A trader works on the floor of the New York Stock Exchange on Monday. After a volatile day of trading the Dow Jones industrial average closed down 114.98 points, or 0.7%, to 16,528.03. (Andrew Burton / Getty Images) Stock investors hoping for a bit of relief after a rough August, take warning: September is historically a bad month for stocks, and this one offers a few more potholes than usual.
September is the only month […]
