Kristen is CNBC's markets producer. She tracks and quantifies market trends for live coverage from the floor of the New York Stock Exchange. Prior to joining CNBC, Kristen was an equity capital markets reporter at Bloomberg. She was also a contributor and researcher at footnoted, where she dug though SEC filings and broke news on material information. Kristen graduated cum laude from Northwestern University's Medill School of Journalism.
Since 1950, September is the worst performing month for the S&P 500 index.
Here's how to tell if excessive shorting will result in a reversal known as a short squeeze.
While U.S. indexes suffer from the dog days of summer, emerging markets look to be on a tear.
The Dow shattered through the 17,000-mark Thursday for the first time ever. So far this year, however, the index has been left behind.