. The next day, known as ‘Terrible Tuesday,’ nearly caused the New York Stock Exchange […]

It's been a wild week on the stock market. The causes are numerous--from Europe to ebola to weak economic growth in the United States. But what are the likely effects--beyond the markets themselves?

A look at the weird things and people that have caused markets to crash.

The market’s up; the market’s down. What’s causing all the volatility?

Markets thy name is volatility. Over the past month, how much value has been lost on stock markets around the world?

Part of what’s moving traders is uncertainty about the Fed’s next moves. But a number of key factors around the world have investors bracing for more sharp peaks and deep valleys.