TROUBLING

U.S. Stocks See Worst January Since 2009

Though closing up for the week, U.S. stocks had their worst January since 2009, when the country was still recovering from the financial meltdown. The S&P 500 slid 5.1 percent over the course of the month, and the Dow Jones fell 5.5 percent. The NASDAQ saw a 7.9 percent decline.