The Dow Jones Industrial Average was sitting pretty at the end of January. And then it wasn't, as a correction hit. Since then it's gone up and down and up again, and the wild swings don't seem likely to end any time soon. With that in mind, we're keeping a semi-live look on the volatile markets. Here's the latest from Barron's reporters...

4:08 p.m. That was not a good way to end the day. The S&P 500 slumped 2.5% to 2643.69 today, while the Dow Jones Industrial Average tumbled 724.42 points, or 2.9%, to 23,957.89. The Nasdaq...