Wall Street at session lows as rate hike looms; commods weigh

U.S. stocks hit session lows in early afternoon trading on Thursday, as a fall in commodity prices weighed on energy and materials stocks, and comments by several Federal Reserve policymakers pointed to an interest-rate hike next month. The rout hit all 10 major S&P sectors and pushed the Dow and S&P 500 below their 200-day moving averages. Investors are keeping a watchful eye on whether the Fed will raise interest rates off near-zero levels in December, as is widely expected after Frida